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|mapsize = |caption = |date = December 4, 1948 |origintime = 〔 |duration = |magnitude = 6.3 ML |depth = 〔 |location = 〔 |type = Strike-slip 〔 |countries affected = Coachella Valley Southern California United States |damage = |intensity = VII (''Very Strong'') 〔 |PGA = |landslide = Yes (Indio Hills) 〔 |casualties = Several injured }} The 1948 Desert Hot Springs earthquake occurred on December 4 at 3:43 p.m. Pacific Standard Time with a Richter magnitude of 6.3 and a maximum Mercalli Intensity of VII (''Very Strong''). The shock was felt from the central coast of California in the north, and to Baja California in the south, and came at a time when earthquake research in southern California was being resumed following the Second World War. It was one of two events in the 20th century that have occurred near a complex region of the southern San Andreas Fault System where it traverses the San Gorgonio Pass and the northern Coachella Valley. Damage was not severe, but some serious injuries occurred, and aftershocks continued until 1957. == Preface == The United States' involvement in World War II brought about a lapse in earthquake research in California, due to scientists and other technicians being assigned defense-related work, and the ongoing process of using earthquake records to establish their epicenters eventually came to end. The Seismological Society of America cancelled their annual meetings and their ''Bulletin'' was reduced to half its normal size. Following the war, work resumed at the Caltech and Berkeley labs detecting local earthquakes to determine the location of active faults. By 1948, seismologist Charles Richter had determined that areas where small earthquakes were occurring did not necessarily mean that a stronger shock would take place at the same location in the future. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「1948 Desert Hot Springs earthquake」の詳細全文を読む スポンサード リンク
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