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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Mapastepec in Mexico

Earthquake location 15.6058S, -92.8324WA light earthquake with magnitude 4.5 (ml/mb) was reported 20 kilometers (12 miles) from Mapastepec in Mexico on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 11/02/18 / 2018-02-11 23:44:22 / February 11, 2018 @ 11:44 pm. The earthquake was roughly at a depth of 123.52 km (77 miles). All ids that are associated to the event: us2000d0qb. Unique identifier: us2000d0qb. The 4.5-magnitude earthquake was detected at 17:44:22 / 5:44 pm (local time epicenter). Exact location of earthquake, longitude -92.8324 West, latitude 15.6058 North, depth = 123.52 km.

Earthquake epicenter was 65 km (40 miles) from Huixtla (c. 29 300 pop), 68 km (42 miles) from Motozintla de Mendoza (c. 19 100 pop), 74 km (46 miles) from Frontera Comalapa (c. 18 700 pop), 20 km (13 miles) from Mapastepec (c. 16 100 pop), 41 km (26 miles) from Pijijiapan (c. 15 100 pop), 87 km (54 miles) from Venustiano Carranza (c. 15 100 pop), 37 km (23 miles) from Escuintla (c. 9 600 pop). Country/countries that might be effected, Mexico (c. 112 469 000 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Tzimol, Mazatán, Tacaná.

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

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. 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: 20 km NNE of Mapastepec, Mexico.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -92.8324° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.6058° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 123.52 km Depth of the event in kilometers.
Place 20km NNE of Mapastepec, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-02-11 23:44:22 Time when the event occurred. UTC/GMT
Updated 2018-02-24 03:10:43 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 312 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 0.948 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.11 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 133 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 us2000d0qb Id of event.
Event Code 2000d0qb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000d0qb, A comma-separated list of event ids that are associated to an event.

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