搜尋結果
Background. The history of earthquake investigations in California has been largely focused on the San Andreas Fault system because of its strong influence in the state as the boundary between the Pacific Plate and the North American Plate; it is the most studied fault on Earth.
- 63 killed, 3,757 injured
- $5.6–6 billion (equivalent to $13.2–14.2 billion today)
Earthquakes. The July 2019 Ridgecrest earthquakes consist of three main shocks of magnitudes 6.4, 5.4, and 7.1, each followed by a flurry of aftershocks of substantially lower magnitude. The aftershocks of the Ridgecrest earthquakes reveal two fault zones.
- $5.3 billion
- Strike-slip
The 2014 South Napa earthquake occurred in the North San Francisco Bay Area on August 24 at 03:20:44 Pacific Daylight Time. At 6.0 on the moment magnitude scale and with a maximum Mercalli intensity of VIII ( Severe ), the event was the largest in the San Francisco Bay Area since the 1989 Loma Prieta earthquake.
Geology. The quake originally was believed to have occurred on the Laguna Salada Fault, which is about 60 kilometers (37 mi) to 80 km (50 mi) long and straddles the California–Baja California border. [6] . The active Laguna Salada Fault ruptured in February 1892 with an estimated Mw 7.2 earthquake. [7] [8]
2008 Sichuan earthquake - Wikipedia. Coordinates: 31.021°N 103.367°E. The USGS provided a map of Asia in May 2008, which showed a total of 122 earthquakes occurring on the continent. The large red square near the center of the map depicts the 7.9 magnitude Chengdu quake in the Sichuan province.
Fault zones. Northern. A map displaying each of the seven major faults in the San Francisco Bay Area, and the probability of an M6.7 earthquake or higher occurring on each fault between 2003 and 2032.
It lasted approximately six minutes, causing a tsunami. It is sometimes known in Japan as the " Great East Japan Earthquake " (東日本大震災, Higashi nihon daishinsai), among other names. [en 1] The disaster is often referred to by its numerical date, 3.11 (read san ten ichi-ichi in Japanese). [30] [31] [32]