The El Tocuyo, Venezuela, earthquake of 3 August, 1950: focal parameters and tectonic implications
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| Natura: | Artículo científico |
| Lingua: | en |
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Universidad Nacional Autónoma de México
2001
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| _version_ | 1866814312153088000 |
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| author | José E. Choy |
| author_facet | José E. Choy |
| contents | The El Tocuyo, Venezuela, earthquake of 3 August, 1950: focal parameters and tectonic implications José E. Choy Ciencias de la Tierra Andean tectonic focal parameters El Tocuyo earthquake The El Tocuyo earthquake of 1950 event was associated with the Boconó fault system. The Ms magnitude was 6.3; the focaldepth was ( from pP P and sP P) 18 ± 1 Km. The focal mechanism was strike-slip with the nodal planes as follows:Plane Strike Dip SlipA 206 72 -166B 112 77 -19Nodal plane A was the fault plane, which corresponds to right-hand strike-slip faulting. No surface rupture has been reported.The epicenter is located in an area limited by the Boconó and Carache faults, and that includes the town of Carora. Allpublished mechanisms for events with mb > 5.0 in this area correspond to strike-slip faulting. However, southeast of this area, theBoconó fault borders on a reverse faulting regime associated with the southern Andean foothills. The partitioning of faultingdiffers from other areas of the Mérida Andes. Most seismic activity in the region is confined to the upper 18 km of the crust. Strikeslipevents with mb > 5.0 tend to nucleate at depths of 16 20 km. The depth of the seismogenic zone for strike- slip faults mayreach to 18 km or more. 2001 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56840404 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.40 |
| format | Artículo científico |
| id | redalyc_56840404 |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | The El Tocuyo, Venezuela, earthquake of 3 August, 1950: focal parameters and tectonic implications José E. Choy Ciencias de la Tierra Andean tectonic focal parameters El Tocuyo earthquake The El Tocuyo, Venezuela, earthquake of 3 August, 1950: focal parameters and tectonic implications José E. Choy Ciencias de la Tierra Andean tectonic focal parameters El Tocuyo earthquake The El Tocuyo earthquake of 1950 event was associated with the Boconó fault system. The Ms magnitude was 6.3; the focaldepth was ( from pP P and sP P) 18 ± 1 Km. The focal mechanism was strike-slip with the nodal planes as follows:Plane Strike Dip SlipA 206 72 -166B 112 77 -19Nodal plane A was the fault plane, which corresponds to right-hand strike-slip faulting. No surface rupture has been reported.The epicenter is located in an area limited by the Boconó and Carache faults, and that includes the town of Carora. Allpublished mechanisms for events with mb > 5.0 in this area correspond to strike-slip faulting. However, southeast of this area, theBoconó fault borders on a reverse faulting regime associated with the southern Andean foothills. The partitioning of faultingdiffers from other areas of the Mérida Andes. Most seismic activity in the region is confined to the upper 18 km of the crust. Strikeslipevents with mb > 5.0 tend to nucleate at depths of 16 20 km. The depth of the seismogenic zone for strike- slip faults mayreach to 18 km or more. 2001 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56840404 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.4 Vol.40 |
| title | The El Tocuyo, Venezuela, earthquake of 3 August, 1950: focal parameters and tectonic implications |
| topic | Ciencias de la Tierra Andean tectonic focal parameters El Tocuyo earthquake |
| url | https://www.redalyc.org/articulo.oa?id=56840404 |