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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag strikes near Ayotzintepec in Mexico



Earthquake location 17.4646S, -96.2944WA light earthquake with magnitude 4 (ml/mb) was reported 28 kilometers (17 miles) from Ayotzintepec in Mexico on Monday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -96.2944 West, latitude 17.4646 North, depth = 33.52 km. Exact time and date of earthquake 12/03/18 / 2018-03-12 23:48:17 / March 12, 2018 @ 11:48 pm UTC/GMT. The 4-magnitude earthquake was detected at 17:48:17 / 5:48 pm (local time epicenter). Event id: us1000d74g. Ids that are associated to the earthquake: us1000d74g. The earthquake occurred at a depth of 33.52 km (21 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was San Pablo Huixtepec, Isla Soyaltepec, Zimatlán de Álvarez (min 5000 pop). Close country/countries, Mexico (c. 112 469 000 pop) (That might be effected). The epicenter was 64 km (40 miles) from Oaxaca de Juárez (c. 262 600 pop), 72 km (45 miles) from Tuxtepec (c. 92 100 pop), 67 km (42 miles) from Santa Cruz Xoxocotlán (c. 61 800 pop), 65 km (40 miles) from San Antonio de la Cal (c. 20 200 pop), 75 km (46 miles) from Villa de Zaachila (c. 14 000 pop), 73 km (45 miles) from Vicente Guerrero (c. 13 800 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days two and in the last 365 days seven earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Did you feel the quake?

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: 28 km SW of Ayotzintepec, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -96.2944° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.4646° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 33.52 km Depth of the event in kilometers.
Place 28km SW of Ayotzintepec, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-12 23:48:17 Time when the event occurred. UTC/GMT
Updated 2018-03-26 04:30:47 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 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 1.397 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 167 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 us1000d74g Id of event.
Event Code 1000d74g An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d74g, A comma-separated list of event ids that are associated to an event.

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