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The 1811–1812 New Madrid earthquakes were a series of intense intraplate earthquakes beginning with an initial earthquake of moment magnitude 7.2–8.2 on December 16, 1811, followed by a moment magnitude 7.4 aftershock on the same day. Two additional earthquakes of similar magnitude followed in January and February 1812.
The 1812 San Juan Capistrano earthquake, also known simply as the Capistrano earthquake or the Wrightwood earthquake, [6] occurred on December 8 at 15:00 UTC (07:00 local time) in Alta California. At the time, this was a colonial territory of the Spanish Empire .
The group was underwater when a 7.2 magnitude earthquake and string of aftershocks shook the country, the videographer said. Watch scuba divers grab onto reef as swarm of underwater earthquakes ...
People watch the ocean after a powerful earthquake struck off the coast near Ocean Beach, in San Francisco, California, U.S., December 5, 2024. The word tsunami comes from the Japanese for "harbor ...
The 1812 Ventura earthquake (also known as the Santa Barbara earthquake) occurred on the morning of December 21 at 11:00 Pacific Standard Time (PST). The M w 7.2 earthquake was assigned a with a maximum Modified Mercalli intensity of X ( Extreme ). [ 2 ]
Aftershocks from devastating earthquakes in the 1800s near the Missouri-Kentucky border and in Charleston, South Carolina, may still be occurring, a study found.
A controlled mine (at left), with the distribution box that connected it and the other mines in its group to the mine casemate on shore. Unlike naval mines that are dispersed at sea, the controlled mine field location is chosen so that it could be under observation. The exact location of the mines was required so that they could be fired from ...
The 1812 Caracas earthquake took place in Venezuela on March 26 (on Maundy Thursday) at 4:37 p.m. It measured 7.7 on the Richter scale. [citation needed] It caused extensive damage in Caracas, La Guaira, Barquisimeto, San Felipe, and Mérida. An estimated 15,000–20,000 people perished as a result, in addition to incalculable material damage.