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The Northridge Earthquake was the subject of the 1995 film Epicenter U., a first-hand account of healing from the natural disaster, directed by Alexis Krasilovsky. [71] [72] The Earthquake Haggadah (1995) was a video excerpt from Epicenter U. narrated by Wanda Coleman. Distributed in 3/4" and VHS by the Poetry Film Workshop circa 1998.
Peak ground acceleration can be expressed in fractions of g (the standard acceleration due to Earth's gravity, equivalent to g-force) as either a decimal or percentage; in m/s 2 (1 g = 9.81 m/s 2); [7] or in multiples of Gal, where 1 Gal is equal to 0.01 m/s 2 (1 g = 981 Gal).
Multiple notable earthquakes have struck the United States this year, including a powerful quake in California and a historic event on the East Coast earlier in 2024. Strong earthquakes can lead ...
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 .
The final result gives a 'chance' of exceeding a given value over a specified amount of time. Standard building codes for homeowners might be concerned with a 1 in 500 years chance, while nuclear plants look at the 10,000 year time frame. A longer-term seismic history can be obtained through paleoseismology.
The depth of the event. The distance from the source event. Site response due to local geology; Site response is especially important as certain conditions, such as unconsolidated sediments in a basin, can amplify ground motions as much as ten times. Isoseismal map for the 1968 Illinois earthquake, showing the extent of different levels of ...
By RYAN GORMAN A massive earthquake that struck the Bay Area on October 17, 1989 forever changed the region, and potentially altered the course of baseball history. The 6.9-magnitude Loma Prieta ...
The 1971 San Fernando earthquake (also known as the 1971 Sylmar earthquake) occurred in the early morning of February 9 in the foothills of the San Gabriel Mountains in southern California. The unanticipated thrust earthquake had a magnitude of 6.5 on the M s scale and 6.6 on the M w scale, and a maximum Mercalli intensity of XI ( Extreme ).