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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Chiapilla in Mexico


Earthquake location 16.3859S, -92.7005WA light earthquake with magnitude 4.2 (ml/mb) was reported 14 kilometers (9 miles) from Chiapilla in Mexico on Monday. The temblor was detected at 12:39:46 / 12:39 pm (local time epicenter). Exact location, longitude -92.7005° West, latitude 16.3859° North, depth = 215.86 km. Exact time and date of earthquake 21/08/17 / 2017-08-21 18:39:46 / August 21, 2017 @ 6:39 pm UTC/GMT. The earthquake occurred at a depth of 215.86 km (134 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us2000abnz. Id of event: us2000abnz.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Simojovel de Allende, Pueblo Nuevo Jolistahuacan, Ocosingo. Nearby country/countries, Mexico (c. 112 469 000 pop) (That might be effected). Epicenter of the event was 61 km (38 miles) from Tuxtla Gutiérrez (c. 481 100 pop), 39 km (24 miles) from San Cristóbal de las Casas (c. 129 000 pop), 77 km (48 miles) from Las Margaritas (c. 103 400 pop), 62 km (39 miles) from Comitán (c. 79 900 pop), 49 km (30 miles) from Chiapa de Corzo (c. 32 200 pop), 83 km (52 miles) from Ocozocoautla de Espinosa (c. 31 600 pop).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days ten earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 14 km SSE of Chiapilla, Mexico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -92.7005° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.3859° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 215.86 km Depth of the event in kilometers.
Place 14km SSE of Chiapilla, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-08-21 18:39:46 Time when the event occurred. UTC/GMT
Updated 2017-08-25 16:04:38 Time when the event was most recently updated. UTC/GMT
Timezone offset -360 Timezone offset from UTC in minutes at the event epicenter.
Felt The total number of felt reports
CDI The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 271 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network us The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,us, A comma-separated list of network contributors.
Number of Stations Used The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.567 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.97 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 130 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mb The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us2000abnz Id of event.
Event Code 2000abnz An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000abnz, A comma-separated list of event ids that are associated to an event.

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