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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.5 quake has struck near Aguililla in Mexico

Earthquake location 18.673S, -102.9451WA light earthquake magnitude 4.5 (ml/mb) has struck on Wednesday, 23 kilometers (14 miles) from Aguililla in Mexico. Exact time and date of event in UTC/GMT: 20/07/16 / 2016-07-20 22:06:14 / July 20, 2016 @ 10:06 pm. The earthquake occurred at a depth of 69.1 km (43 miles) below the earth’s surface. Event id: us20006gaf. Ids that are associated to the earthquake: us20006gaf. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -102.9451° West, 18.673° North, depth 69.1 km. The temblor was picked up at 17:06:14 / 5:06 pm (local time epicenter).

Nearby country/countries that might be effected, Mexico (c. 112 469 000 pop). Epicenter of the event was 77 km (48 miles) from Apatzingán (c. 98 400 pop), 58 km (36 miles) from Tepalcatepec (c. 15 300 pop), 70 km (43 miles) from La Mira Tumbiscatio (c. 14 500 pop), 25 km (16 miles) from Coalcomán de Vázquez Pallares (c. 10 800 pop), 92 km (57 miles) from Buenos Aires (c. 10 700 pop), 77 km (48 miles) from Arteaga (c. 9 600 pop), 18 km (11 miles) from Aguililla (c. 9 400 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Tancítaro, Tancítaro, Buenos Aires.

Each 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. 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 six earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel it?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 23 km WSW of Aguililla, Mexico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -102.9451° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 18.673° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 69.1 km Depth of the event in kilometers.
Place 23km WSW of Aguililla, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-07-20 22:06:14 Time when the event occurred. UTC/GMT
Updated 2016-08-04 04:29:02 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 312 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 1.89 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.84 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 155 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 us20006gaf Id of event.
Event Code 20006gaf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006gaf, A comma-separated list of event ids that are associated to an event.

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