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Light earthquake: M4.2 quake has struck near Niltepec in Mexico

Earthquake location 16.9236S, -94.6158WA light earthquake with magnitude 4.2 (ml/mb) was reported 39 kilometers (24 miles) from Niltepec in Mexico on Saturday. Exact location of earthquake, longitude -94.6158 West, latitude 16.9236 North, depth = 120.35 km. The temblor was reported at 11:00:00 / 11:00 am (local time epicenter). Unique identifier: us1000h8r3. Ids that are associated to the event: us1000h8r3. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 120.35 km (75 miles) below the earth’s surface. Global date and time of event UTC/GMT: 22/09/18 / 2018-09-22 17:00:00 / September 22, 2018 @ 5:00 pm.

Epicenter of the event was 69 km (43 miles) from Juchitán de Zaragoza (c. 67 600 pop), 64 km (40 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 45 km (28 miles) from Matías Romero (c. 21 100 pop), 55 km (34 miles) from Unión Hidalgo (c. 12 700 pop), 83 km (52 miles) from Chahuite (c. 9 800 pop), 62 km (38 miles) from Las Amilpas (c. 8 800 pop). Close country/countries, Mexico (c. 112 469 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was San Mateo del Mar, Chahuite, El Espinal (min 5000 pop).

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

Did you feel it?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 39 km N of Niltepec, Mexico. This data 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 -94.6158° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.9236° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 120.35 km Depth of the event in kilometers.
Place 39km N of Niltepec, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-09-22 17:00:00 Time when the event occurred. UTC/GMT
Updated 2018-10-10 19:15:47 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 1.437 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.29 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 100 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 us1000h8r3 Id of event.
Event Code 1000h8r3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h8r3, A comma-separated list of event ids that are associated to an event.

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