Magnitude 5.8 - GUATEMALA
2011 September 19 18:34:00 UTC
- This event has been reviewed by a seismologist.
|Depth||9 km (5.6 miles) (poorly constrained)|
|Distances||53 km (32 miles) SE of GUATEMALA, Guatemala|
69 km (42 miles) E of Escuintla, Guatemala
74 km (45 miles) WNW of Santa Ana, El Salvador
1114 km (692 miles) ESE of MEXICO CITY, D.F., Mexico
|Location Uncertainty||horizontal +/- 18.5 km (11.5 miles); depth +/- 9.5 km (5.9 miles)|
|Parameters||NST=226, Nph=228, Dmin=303.9 km, Rmss=1.21 sec, Gp=122°,|
M-type=regional moment magnitude (Mw), Version=5
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At least one person killed at Guatemala. Felt (V) at Petapa; (IV) at Amatitlan, Cahabon, Fraijanes, Guatemala, Mixco and Santa Catarina Pinula; (III) at Antigua Guatemala. Also felt at Chichicastenango, Chimaltenango, Cuidad Vieja, Cotzumalguapa, Escuintla, Nahuala, Panajachel, San Andres Sojcabaja, San Jose Pinula, San Lucas Sacatepequez, Villa Canales and Villa Nueva. Felt (II) at Copan and San Pedro Sula, Honduras. Also felt at Comayagua. Felt (II) at San Salvador, El Salvador. Also felt at Ahuachapan, Antiguo Cuscatlan and Santa Ana. Felt at Belmopan, Dangriga and San Ignacio, Belize.
The Guatemala earthquake of September 19, 2011, occurred as the result of normal faulting at shallow depth in the northwest corner of the Caribbean plate, in the Central American subduction zone. A preliminary determination of the earthquakeâs focal-mechanism implies that the shock occurred as the result of faulting on a north-trending normal fault. The broad scale tectonics of the Central American subduction zone are controlled by the north-northeastward subduction of the Cocos plate beneath the Caribbean plate. The overriding Caribbean plate is characterized by east-west extensional stresses and experiences both strike-slip and normal-faulting earthquakes.
- Preliminary Earthquake Report
- U.S. Geological Survey, National Earthquake Information Center:
World Data Center for Seismology, Denver