When the plate sinks into the mantle it melts to form magma. The pressure of the magma builds up beneath the Earth's surface. The magma escapes through weaknesses in the rock and rises up through a ...

When tens of thousands of earthquakes shook Santorini, the cause wasn’t just shifting tectonic plates—it was rising magma. Scientists tracked about 300 million cubic meters of molten rock pushing up ...

In the three years since, HVO and the USGS earthquake hazards program continue to actively assess the region for local volcanic and earthquake activity. All volcanoes in American Samoa are currently ...

Reporter When the sixth-strongest earthquake ever recorded hit Russia’s Kamchatka Peninsula last week, it triggered tsunami warnings around the world as waves rippled across the Pacific as far as the ...

Klyuchevskoy volcano in eastern Russia began erupting shortly after a powerful 8.8 magnitude earthquake and several aftershocks shook the same area. "A descent of hot lava is observed on the western ...

The USGS Hawaiian Volcano Observatory detected an increase in shallow seismicity and localized ground deformation beneath the south rim of Halema‘uma‘u crater, in Kilauea summit’s south caldera region ...