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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4 mag, 14 km SSW of Salina Cruz, Mexico

Posted by admin on May 6, 2018 0 Comments

Earthquake location 16.0366S, -95.233WA light earthquake magnitude 4 (ml/mb) strikes 14 kilometers (9 miles) from Salina Cruz in Mexico on Friday. The 4-magnitude earthquake was detected at 19:32:59 / 7:32 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 07/04/18 / 2018-04-07 01:32:59 / April 7, 2018 @ 1:32 am. Exact location of earthquake, longitude -95.233 West, latitude 16.0366 North, depth = 35 km. Event id: us1000dwsf. Ids that are associated to the earthquake: us1000dwsf. The earthquake occurred at a depth of 35 km (22 miles) below the earth’s surface.

Close country/countries that might be effected, Mexico (c. 112 469 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was San Francisco Ixhuatan, Las Amilpas, Unión Hidalgo (min 5000 pop). The epicenter was 17 km (10 miles) from Salina Cruz (c. 73 600 pop), 50 km (31 miles) from Juchitán de Zaragoza (c. 67 600 pop), 32 km (20 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 62 km (38 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 65 km (40 miles) from Unión Hidalgo (c. 12 700 pop), 75 km (47 miles) from Las Amilpas (c. 8 800 pop).

Every 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 seven, in the last 10 days nine, in the past 30 days fourteen and in the last 365 days two hundred and seventy earthquakes of magnitude 3.0 or greater that has occurred nearby.

Did you feel it?

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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 14 km SSW of Salina Cruz, Mexico. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -95.233° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 16.0366° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 14km SSW of Salina Cruz, Mexico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-04-07 01:32:59 Time when the event occurred. UTC/GMT
Updated 2018-05-05 23:32:08 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 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 0.883 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 139 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 us1000dwsf Id of event.
Event Code 1000dwsf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000dwsf, A comma-separated list of event ids that are associated to an event.

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