2007 Tocopilla earthquake
 | |
   | |
| UTC time | 2007-11-14 15:40:50 |
|---|---|
| ISC event | 13266131 |
| USGS-ANSS | ComCat |
| Local date | November 14, 2007 |
| Local time | 12:40 |
| Duration | 3:35 |
| Magnitude | 7.7 Mw[1] |
| Depth | 40 km (25 mi)[1] |
| Epicenter | 22°19′30″S 69°58′08″W / 22.325°S 69.969°W |
| Type | Thrust[2] |
| Areas affected | Chile |
| Max. intensity | MMI VIII (Severe) |
| Tsunami | 25.5 cm (10.0 in)[2] |
| Casualties | 2 killed[3] 65 injured[3] |
The 2007 Tocopilla earthquake occurred on November 14 at 12:40:50 local time. Its
Tectonic summary
The USGS reported that the earthquake resulted from the release of stresses generated by the subduction of the oceanic Nazca plate beneath the South American plate. In this region, known as the Peru-Chile subduction zone, the Nazca plate thrusts beneath South America at a rate of approximately 79 mm/year in an east-north-east direction. This earthquake indicates subduction-related thrusting, likely on the interface between these two plates.
This earthquake occurred near (and within) the southern end of the rupture area of the great magnitude 9.1 earthquake of 1877, which produced a destructive tsunami and whose source region has since the late 1970s been recognized as a potentially dangerous seismic gap. In 1995, a magnitude 8.0 earthquake occurred in the same subduction zone approximately 200 km further south of the November 14th event.[9]
Damage and casualties
At least two deaths have been attributed to this earthquake: an 88-year-old woman crushed under a collapsing wall at
See also
References
- ^ a b ISC (19 January 2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
- ^ a b "M7.7 – Antofagasta, Chile". United States Geological Survey.
- ^ a b PAGER-CAT Earthquake Catalog, Version 2008_06.1, United States Geological Survey, September 4, 2009
- ^ Terra.cl, 14/11/07, "Fuerte sismo sacudió esta tarde al Norte del País". Archived from the original on 2008-01-20.
- ^ Magnitude 7.1, Antofagasta earthquake Archived 2007-11-16 at the Wayback Machine of 15 November 2007
- ^ NOAA Pacific Tsunami Warning Center
- ^ Cancellation bulletin issued by the PTWC
- ^ a b Strong earthquake shakes northern Chile, kills at least two Archived 2007-11-16 at the Wayback Machine AFP news report
- ^ Magnitude 7.7 – ANTOFAGASTA, CHILE
- ^ Metals prices up after Chile quake Archived 2007-11-18 at the Wayback Machine The Australian Business
- ^ Workers trapped in tunnel collapse after quakes Archived 2012-02-07 at the Wayback Machine, Radio New Zealand News
- ^ Chile rattled by big aftershocks, BBC News
External links
- Oficina Nacional de Emergencia
- The International Seismological Centre has a bibliography and/or authoritative data for this event.
This article incorporates public domain material from websites or documents of the United States Geological Survey.