1969 earthquake

Only magnitude 6.0 or greater earthquakes appear on the list. The most recent moderate-size earthquake before October 1969 was a magnitude 4.6 shock on April 25, 1965, in nearly the same place. The lack of casualties and the low number of injuries is ascribed to the earthquakes being in the evening, when there were few pedestrians in the streets.Following the relatively high level of damage caused by the 1969 earthquakes, the city set about retrofitting buildings to improve their earthquake resistance by adding for instance cross-bracing to unreinforced masonry structures. At the time they were the l The safety standards adopted in Santa Rosa in 1970 provided a model for other cities in California when the state brought in requirements for retrofitting.An analysis of the effects on structures in Santa Rosa showed that it was necessary to design buildings using dynamic principles rather than just static, even in the case of a moderate intensity earthquake. Its epicenter was determined as 37.4°N, 81.0°W, just west of the town of Elgood, West Virginia, and some 12 kilometers north of the Virginia-West Virginia border. The earthquake was estimated to have a magnitude of 6.3 The main-shock was followed by a long series of aftershocks. Siyavuya Mzantsi …

At 04:56 and 06:19 UTC on October 2, 1969, a pair of earthquakes of magnitude 5.6 and 5.7, respectively, struck the city of Santa Rosa, California, killing one person and damaging buildings.
The safety standards adopted in Santa Rosa in 1970 provided a model for other cities in California when the state brought in requirements for retrofitting.An analysis of the effects on structures in Santa Rosa showed that it was necessary to design buildings using dynamic principles rather than just static, even in the case of a moderate intensity earthquake. The lack of casualties and the low number of injuries is ascribed to the earthquakes being in the evening, when there were few pedestrians in the streets.Following the relatively high level of damage caused by the 1969 earthquakes, the city set about retrofitting buildings to improve their earthquake resistance by adding for instance cross-bracing to unreinforced masonry structures. The $8.35 million cost of the earthquakes went mostly to replace buildings damaged beyond repair. The largest aftershock occurred nearly six months later on April 14 1970 and had a magnitude of 5.7 MDamage was particularly severe in the towns of Ceres, Tulbagh, Wolseley and The earthquake severely affected Church Street in Tulbagh, which was renowned for its 18th to 20th-century buildings in The buildings in Church Street were restored, initially by the National Committee for the Restoration of Historic Buildings in Tulbagh and its Environment, and later by the Tulbagh Valley Heritage Foundation. In total, thirteen people died. The first buildings to be retrofitted were the St. Rose Church and Parish hall due to their high level of occupancy and lack of reinforcing. In total, thirteen people died. At about 10:04pm on 29 September 1969, the Boland farming towns of Tulbagh, Wolseley and Ceres experienced the most destructive earthquake in South African history. The maximum felt intensity for the two events was VII and VIII respectively on the Mercalli intensity scale. It had a magnitude of 6.3 M w and a maximum felt intensity of VIII (Severe) on the Modified Mercalli intensity scale.It caused widespread damage in the towns of Ceres, Tulbagh and Wolseley and led to 12 deaths. The largest aftershock occurred nearly six months later on April 14 1970 and had a magnitude of 5.7 MDamage was particularly severe in the towns of Ceres, Tulbagh, Wolseley and The earthquake severely affected Church Street in Tulbagh, which was renowned for its 18th to 20th-century buildings in The buildings in Church Street were restored, initially by the National Committee for the Restoration of Historic Buildings in Tulbagh and its Environment, and later by the Tulbagh Valley Heritage Foundation. The epicentre of the earthquake was situated in Saron, a region near Tulbagh. [i] The epicentre of the earthquake was situated in Saron, a region near Tulbagh. M/S damaged building, pan down to street showing rubble. The 1969 Tulbagh earthquake occurred at 20:03:33 UTC on 29 September.

No title - Second earthquake hits Banja Luka. Includes a short press conference by Police Chief Melvin (Dutch) Flohr, images of downtown and residential damage and the cleanup at the Fourth street Safeway. [i] The epicentre of the earthquake was situated in Saron, a region near Tulbagh. This is a list of earthquakes in 1969. United States Earthquakes, 1969 earthquake occurs, participating observa­ tories telephone or telegraph observations to the National Meteorological Center at Suitland, Md. It caused widespread damage in the towns of Ceres, Tulbagh and Wolseley and led to 12 deaths.

The earthquake was a result of strike-slip faulting along a NW-SE trending near vertical fault plane, as shown by the focal mechanism and the distribution of aftershocks. At 04:56 and 06:19 UTC on October 2, 1969 (21:56 and 23:19 PDT October 1), a pair of earthquakes of magnitude 5.6 and 5.7, respectively, struck the city of Santa Rosa, California, killing one person and damaging buildings.

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