搜尋結果
A scenario of a magnitude 9.0 earthquake on the Cascadia subduction zone by the United States Geological Survey. The geological record reveals that great earthquakes with moment magnitude 8 or higher occur in the Cascadia subduction zone about every 500 years on average, often accompanied by tsunamis.
July 1986 was an unusually active month for moderate to strong earthquakes in California, with three events occurring in less than two weeks. Each had mild to moderate effects and began on July 8 with the event near Palm Springs. The second event was a Ms 5.8 shock that occurred off the coast of Oceanside on July 13.
On 11 March 2011, at 14:46 JST (05:46 UTC), a Mw 9.0–9.1 undersea megathrust earthquake occurred in the Pacific Ocean, 72 km (45 mi) east of the Oshika Peninsula of the Tōhoku region. It lasted approximately six minutes and caused a tsunami.
An earthquake is the shaking of the surface of Earth resulting from a sudden release of energy in the lithosphere that creates seismic waves. Earthquakes may also be referred to as quakes, tremors, or temblors. The word tremor is also used for non-earthquake seismic rumbling.
The Ring of Fire (also known as the Pacific Ring of Fire, the Rim of Fire, the Girdle of Fire or the Circum-Pacific belt) [note 1] is a tectonic belt of volcanoes and earthquakes. It is about 40,000 km (25,000 mi) long [1] and up to about 500 km (310 mi) wide, [2] and surrounds most of the Pacific Ocean.
Overview. This earthquake's epicenter was in the Maruyama River estuary. [9] According to the Japanese government 's official report, there were 428 fatalities, 1,016 injuries, 7,863 buildings destroyed, and 45,659 houses damaged by collapse or fire. [10] . This quake caused extensive damage to the town of Toyooka and the Maruyama River area.
The 2004 Indian Ocean earthquake was unusually large in geographical and geological extent. An estimated 1,600 km (1,000 mi) of fault surface slipped (or ruptured) about 15 m (50 ft) along the subduction zone where the Indian Plate slides under (or subducts) the overriding Burma Plate.
