EARTHQUAKES

Researchers categorize foreshocks for large earthquakes

Seismologists agree that foreshocks are the most widely identified signal of an upcoming mainshock earthquake. But do these foreshock sequences have distinctive characteristics that...

How an earthquake becomes a tsunami

The movement between continental and oceanic plates at the bottom of the sea, so-called megathrust earthquakes, generates the strongest tremors and the most dangerous...

Largest earthquake in 120 years rattles Melbourne

Melbourne was shaken Sunday by a rare and shallow earthquake – the largest earthquake to hit the Australian city in over a century –...

Researchers reveal impact of ancient earthquake

By combining the scientific powerhouses of genetics and geology, University of Otago researchers have identified a new area of coastal uplift, which had been...

7.7 magnitude earthquake causes small tsunami on South Pacific islands

A 7.7 magnitude earthquake caused a small tsunami to wash ashore on South Pacific islands Friday. No damage has been reported, and the threat...

Japan earthquake of magnitude 6.5 injures some, damages buildings

An earthquake with a magnitude of 6.5 struck on Friday off Japan's western prefecture of Ishikawa, authorities said, as media reported some buildings had...

Rougher faults may generate more earthquake aftershocks

When an earthquake hits, it is rarely an isolated event. Foreshocks precede quakes, and aftershocks follow them. To quantify seismic hazards, scientists must disentangle...

Santorini is located in a volcanic zone, geologists warn of another eruption

The beauty of the Greek island of Santorini is actually the result of the area's violent volcanic history and was created by one of...

Magnitude 7.1 quake hits remote Pacific, no tsunami threat

A magnitude 7.1 quake struck in a remote part of the Pacific Ocean on Monday but did not appear to generate a tsunami. The quake...

Separating mining explosions from earthquakes in South Korea

South Korea is a relatively quiet country, seismically speaking, but a recent study identified more than 182,000 small seismic events—135,000 of which were related...

Turkey’s next quake: Research shows where, how bad—but not ‘when’

Researchers know a lot about Turkey's next major earthquake. They can pinpoint the probable epicenter, estimate its strength and see the spatial footprint of...

Pre-Columbian tsunami deposit revealed in a core taken in mangrove pond at East Bajura, Puerto Rico. Credit: Bruce Jaffe

Tsunami deposits identified in a coastal mangrove pond in Northwest Puerto Rico could have come from a megathrust earthquake at the Puerto Rico Trench...

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