Scientists have for the first time shown a link between intensifying climate events and tectonic plate movement in findings that could provide a valuable insight into why huge tremors occur.
Understanding why plates change direction and speed is key to unlocking huge seismic events such as last month’s Japan earthquake, which shifted the Earth’s axis by several centimeters, or February’s New Zealand quake.
An Australian-led team of researchers from France and Germany found that the strengthening Indian monsoon had accelerated movement of the Indian plate over the past 10 million years by a factor of about 20 percent.
Researcher Giampiero Iaffaldano said yesterday that although scientists have long known that tectonic movements influence climate by creating new mountains and sea trenches, his study was the first to show the reverse.
“The closure or opening of new ocean basins or the build of large mountain bands like the Andes or Tibet itself, those are geological processes that affect the pattern of climate,” said Iaffaldano, an earth scientist with the Australian National University.
“We are showing for the first time that the opposite also is true, that the pattern of climate is then able to affect back in a feedback mechanism the motion of tectonic plates,” he said.
Iaffaldano stressed that his study did not mean that global warming would translate to stronger earthquakes happening more often, with the relevant patterns developing over “the order of millions of years.”
“Of course earthquakes do occur at the boundaries between plates because of plate motions, but our work doesn’t imply at all that we will see an increase in these types of events,” he said.
Iaffaldano collaborated with Universite de Rennes geoscientist Laurent Husson and Hans-Peter Bunge from Munich’s LMU university on the study, which was recently published in the Earth and Planetary Science Letters journal.
A humanoid robot that won a half-marathon race for robots in Beijing on Sunday ran faster than the human world record in a show of China’s technological leaps. The winner from Honor, a Chinese smartphone maker, completed the 21km race in 50 minutes and 26 seconds, said a WeChat post by the Beijing Economic-Technological Development Area, also known as Beijing E-Town, where the race began. That was faster than the human world record holder, Ugandan Jacob Kiplimo, who finished the same distance in about 57 minutes in March at the Lisbon road race. The performance by the robot marked a significant step forward
Four contenders are squaring up to succeed Antonio Guterres as secretary-general of the UN, which faces unprecedented global instability, wars and its own crushing budget crisis. Chile’s Michelle Bachelet, Argentina’s Rafael Grossi, Costa Rica’s Rebeca Grynspan and Senegal’s Macky Sall are each to face grillings by 193 member states and non-governmental organizations for three hours today and tomorrow. It is only the second time the UN has held a public question-and-answer, a format created in 2016 to boost transparency. Ultimately the five permanent members of the UN’s top body, the Security Council, hold the power, wielding vetoes over who leads the
An earthquake registering a preliminary magnitude of 7.7 off northern Japan on Monday prompted a short-lived tsunami alert and the advisory of a higher risk of a possible mega-quake for coastal areas there. The Cabinet Office and the Japan Meteorological Agency said there was a 1% chance for a mega-quake, compared to a 0.1% chance during normal times, in the next week or so following the powerful quake near the Chishima and Japan trenches. Officials said the advisory was not a quake prediction but urged residents in 182 towns along the northeastern coasts to raise their preparedness while continuing their daily lives. Prime
South Korea’s air force yesterday apologized for a 2021 midair collision involving two fighter jets, a day after auditors said the pilots were taking selfies and filming during the flight and held them responsible for the accident. “We sincerely apologize to the public for the concern caused by the accident that occurred in 2021,” an air force spokesman told a news conference, adding that one of the pilots involved had been suspended from flying duties, received severe disciplinary action and has since left the military. The apology followed a report released on Wednesday by the South Korean Board of Audit and Inspection,
RSS