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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag has occurred near Matias Romero in Mexico

Posted by admin on September 12, 2015 0 Comments

Earthquake location 16.794S, -95.012WA light earthquake magnitude 4 (ml/mb) has struck on Saturday, 10 kilometers (6 miles) from Matias Romero in Mexico. Global time and date of event 23/08/15 / 2015-08-23 01:45:10 / August 23, 2015 @ 1:45 am UTC/GMT. The 4-magnitude earthquake was detected at 20:45:10 / 8:45 pm (local time epicenter). Unique identifier: us20003ihj. Ids that are associated to the event: us20003ihj. The epicenter of the earthquake was roughly 101.2 km (63 miles) below the earth’s surface. Exact location of event, depth 101.2 km, -95.012° West, 16.794° North. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Country/countries that might be effected, Mexico (c. 112 469 000 pop). The epicenter was 71 km (44 miles) from Salina Cruz (c. 73 600 pop), 40 km (25 miles) from Juchitán de Zaragoza (c. 67 600 pop), 58 km (36 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 26 km (16 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 10 km (6 miles) from Matías Romero (c. 21 100 pop), 41 km (25 miles) from Unión Hidalgo (c. 12 700 pop). Nearest cities/city/towns to hypocenter/epicentrum was Santo Domingo Zanatepec, San Francisco Ixhuatan, Salina Cruz (min 5000 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days one and in the last 365 days sixteen 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.

How would you describe the shaking?

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: 10 km SSE of Matias Romero, Mexico.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -95.012° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.794° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 101.2 km Depth of the event in kilometers.
Place 10km SSE of Matias Romero, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-08-23 01:45:10 Time when the event occurred. UTC/GMT
Updated 2015-09-11 23:46:04 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.34 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us20003ihj Id of event.
Event Code 20003ihj An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003ihj, A comma-separated list of event ids that are associated to an event.

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