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Light earthquake: M4.8 quake has struck near San Francisco del Mar in Mexico

Earthquake location 16.1131S, -94.4743WA light earthquake magnitude 4.8 (ml/mb) has struck on Saturday, 23 kilometers (14 miles) from San Francisco del Mar in Mexico. Global date and time of event UTC/GMT: 09/09/17 / 2017-09-09 12:17:45 / September 9, 2017 @ 12:17 pm. Event ids that are associated to the earthquake: us2000aiu8. Id of event: us2000aiu8. Exact location of earthquake, longitude -94.4743 West, latitude 16.1131 North, depth = 77.6 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.8-magnitude earthquake has occurred at 06:17:45 / 6:17 am (local time epicenter). The epicenter was at a depth of 77.6 km (48 miles).

Event epicenter was 78 km (49 miles) from Salina Cruz (c. 73 600 pop), 68 km (43 miles) from Juchitán de Zaragoza (c. 67 600 pop), 85 km (53 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 77 km (48 miles) from Tonalá (c. 32 900 pop), 85 km (53 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 63 km (39 miles) from Arriaga (c. 22 800 pop), 55 km (34 miles) from Unión Hidalgo (c. 12 700 pop). Closest city/cities/towns to epicentrum/hypocenter was Santo Domingo Tehuantepec, San Jerónimo Ixtepec, Salina Cruz (min 5000 pop). Close country/countries that might be effected, Mexico (c. 112 469 000 pop).

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been fourty, in the last 10 days sixty-six, in the past 30 days sixty-six and in the last 365 days eighty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. There are an estimated 13,000 light quakes in the world each year.

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: 23 km SE of San Francisco del Mar, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.8 mb The magnitude for the event.
Longitude -94.4743° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.1131° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 77.6 km Depth of the event in kilometers.
Place 23km SE of San Francisco 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 2017-09-09 12:17:45 Time when the event occurred. UTC/GMT
Updated 2017-09-09 12:35:24 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 354 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 2.969 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 191 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 us2000aiu8 Id of event.
Event Code 2000aiu8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000aiu8, A comma-separated list of event ids that are associated to an event.

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