Earthquake

The impact of earthquakes is relatively local, but the tsunamis they can generate may cause devastation far away.

On December 27, 1722, an earthquake, possibly of M7.8, devastated the Algarve region of southern Portugal.

The central and eastern U.S. have fewer earthquakes than the West but have areas with high risk.

Chile occupies 6,435 km of coastline on the west coast of South America along the Circum-Pacific Belt.

The highest earthquake hazard in the continental U.S. is largely associated with California.

Aristotle believed that earthquakes were the result of air escaping violently from subterranean caves.

A new AIR white paper provides an overview of the main scientific developments in earthquake ground shaking hazard science.

The USGS has announced the 2023 release of a 50-state update to their National Seismic Hazard Model.

Japan lies in one of the world’s most seismically active regions, with significant earthquakes each century.

The year 1356 may seem a long time ago, but in terms of the geologic time scale, it is very recent.