A 2022 satellite photo shows smoke rising from a caldera on Tofua, highlighting the "looming threat" of the volcanic island.

This week, it makes far more sense to test an aspect of our tsunami system that didn’t perform very well last December — who ...

The maps, updated with new data and modeling, show the potential inland reach of a tsunami in a worst-case scenario. Areas of concern include Alameda, Monterey, and San Mateo counties, where ...

Lake Tahoe is unlike other natural resources when it comes to management and stewardship. The 500-mile watershed spans two states, five counties and a city. More than 50 years ago, Congress ...

We’re learning how an escalating trade war is impacting industries at home. Canada is the largest buyer of California wine. And local winemakers are feeling the impact of tariff threats from the ...

A magnitude 6.7 earthquake off the coast of New Zealand's South Island has sparked fears of a possible tsunami. The earthquake struck at 2.42pm (NZDT) on Tuesday at a depth of 12km about 160km ...

Changbaishan volcanism and clustered deep-focus earthquakes in northeast China are driven by the dynamic morphology of the subducted Pacific slab, which is induced by its local penetration into ...

Dec. 13, 2024 — Tsunamis can cause immense physical damage to ports, but the economic cost does not stop there. The resultant disruptions of shipping lanes result in billions of dollars in ...

"AVO continues monitoring activity at Mount Spurr for signals indicating that the volcano is moving closer to an eruption," the AVO said in an update on its website. "Based on previous eruptions, ...

Jan. 10, 2025 — A new study based on the sampling and analysis of volcanic ash at Cumbre Vieja volcano in the Canary Islands, located off Africa's northwest coast, suggests that the composition ...