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Light earthquake: M4.1 quake has struck near San Mateo del Mar in Mexico


Earthquake location 15.6383S, -94.7908WA light earthquake magnitude 4.1 (ml/mb) has occurred on Wednesday, 66 kilometers (41 miles) from San Mateo del Mar in Mexico. Exact location of event, longitude -94.7908 West, latitude 15.6383 North, depth = 35 km. The epicenter was at a depth of 35 km (22 miles). The temblor was detected at 23:59:17 / 11:59 pm (local time epicenter). Unique identifier: us70009mal. Ids that are associated to the event: us70009mal. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 21/05/20 / 2020-05-21 05:59:17 / May 21, 2020 @ 5:59 am UTC/GMT.

Nearest cities/city/villages to epicentrum/hypocenter was Santo Domingo Tehuantepec, San Francisco Ixhuatan, Las Amilpas (min 5000 pop). Country/countries that might be effected, Mexico (c. 112 469 000 pop). Epicenter of the earthquake was 75 km (47 miles) from Salina Cruz (c. 73 600 pop), 90 km (56 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 83 km (52 miles) from Las Amilpas (c. 8 800 pop), 86 km (53 miles) from San Francisco Ixhuatan (c. 5 700 pop), 67 km (42 miles) from San Mateo del Mar (c. 5 400 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days three and in the last 365 days thirty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 66 km SSE of San Mateo del Mar, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -94.7908° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.6383° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 66km SSE of San Mateo del Mar, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-05-21 05:59:17 Time when the event occurred. UTC/GMT
Updated 2020-05-21 06:50:39 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 259 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 2.631 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.85 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 178 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 us70009mal Id of event.
Event Code 70009mal An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70009mal, A comma-separated list of event ids that are associated to an event.

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