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Light earthquake: M4.7 quake has struck near Copala in Mexico

Posted by admin on July 21, 2018 0 Comments

Earthquake location 16.2821S, -99.054WA light earthquake with magnitude 4.7 (ml/mb) was detected on Friday, 41 kilometers (25 miles) from Copala in Mexico. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.7-magnitude earthquake has occurred at 18:29:40 / 6:29 pm (local time epicenter). Exact location of event, depth 10 km, -99.054° West, 16.2821° North. Id of earthquake: us2000gach. Event ids that are associated: us2000gach. The epicenter was at a depth of 10 km (6 miles). Exact time and date of earthquake 21/07/18 / 2018-07-21 01:29:40 / July 21, 2018 @ 1:29 am UTC/GMT.

Epicenter of the earthquake was 82 km (51 miles) from Ometepec (c. 17 800 pop), 68 km (42 miles) from San Marcos (c. 12 300 pop), 76 km (47 miles) from Ayutla de los Libres (c. 9 900 pop), 50 km (31 miles) from Cruz Grande (c. 9 900 pop), 72 km (44 miles) from Cuajinicuilapa de Santa Maria (c. 9 400 pop), 68 km (42 miles) from San Luis Acatlán (c. 8 300 pop), 37 km (23 miles) from Copala (c. 6 900 pop). Nearby country/countries, Mexico (c. 112 469 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Ometepec, Ayutla de los Libres, Cuajinicuilapa de Santa Maria.

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 two and in the last 365 days thirty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area.

Did you feel anything?

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: 41 km S of Copala, Mexico.

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More information

Parameter Value Description
Magnitude 4.7 mb The magnitude for the event.
Longitude -99.054° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.2821° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 41km S of Copala, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-07-21 01:29:40 Time when the event occurred. UTC/GMT
Updated 2018-07-21 02:38:40 Time when the event was most recently updated. UTC/GMT
Timezone offset -420 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 340 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 1.356 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.83 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 189 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 us2000gach Id of event.
Event Code 2000gach An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000gach, A comma-separated list of event ids that are associated to an event.

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