Seismological evidence of simultaneous mountain-building and crust-thickening 7.6)
... generated by the Chi-Chi earthquake sequence shows a typical orogenic two-fold process that occurred in a very shortperiod geological time. Strong horizontal convergence produced both several meters of horizontal shortening and vertical uplifting in the uppermost crust along the Chelungpu fault. Mea ...
... generated by the Chi-Chi earthquake sequence shows a typical orogenic two-fold process that occurred in a very shortperiod geological time. Strong horizontal convergence produced both several meters of horizontal shortening and vertical uplifting in the uppermost crust along the Chelungpu fault. Mea ...
Proceedings
... police resort under construction and the newly completed Pendopo Kecamatan were collapsed. This fact indicates that the MMI (Modified Mercally Intensity – MMI) in this particular area was high. On September 30, western parts of Sumatera, especially around Padang and Pariaman was also hit an earthqua ...
... police resort under construction and the newly completed Pendopo Kecamatan were collapsed. This fact indicates that the MMI (Modified Mercally Intensity – MMI) in this particular area was high. On September 30, western parts of Sumatera, especially around Padang and Pariaman was also hit an earthqua ...
- CONICET Mendoza
... areas of 342 and 864 km2. This also occurs for the area estimated by Marot et al. (2012) of the 2003 event, which varies from 240 to 400 km2. These values are larger than the 60 km2 calculated by Wells and Coppersmith (1994) for crustal earthquakes. This suggests a different rheological rupture beha ...
... areas of 342 and 864 km2. This also occurs for the area estimated by Marot et al. (2012) of the 2003 event, which varies from 240 to 400 km2. These values are larger than the 60 km2 calculated by Wells and Coppersmith (1994) for crustal earthquakes. This suggests a different rheological rupture beha ...
CENTRAL AND EASTERN US NETWORK
... http://www.usarray.org/ceusn Central and Eastern US Network • Incorporated Research Institutions for Seismology • 1200 New York Ave, NW, Suite 400 • Washington DC 20005 • (202) 682-2220 ...
... http://www.usarray.org/ceusn Central and Eastern US Network • Incorporated Research Institutions for Seismology • 1200 New York Ave, NW, Suite 400 • Washington DC 20005 • (202) 682-2220 ...
Neotectonics guide - San Francisco State University
... seismograph (free period 0.8s) normalized to a standard epicentral distance of 100 km. reflects the relative amount of seismic energy released by an earthquake up to a ML 6.0 (max) but cannot accurately measure above that. Body-Wave Magnitude (mb) Short period body wave magnitude measured using peak ...
... seismograph (free period 0.8s) normalized to a standard epicentral distance of 100 km. reflects the relative amount of seismic energy released by an earthquake up to a ML 6.0 (max) but cannot accurately measure above that. Body-Wave Magnitude (mb) Short period body wave magnitude measured using peak ...
Concurrent density dependence and independence in
... For the region of the small polygon (Fig. 1), the boundary element model gives a stress increase of 0.3±0.6 MPa for the 1983 intrusion. This compares well with the seismicity-based stress change of 0.5 MPa obtained for both the 1977 and 1983 intrusion events using equation (3) (Fig. 2b). The pattern ...
... For the region of the small polygon (Fig. 1), the boundary element model gives a stress increase of 0.3±0.6 MPa for the 1983 intrusion. This compares well with the seismicity-based stress change of 0.5 MPa obtained for both the 1977 and 1983 intrusion events using equation (3) (Fig. 2b). The pattern ...
Chapter 5 Earthquakes - Sandpoint Middle
... – Liquefaction factors: occurs when the violent shaking turns loose, soft soil into a thick mud, causing buildings to sink and underground tanks to float to the surface. Triggers landslides. – Aftershocks: smaller earthquakes that follow the first one (hours, days, or even months later) – Tsunamis: ...
... – Liquefaction factors: occurs when the violent shaking turns loose, soft soil into a thick mud, causing buildings to sink and underground tanks to float to the surface. Triggers landslides. – Aftershocks: smaller earthquakes that follow the first one (hours, days, or even months later) – Tsunamis: ...
2010 Pichilemu earthquake
The 2010 Pichilemu earthquake (Spanish: Terremoto de Pichilemu de 2010), also known as the Libertador O'Higgins earthquake, was a 6.9 MW intraplate earthquake that struck Chile's O'Higgins Region on 11 March 2010. The earthquake was centred 15 kilometres (9.3 mi) northwest of the city of Pichilemu, according to the University of Chile Seismological Service.The earthquake was caused by increased regional stress arising from an earthquake on 27 February, centered offshore Maule Region, which was felt throughout central Chile. The 11 March earthquake was at first thought to be an aftershock from the 27 February event, but University of Chile Seismologist Jaime Campos identified it as an ""independent earthquake"". The Hawaii-based Pacific Tsunami Warning Center pointed out the possibility of local tsunamis within 100 kilometres (62 mi) of the epicentre, although small, but violent waves were seen in the Pichilemu and Bucalemu area. One person was reported dead. At least eleven aftershocks immediately followed, causing panic throughout coastal towns between the Coquimbo and Los Lagos regions.The earthquake was specially destructive in the epicentre town, Pichilemu, capital of Cardenal Caro Province. The city hosts five National Monuments of Chile, of which two, the Agustín Ross Park and the Agustín Ross Cultural Centre, were seriously damaged by the earthquake. It also damaged the villages of La Aguada and Cardonal de Panilonco. Rancagua, the capital of O'Higgins Region, was also damaged, leading President Sebastián Piñera to declare a catastrophe state in O'Higgins Region.