Kikai caldera supervolcano shows signs of magma recharge

Researchers have found that the magma reservoir beneath Japan's Kikai caldera, site of the Holocene's largest eruption 7,300 years ago, is refilling with newly injected magma. Using underwater seismic imaging, a team led by Kobe University's Nobukazu Seama mapped the reservoir and linked it to the ancient event. The discovery offers insights into how such systems rebuild after massive eruptions.

Far beneath the ocean near Japan, scientists have mapped a large magma-rich zone under the Kikai caldera. The reservoir matches the one responsible for the most powerful eruption of the Holocene, which occurred 7,300 years ago. Kobe University geophysicist Nobukazu Seama stated, 'Due to its extent and location it is clear that this is in fact the same magma reservoir as in the previous eruption.'

相关文章

Niigata Governor Hideyo Hanazumi announces restart of Kashiwazaki-Kariwa nuclear plant at press conference, with facility image projected behind.
AI 生成的图像

Niigata approves restart of world's largest nuclear plant

由 AI 报道 AI 生成的图像

Niigata Governor Hideyo Hanazumi approved the restart of the world's largest nuclear plant, the Kashiwazaki-Kariwa facility, on Friday. This marks the first restart for operator TEPCO since the 2011 Fukushima disaster. The move supports Japan's goals to reduce fossil fuel reliance and achieve carbon neutrality.

A massive influx of magma beneath Santorini caused over 28,000 earthquakes in early 2025, according to a new study. Researchers used advanced AI and seafloor sensors to track the molten rock's movement. The findings reveal a previously unknown connection between Santorini and the nearby underwater volcano Kolumbo.

由 AI 报道

Researchers observing Jupiter's moon Io detected five simultaneous volcanic eruptions at the end of 2024, releasing vast amounts of lava and hinting at an interconnected magma network beneath the surface. The event, captured by NASA's Juno spacecraft, spanned 65,000 square kilometers and exceeded previous eruptions in energy. This discovery challenges existing models of Io's interior and offers insights into early Earth's volcanic activity.

Scientists have used swarms of minuscule earthquakes to map a hidden and intricate tectonic structure beneath northern California. This region, at the intersection of the San Andreas fault and the Cascadia subduction zone, involves five moving pieces rather than the expected three. The findings help explain past seismic events and improve hazard predictions.

由 AI 报道

Researchers from the Institut de Physique du Globe de Paris and GFZ Helmholtz Centre have created a Jerk detection method that identifies subtle ground movements from magma intrusions using a single broadband seismometer. Tested over a decade at Piton de la Fournaise on La Réunion, the system forecasted 92% of 24 eruptions between 2014 and 2023, providing warnings from minutes to eight hours ahead. About 14% of alerts detected magma movements without resulting eruptions.

马荣火山自1月初以来活动加剧,1月6日警戒级别从元旦设定的2级提高至3级,1月10日熔岩穹顶崩塌,沿多条沟谷产生发光火山碎屑流和熔岩。阿尔拜省超过4000名居民因风险升高已被疏散。

由 AI 报道

继青森县东部海岸外发生里氏7.5级地震后,日本针对北海道至千叶182个自治体发布了史上首次巨震警报。该警报持续一周,敦促居民做好立即疏散准备。虽然一些养老设施表示已做好准备,但其他设施对应对措施表示不确定。

 

 

 

此网站使用 cookie

我们使用 cookie 进行分析以改进我们的网站。阅读我们的 隐私政策 以获取更多信息。
拒绝