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The Recent Tremors A series of nine small earthquakes struck the Pardis area east of Tehran overnight, Iran’s Mehr news agency reported on Wednesday, renewing fears among experts and residents that the Iranian capital could face a major seismic disaster. Concerns Over Accumulated Tectonic Pressure The repeated activity has revived concerns that accumulated tectonic pressure beneath and around the capital, which lies close to several active fault lines, could at some point in the future trigger a much larger earthquake. The Mosha Fault: A Major Seismic Zone The tremors, recorded over a single night in eastern Tehran province, were felt in an area close to the Mosha fault, one of Iran’s most active seismic zones. The fault, about 150km (93 miles) in length, is one of the major active faults of the country, located approximately 40km (25 miles) from the capital. No Casualties or Damage Reported State media reported that the magnitude of one of the earthquakes was 4.6, but the mild seismic activity did not cause casualties or material damage. Warnings of Future Risk Semi-official Mehr news agency quoted seismologist Mehdi Zare as saying it was not clear whether the tremors represented a release of built-up seismic energy that would reduce future risk or instead were warning signs of stronger future activity along the fault system near Tehran. Zare warned that Tehran’s vulnerability is amplified not only by active fault lines but also by dense urban development, population concentration and limited preparedness. He said even relatively small earthquakes can cause disruption in the capital due to fragile infrastructure and congestion, complicating emergency response. Tehran's Vulnerability Tehran, a metropolitan area of more than 14 million people, lies near major active faults, including the North Tehran, Mosha and Rey. Iranian experts have repeatedly warned that a major earthquake near Tehran could have catastrophic consequences. Iran is among the world’s most quake-prone countries, and memories remain vivid of the 2003 Bam earthquake, which killed more than 30,000 people.

The Lead US President Donald Trump departed for Beijing on Tuesday for a high-stakes summit with Chinese President Xi Jinping, saying the two leaders would hold a 'long talk' on Iran even as trade remains the main focus of the visit. Iran's Stance on Peace Iran presses US on peace proposal: Iran's chief negotiator and Parliament Speaker Mohammad Bagher Ghalibaf said Washington must accept Tehran's latest peace plan or face failure. Report says Iran retains missile strength: The New York Times reported Tuesday that classified US intelligence assessments say Iran still has substantial missile capabilities, with about 70 percent of its mobile launchers and pre-war missile stockpile still in action. War Diplomacy Chinese supertanker crosses Hormuz: Chinese crude oil supertanker Yuan Hua Hu was reportedly transiting the Strait of Hormuz on Wednesday, ship-tracking data showed, passing Iran's Larak Island while heading out of the Gulf. Hezbollah rules out disarmament talks: Hezbollah chief Naim Qassem said his group's weapons were not part of forthcoming ceasefire negotiations between Lebanon and Israel. Qatar warns over Hormuz pressure: Qatar's prime minister said Iran should not use the Strait of Hormuz, blocked since early in the war, as a means of 'blackmail' against Gulf states. The Gulf UAE gas facility hit by war: The UAE's main gas processing complex, one of the world's largest, will not resume full capacity until next year, its operator said, after it was hit in the Iran war. Kuwait arrests alleged IRGC operatives: The country said it arrested four men accused of belonging to Iran's IRGC after they tried to infiltrate Bubiyan Island by sea and injured a Kuwaiti soldier. In the US Trump on Xi: Trump said he does not believe the US needs China's help to end the war involving Iran, but confirmed the issue would still feature in his talks with Xi Jinping this week. Trump says war's end will bring down inflation: Facing growing domestic pressure over rising prices linked to the conflict, Trump said the war 'will not be long' and argued its end would trigger a sharp drop in oil prices and inflation. US says Iran war has cost $29bn: Defense Secretary Pete Hegseth told lawmakers the war has cost Washington at least $29bn in munitions and equipment over 74 days, excluding damage to bases. The Impact Analysis The ongoing conflict in Iran has significant implications for the global economy, with rising oil prices and inflation being major concerns. The war has also led to a humanitarian crisis, with hundreds of thousands of students displaced and schools destroyed in Lebanon. The Prediction The future outlook for the conflict in Iran remains uncertain, with both sides showing no signs of backing down. However, with growing domestic pressure and international diplomacy, there is a possibility that the conflict could be resolved peacefully in the near future.

The Lead: A High-Stakes Diplomatic Encounter Chinese President Xi Jinping is expected to seek concessions on Taiwan and US tariffs when he meets United States President Donald Trump for a critical summit taking place in the shadow of the war on Iran. Trump's arrival in China marks the first trip by a US leader to the country since 2017, setting the stage for what could be a pivotal moment in US-China relations. The Taiwan Confrontation: Core Interest and Red Lines Unlike Trump's mercurial policymaking approach, Xi is widely seen as predictable in his goals for the summit, particularly concerning Beijing's "core interests" related to national security and territorial integrity. At the top of that list is Taiwan, which Beijing views as an inalienable part of its territory despite Taiwan's self-governing status. China has named Taiwan as the first of "four red lines" that "must not be challenged." In a call with US Secretary of State Marco Rubio last month, Chinese Foreign Minister Wang Yi described Taiwan as "the biggest risk in the China-US relationship." While analysts say it's unlikely the US will change its position on Taiwan due to Chinese pressure, Trump has indicated the summit will include discussions about the $14bn arms package approved by Congress for Taiwan. The Trade War Dynamics: Economic Uncertainty and Strategic Maneuvering Xi is also eager to smooth over US-China relations after a tumultuous 18 months that saw Trump launch a second trade war with the world's second-largest economy. The standoff saw both countries implement escalating tariffs and punitive measures, including export controls, before hitting pause in May. During their last meeting in South Korea in October, Xi and Trump agreed to a one-year reprieve in their trade war, though some trade measures remain in place. China is likely to agree to increase purchases of US agricultural exports and Boeing planes during the summit, but is unlikely to make concessions on rare earths—a sector it dominates—without major political trade-offs from the US. The Geopolitical Chessboard: Iran Conflict and Global Implications The US-Israel war on Iran will loom large over the summit. Although not a direct participant, China has been significantly impacted by the economic fallout of the conflict and the shutdown of the Strait of Hormuz, through which one-fifth of global oil and natural gas supplies typically pass. Beijing has consistently called for negotiations and a comprehensive ceasefire since the conflict began, a message Xi is likely to reiterate. Despite Trump stating he doesn't need China's "help" resolving the war, the White House has pressured Beijing to influence Iran to reopen the strait. China has maintained a "comprehensive strategic partnership" with Iran since 2016 and purchases more than 80% of its oil, though Xi is expected to limit China's role to mediation, consistent with its non-intervention foreign policy principle. The Future of US-China Relations: Strategic Adjustments and Long-term Planning For Beijing, the stakes are particularly high as its view of Trump has shifted from a "predictable transactional counterpart" to a "more action-oriented and harder-to-restrain opponent." Rather than securing immediate concessions, China's priority is "trying to adjust the current strategic position and negotiating pace that are unfavorable to it, and bring US-China interactions back into a framework that it can better control." Xi may also support Trump's plan to create a "Board of Trade" and "Board of Investment" to oversee US-China economic ties, as Beijing seeks predictability and certainty for the remainder of Trump's term through January 2029. This stability would allow China to plan its own economic policies with greater confidence, particularly regarding tariff levels and trade relationships.

The Cultural Phenomenon Returns On a chilly morning at a Silvertown studio behind London City airport, the sunburst intro to Jimmy Cliff's The Harder They Come is on repeat. Dancers run through a routine studded with reggae and dancehall moves. "Get high," commands associate choreographer Neisha-yen Jones with a smile. "Get low!" The ensemble rise and dip. They do the bogle and whine around each other as their watchful director Matthew Xia nods along. They circle Natey Jones who breaks out the opening line: "Well, they tell me of a pie up in the sky." In the distance, a plane leaves the ground. From Film to Theatrical Celebration It's eight months since The Harder They Come's full-throttle takeoff at Stratford East, where the musical was so popular that it is now returning for a second run which will also serve as a eulogy for Cliff who died in November. Playwright Suzan-Lori Parks' adaptation of Perry Henzell's 1972 Jamaican film is bolstered by a handful of her own songs as well as classics including Israelites and Wonderful World, Beautiful People – plus every number on the film's monumental soundtrack. Jones is reprising the role of Ivan (played on screen by Cliff and inspired by real-life outlaw Rhyging), who arrives in Kingston from the country and is dismissed and exploited, before becoming both a hit singer and a fugitive. The Evolution of a Cultural Narrative The original was akin to cinéma vérité, directly evoked spaghetti westerns and veered into blaxploitation territory; Ivan's tale has gained greater warmth, humour and protest spirit on stage. It was the best musical I saw in 2025. "The story is a tragedy but the theatrical event is a celebration," says Xia of his production. Twenty years ago, the film was adapted as a musical with a book by Henzell, also at Stratford East. "It all started at Ivan's Nine Night," Xia recalls. "There was a massive poster of Ivan on the wall, with everyone coming, and it was told in retrospect with vignettes." Choreography and Cultural Connection Shelley Maxwell, recently arrived from Jamaica, was watching the musical in the audience one night and has since become the choreographer of the new production. She has fused the folk dance forms of revivalism and pocomania, learned in her childhood, with reggae, dancehall and moves that today's teenagers can recognise. "I wanted to tap into the youth market," she says. It's brought some enthusiastic feedback from audience members who may not know the film. "Like: 'Oh my God, they did that step I always do at a party!' It allows them to form a connection." Authenticity and Cultural Representation Xia, wearing trainers in the Jamaican flag's colours, and Maxwell, whose tracksuit has the same black, green and gold trim, were intent on instantly transporting their audience to Kingston. The opening, says the director, is an "establishing shot" with characters coming and going on Simon Kenny's magnificent multi-level set, accompanied by Toots and the Maytals' hit Funky Kingston. To borrow from its lyrics, you really can believe everything they do. Even each move in the dominoes game we see is scripted, explains Maxwell, who mapped out the market scene with precision: "Where are you going to? How heavy is the item that you're holding? This is the swing of the hips." Social Commentary Through Performance Xia, whose father came to England from Jamaica in the 1970s, praises the freewheeling realism of the film. "Lots of the background performers are just whoever happened to be in the market that day, or walking through the shantytown. Lots of the actors were people that Perry knew, they had no training." Henzell, says Xia, showed "the part of Jamaica that had always been hidden, people living hand to mouth". The musical depicts a "quartet of oppression" against Ivan, as he takes a stand against individuals representing hypocrisies of the church, law, drugs trade and music industry. Universal Themes and Contemporary Relevance The Harder They Come was both a pioneering example of independent film-making for Jamaicans and a portrait of a newly independent country. Maxwell, who grew up glued to Hollywood musicals, says it was empowering to discover a film full of the Jamaican songs she loved. "I was probably way too young when I saw it. But what I saw was the world around me." She traces how different forms of music played a pivotal part in the country establishing its identity, moving from African forms and American R&B; to mento, ska, rocksteady, reggae and the rise of Bob Marley and Jimmy Cliff. Maxwell captures that chain reaction with a tantalizing question: "What's this groove becoming?" Transforming the Narrative for Modern Audiences The musical also makes its hero's actions more understandable. "In the film, Ivan becomes a kind of wanton murderer," says Xia. In the musical, "he accidentally shoots a police officer when he's under threat, is remorseful, yet also knows that if he gives himself in then that's the end of his journey". Another significant change is the depth given to the principal women – Ivan's mother Daisy and Elsa, with whom he falls in love under the eye of her authoritarian guardian, the preacher. "The moral heart of the piece now resides in those two women," says Xia. Maxwell transforms a brief sequence from the film, in which Ivan imagines a tryst with the devout Elsa, into a floor-trembling set piece when the preacher's congregation lose their robes to indulge in lustful fantasy. The male gaze of the original scene is duly excised: "it had to be like it was both of them in partnership in that fantasy world," says Maxwell, who adds that the nature of dancehall – "grinding, gyrating on another body" required her to use her skillset as an intimacy director.

First Ascent: The Allure of Carn Ffoi’s Jagged EdgeThe Guardian’s Country Diary captures a solitary climber’s obsession with a dark, looming rock outcrop on the brow of a Pembrokeshire hill. From a modest “home away from home,” the author watches the storm‑washed landscape settle, the wind drying the volcanic stone and setting the stage for a daring bouldering session.On‑Ground Details: Route‑Finding Without a GuidebookWithout a phone or detailed topos, the climber relies on a hand‑drawn booklet of routes that proves indecipherable. Instead, he scouts a potential line on the lee side of the boulder, warms his fingers, and visualises the climb in his mind before committing to the overhanging block.Physical Metrics: Climb Length, Elevation Gain, and Weather ConditionsClimb height: approximately 4‑5 metres of vertical gain.Elevation gain from base to summit: ~12 m above sea level.Wind: post‑storm gusts around 15‑20 km/h, drying the rock surface.Temperature: mild coastal chill, roughly 12 °C.Why This Matters: Highlighting Remote Coastal Climbing in WalesThe piece underscores a growing niche of climbers seeking untouched tors along the Welsh coast. The volcanic geology offers a texture “rough as old bark,” while the surrounding landscape—sandy Trefdraeth Bay, gorse scrub, and distant fishing boats—provides a dramatic backdrop that differentiates these sites from inland crags.Looking Ahead: Future Exploration of Pembrokeshire’s TorsAfter topping the boulder, the author spots a freshly‑moulted adder, a reminder of the area’s rich biodiversity. The encounter, combined with the panoramic sea view, suggests that Pembrokeshire’s tors will continue to attract adventurous climbers and nature enthusiasts alike, encouraging more detailed route documentation and sustainable access initiatives.

The Leadership Challenge British Prime Minister Keir Starmer, fighting for his political survival after dozens of his own MPs called for him to resign, promised to press ahead with plans to reform the country before an expected meeting with his potential leadership rival Wes Streeting, the health secretary. Calls for Resignation Starmer has so far defied calls to quit from Labour MPs, who blame him for heavy losses in local elections last week and say he has failed to deliver reforms since coming to power in a landslide 2024 election victory. More than 80, or almost a quarter, of the prime minister's elected MPs have called for Starmer to go, and four junior ministers have resigned in protest. The Meeting with Streeting The meeting in Downing Street will take place before King Charles gives a speech at the opening of parliament – a grand ceremony led by him and used by the government to set out its political priorities and legislative agenda for the year ahead. A public statement is not expected to follow the Streeting-Starmer meeting to keep the attention on the speech, according to British media reports. The Future of Starmer's Leadership Despite the turmoil, Starmer will take part in parliament's grand opening on Wednesday. He said in a statement on Tuesday evening: 'Britain stands at a pivotal moment: To press ahead with a plan to build a stronger, fairer country or turn back to the chaos and instability of the past.' The implementation of the government's plans remains uncertain, and if Starmer were to be removed, his successor would not be bound to follow the same plan.

The World's Longest Football DerbyCarlisle and Barrow will play each other next season in the Cumbrian derby in the National League. The clubs are located at opposite ends of Cumbria and the distance between the two grounds is some 78 miles by car. But this is not the greatest distance between two teams involved in a 'derby'.When considering derbies, we are looking for matches between teams that are linked based upon their proximity or geography, rather than simply historical rivalries like the 'clásico' between Real Madrid and Barcelona.UK Derbies: The Cumbrian ContenderWithin the UK, the Cumbrian derby certainly looks the furthest derby by distance. If we are staying in England, the closest we can get to 78 miles is the A49 derby between Shrewsbury Town and Hereford United, separated by 51 miles, although it should be said that the two teams have not met since the latter was dissolved in 2014.In England, thoughts immediately go to Crystal Palace and Brighton, dubbed the M23 derby, but a quick search reveals that Selhurst Park is a mere 46 miles from the Amex Stadium. It is also 46 miles that separate the stadiums of Plymouth Argyle and Exeter City, the Devon derby. Just behind are Ipswich and Norwich – the East Anglian derby (AKA El Tractico or the Old Farm) – with Portman Road and Carrow Road 45 miles apart.International Long-Distance DerbiesFarther afield, we must mention the derby between Persib Bandung and Persija Jakarta, who take part in the Indonesia derby, or Laga Klasikal as it is locally known, with Persib's Gelora Bandung Lautan Api Stadium lying 108 miles away from Persija's Jakarta International Stadium in Indonesia's capital.Italy is fertile ground for a host of famous derbies, and it is here that we find some of the longest-distance derbies. Of course there is the Derby d'Italia between Milan and Juventus, with 85 miles separating San Siro and Juve's Allianz Arena in Italy's north-west. The Derby di Sicilia between Palermo and Catania spans a whopping 134 miles across the breadth of Sicily, while the Derby delle Isole (Derby of the Islands) between Palermo and Sardinian club Cagliari goes even further – a full 250 miles across the Tyrrhenian Sea.The Champion: New Zealand's 386-Mile DerbyOur winner, though, comes from New Zealand's North Island. With Auckland FC only entering the A-League Men in 2024-25, the New Zealand derby between themselves and Wellington Phoenix is still very much in its infancy but has already blossomed into something substantial. In February, just the sixth edition of the derby, a comical own goal from Wellington goalkeeper Josh Oluwayemi sparked a 5-0 thrashing by Auckland, prompting Phoenix coach Giancarlo Italiano to resign immediately after the defeat. With 386 miles between the two grounds, the NZD is our clear winner.The Evolution of Geographic DerbiesThe existence of such long-distance derbies challenges our traditional understanding of what constitutes a local rivalry. In an era where football has become increasingly globalized, these geographic matchups represent unique connections between communities separated by vast distances. The New Zealand derby, in particular, showcases how even in a country with a relatively small population, football can create intense rivalries across significant geographical divides.The Future of Long-Distance DerbiesAs football continues to evolve, we may see more long-distance derbies emerge, particularly in regions with expanding leagues or where new clubs are formed to serve underserved areas. The New Zealand derby between Auckland and Wellington Phoenix is a prime example of how modern football infrastructure and scheduling can create meaningful rivalries regardless of distance. With the increasing popularity of travel and fan engagement, these long-distance derbies may become even more significant in the future of football culture.Double Winners in FootballDeji Elerewe has won the title with both Bromley (League Two) and Lincoln (League One) this season. Has any other player managed the same feat?We covered this answer 10 years ago in a previous Knowledge, but regular contributor Dirk Maas has come in clutch with some additions, although he does clarify that he has limited his search to the top five leagues in Europe in this century.There are several examples of players winning titles with different teams in the same season, including:Jonas Urbig with Köln (2. Bundesliga) and Bayern Munich (Bundesliga) in 2024-25Leigh Griffiths with Celtic (Scottish Premiership) and Wolverhampton (League One) in 2013-14Urby Emanuelson with Ajax and Milan in 2010-11Daniel Amartey with Leicester City and FC Copenhagen in 2015-16Timothy Weah with Paris Saint-Germain and Celtic in 2018-19Khvicha Kvaratskhelia with Napoli and PSG in 2024-25There are also alternative cases where seasons happen at different times of year, such as David Beckham achieving this by picking up an MLS winner's medal with LA Galaxy and a Ligue 1 winner's medal with Paris Saint-Germain in 2012-13.

A Novel of Female Defiance"Yes, you will leave this place," the chorus of child protagonists in a community of sex workers say at the start of Tahmima Anam's incantatory and fiery new novel of female defiance, Uprising. "This story will save your life," we were told three times in Deepa Anappara's 2020 debut, also featuring precarious children dwelling in the margins. What is the distance between imagination and action, lived realities and dreams? How can solidarities be forged in such circumstances? Uprising holds within its pages some answers and a deep conviction – for a better life, a more just world – and then reaches out and fights for it.The Island Community and Its OppressionAs a journalist, Anam visited the infamous "floating brothel" Banishanta in Bangladesh; her new novel, set on an isolated island "at the end of the country, in the middle of a river that emptied into the sea", fictionalises the island's community and ecological precarity. Here, a generation of daughters grow up watching their mothers trapped in sex work – "we knew that the work was something that was paid for in money, and also in bodies" – and wish a different life for themselves. The women are controlled by the cruel Amma, who was once herself sold into sex trafficking. The victim becomes the perpetrator – and the children are discerning enough to know that their mothers are "not here because they had done something bad, but because something bad had been done to them". The first lesson of the island? No one is coming to save you – and living here changes you, as inexorably as the rising tides.The island is a prison. The mothers are ghosts of their former selves. The children, witnessing the "sexing", are all too grown up, stripped of their innocence. By the time they are born, their mothers' memories have faded "like paint in the sun"; they live on the island "tied to" their daughters. What, or who, will it take to break free from these chains?Feminism and Climate Crisis in LiteratureWhen the waters rise, customers stay away. The mothers speculate: "the swirling river was keeping the smaller boats from making the journey"; "the land was cursed". In a last-ditch attempt to lure men back for business, Amma sends for a new girl. Little does she know that Kusum Khan's arrival will signal the beginning of the end. A girl from the city with a history of participating in protests against the Dictator, she doesn't acquiesce to the island's rules, as the others have been conditioned to; instead, she sows the seeds for what will grow into a life-altering act of resistance. The children start to believe that she is their saviour – maybe even Bon Bibi, a legendary guardian of the forest. A different life seems graspable, just beyond the island's shore. When the titular uprising at last arrives, it summons an all-consuming storm, washing over the island. And the reader, too, is ready to join the revolution – their fist in the open air.Uprising is a feminist novel ("here they were: a wall of women") and a protest novel ("The moment Kusum entered the protest, she felt as if she was becoming a small organ in a living, breathing thing"). It is a coming-of-age novel, and a response to the climate crisis; a story of sisterhood protecting, and failing to protect; of structural inequality and the rotten core of patriarchal corruption; of unlucky women in an unfair world. "When the men came to reclaim the island, we stood rooted in place with our eyes closed, unable to watch. We stood rooted in place with our eyes open, unable to stop watching." While the mothers and daughters in Anam's fictional world are victims of specific generational violence, this observation can be applied to humanity at large: we are all watching – frozen, complicit – as injustices rise the world over.The Power of Rage and Radical HopeThrough her unwaveringly political and unflinchingly forthright novel, Anam shows the power of rage and radical hope. A new world can burn bright from the fires of injustice – and here, it's the mothers that hold the match.

The Escalating Crisis in Blue Nile StateRecent clashes in Sudan's Blue Nile State have triggered a mass displacement crisis, with thousands of civilians forced to abandon their homes amid escalating violence. The conflict, which has intensified in recent weeks, has created urgent humanitarian needs as families seek safety from the fighting.Humanitarian Impact and Displacement FiguresThe United Nations reports that over 15,000 people have been displaced in Blue Nile State alone since the beginning of this month, with many seeking refuge in neighboring areas or across the border into Ethiopia. The displacement crisis is straining already limited resources in host communities and creating conditions ripe for disease outbreaks and food insecurity.Regional Security ImplicationsThe conflict in Blue Nile State represents a significant challenge to regional stability, with potential spillover effects into neighboring countries. The fighting involves multiple armed groups and has complicated efforts to establish a lasting peace in Sudan, which has been grappling with various conflicts since the country's independence.International Response and Future OutlookInternational humanitarian organizations are struggling to access affected areas due to security concerns and bureaucratic obstacles. The coming weeks will be critical in determining whether the conflict can be de-escalated and whether displaced populations can return to their homes safely, or if the crisis will further deepen, potentially leading to even larger displacement and increased humanitarian needs.