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UTC time: 1868-10-21 15:53: USGS-ANSSComCat: Local date: October 21, 1868 (): Local time: 07:53 [1]: Magnitude: 6.3–6.7 M w [2]: Epicenter: 3]: Fault: Hayward Fault Zone: Type: Strike-slip: Areas affected: San Francisco Bay Area California United States: Total damage: $350,000 / Moderate [4]: Max. intensity: MMI IX (Violent) [3]: Casualties: 30 [3]: Damaged building in Hayward (top) and at ...
Published by: University of California Press, DOI: 10.2307/3636627; Uzes, Francois D. 1977. Chaining the Land, A History of Surveying in California, chapter 6. Landmark Enterprises Inc. Fields, James R., Forest Land Surveyor, Shasta-Trinity National Forest, The Benson Surveys, 9071 3835. Engineering Field Notes: Volume 22 Issue September ...
A 9.3 magnitude quake off Alaska, that would be the worst-case for San Francisco,” Adrienne Bechelli, deputy director of San Francisco’s Department of Emergency Management, told ABC7 at the time.
The Central Pacific survey followed between the 37th parallel north and 39th parallel north from St. Louis, Missouri to San Francisco, California. This survey was led by Lt. John W. Gunnison until his death by the Utes in Utah. Lt. Edward Griffin Beckwith then took command.
The tremor occurred just after 7 a.m. local time, according to the U.S. Geological Survey. It was felt throughout the Bay Area, as far south as San Jose, according to the USGS shake map.
Early survey of San Mateo Creek in 1856. After discovering San Francisco Bay from Sweeney Ridge on November 4, 1769, the Portolà expedition descended what Portolà called the Cañada de San Francisco, now San Andreas Creek (or possibly San Mateo Creek). "Laguna Grande" is where the party camped (now covered by the Upper Crystal Springs Reservoir).
It is a part of the Volcano Hazards Program of the United States Geological Survey, a scientific agency of the United States government. [ 2 ] Originally, the volcano observatory was known as the Long Valley Observatory which monitored volcanic activity east of the Sierra Nevada in Mono County, California which included Long Valley Caldera ...
San Francisco, [23] officially the City and County of San Francisco, is a commercial, financial, and cultural center within Northern California.With a population of 808,988 residents as of 2023, [14] San Francisco is the fourth-most populous city in the U.S. state of California behind Los Angeles, San Diego, and San Jose, and the 17th most populous in the US.