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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Santa Maria Zacatepec in Mexico

Earthquake location 16.7834S, -97.8517WA light earthquake with magnitude 4.4 (ml/mb) was detected on Friday, 14 kilometers (9 miles) from Santa Maria Zacatepec in Mexico. Event ids that are associated to the earthquake: us1000d56m. Id of event: us1000d56m. Exact location of event, longitude -97.8517 West, latitude 16.7834 North, depth = 53.2 km. Global time and date of event 16/03/18 / 2018-03-16 14:00:22 / March 16, 2018 @ 2:00 pm UTC/GMT. The temblor was reported at 08:00:22 / 8:00 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 53.2 km (33 miles).

Country/countries that might be effected, Mexico (c. 112 469 000 pop). Event epicenter was 54 km (34 miles) from Santiago Pinotepa Nacional (c. 25 700 pop), 60 km (37 miles) from Ometepec (c. 17 800 pop), 57 km (35 miles) from Heroica Ciudad de Tlaxiaco (c. 17 500 pop), 57 km (35 miles) from Heroica Ciudad de Tlaxiaco (c. 14 600 pop), 56 km (35 miles) from Santiago Jamiltepec (c. 9 900 pop), 28 km (18 miles) from Putla Villa de Guerrero (c. 9 500 pop). Closest city/cities/towns to epicentrum/hypocenter was San Luis Acatlán, Santa Catarina Juquila, San Miguel Panixtlahuaca (min 5000 pop).

In the past 24 hours, there have been four, in the last 10 days five, in the past 30 days nineteen and in the last 365 days thirty-four earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light earthquakes in the world each year.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 14 km E of Santa Maria Zacatepec, Mexico.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -97.8517° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.7834° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 53.2 km Depth of the event in kilometers.
Place 14km E of Santa Maria Zacatepec, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-03-16 14:00:22 Time when the event occurred. UTC/GMT
Updated 2018-03-25 10:48:28 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 298 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 1.033 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.94 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 244 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 us1000d56m Id of event.
Event Code 1000d56m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000d56m, A comma-separated list of event ids that are associated to an event.

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