The silent earthquake of 2002 in the Guerrero seismic gap, Mexico (Mw=7.6): Inversion of slip on the plate interface and some implications
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2004
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| _version_ | 1876464141201309696 |
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| author | A. R. Lowry |
| author_facet | A. R. Lowry |
| contents | The silent earthquake of 2002 in the Guerrero seismic gap, Mexico (Mw=7.6): Inversion of slip on the plate interface and some implications A. R. Lowry M. Santoyo K. M. Larson I. Franco Sánchez A. Iglesias S. K. Singh V. Kostoglodov Ciencias de la Tierra GPS Slow earthquake Guerrero seismic gap We invert GPS position data to map the slip on the plate interface during an aseismic, slow-slip event, which occurred in2002 in the Guerrero seismic gap of the Mexican subduction zone, lasted for ~4 months, and was detected by 7 continuous GPSreceivers located over an area of ~550x250 km2. Our best model, under physically reasonable constraints, shows that the slow slipoccurred on the transition zone at a distance range of 100 to 170 km from the trench. The average slip was about 22.5 cm (Mo~2.97x1027 dyne-cm, Mw=7.6). This model implies an increased shear stress at the bottom of the locked, seismogenic part of theinterface which lies updip from the transition zone, and, hence, an enhanced seismic hazard. The results from other similarsubduction zones also favor this model. However, we cannot rule out an alternative model that requires slow slip to invade theseismogenic zone as well. A definitive answer to this critical issue would require more GPS stations and long-term monitoring. 2004 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56843301 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.3 Vol.43 |
| format | Artículo científico |
| id | redalyc_56843301 |
| institution | Redalyc |
| language | en |
| publishDate | 2004 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | The silent earthquake of 2002 in the Guerrero seismic gap, Mexico (Mw=7.6): Inversion of slip on the plate interface and some implications A. R. Lowry Ciencias de la Tierra GPS Slow earthquake Guerrero seismic gap The silent earthquake of 2002 in the Guerrero seismic gap, Mexico (Mw=7.6): Inversion of slip on the plate interface and some implications A. R. Lowry M. Santoyo K. M. Larson I. Franco Sánchez A. Iglesias S. K. Singh V. Kostoglodov Ciencias de la Tierra GPS Slow earthquake Guerrero seismic gap We invert GPS position data to map the slip on the plate interface during an aseismic, slow-slip event, which occurred in2002 in the Guerrero seismic gap of the Mexican subduction zone, lasted for ~4 months, and was detected by 7 continuous GPSreceivers located over an area of ~550x250 km2. Our best model, under physically reasonable constraints, shows that the slow slipoccurred on the transition zone at a distance range of 100 to 170 km from the trench. The average slip was about 22.5 cm (Mo~2.97x1027 dyne-cm, Mw=7.6). This model implies an increased shear stress at the bottom of the locked, seismogenic part of theinterface which lies updip from the transition zone, and, hence, an enhanced seismic hazard. The results from other similarsubduction zones also favor this model. However, we cannot rule out an alternative model that requires slow slip to invade theseismogenic zone as well. A definitive answer to this critical issue would require more GPS stations and long-term monitoring. 2004 artículo científico 0016-7169 https://www.redalyc.org/articulo.oa?id=56843301 en http://www.redalyc.org/revista.oa?id=568 Geofísica Internacional application/pdf Universidad Nacional Autónoma de México Geofísica Internacional (México) Num.3 Vol.43 |
| title | The silent earthquake of 2002 in the Guerrero seismic gap, Mexico (Mw=7.6): Inversion of slip on the plate interface and some implications |
| topic | Ciencias de la Tierra GPS Slow earthquake Guerrero seismic gap |
| url | https://www.redalyc.org/articulo.oa?id=56843301 |