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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4 quake has struck near Tecoanapa in Mexico


Earthquake location 16.506S, -98.636WA light earthquake magnitude 4 (ml/mb) has occurred on Monday, 12 kilometers (7 miles) from Tecoanapa in Mexico. The temblor was detected at 17:47:25 / 5:47 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 5 km, -98.636° West, 16.506° North. All ids that are associated to the event: us20003ipy. Unique identifier: us20003ipy. Global time and date of event 31/08/15 / 2015-08-31 22:47:25 / August 31, 2015 @ 10:47 pm UTC/GMT. The earthquake occurred at a depth of 5 km (3 miles).

Country/countries that might be effected, Mexico (c. 112 469 000 pop). Closest city/cities/towns to epicentrum/hypocenter was San Marcos, Malinaltepec, Pinotepa de Don Luis (min 5000 pop). Earthquake epicenter was 82 km (51 miles) from Malinaltepec (c. 26 600 pop), 65 km (40 miles) from Santiago Pinotepa Nacional (c. 25 700 pop), 32 km (20 miles) from Ometepec (c. 17 800 pop), 87 km (54 miles) from San Marcos (c. 12 300 pop), 71 km (44 miles) from Ayutla de los Libres (c. 9 900 pop), 57 km (36 miles) from Cruz Grande (c. 9 900 pop).

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 12 km E of Tecoanapa, Mexico.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -98.636° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.506° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 5 km Depth of the event in kilometers.
Place 12km E of Tecoanapa, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-08-31 22:47:25 Time when the event occurred. UTC/GMT
Updated 2015-09-17 23:47:29 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 246 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.78 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us20003ipy Id of event.
Event Code 20003ipy An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003ipy, A comma-separated list of event ids that are associated to an event.

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