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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Salina Cruz in Mexico

Posted by admin on October 20, 2017 0 Comments

Earthquake location 15.6668S, -95.0258WA light earthquake with magnitude 4.2 (ml/mb) was reported 58 kilometers (36 miles) from Salina Cruz in Mexico on Friday. The 4.2-magnitude earthquake was detected at 03:20:28 / 3:20 am (local time epicenter). The epicenter was at a depth of 21.42 km (13 miles). All ids that are associated to the event: us2000azn4. Unique identifier: us2000azn4. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -95.0258° West, latitude 15.6668° North, depth = 21.42 km. Global time and date of event 22/09/17 / 2017-09-22 09:20:28 / September 22, 2017 @ 9:20 am UTC/GMT.

Close country/countries, Mexico (c. 112 469 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was Asunción Ixtaltepec, Unión Hidalgo, El Espinal (min 5000 pop). Event epicenter was 61 km (38 miles) from Salina Cruz (c. 73 600 pop), 86 km (53 miles) from Juchitán de Zaragoza (c. 67 600 pop), 77 km (48 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 92 km (57 miles) from Unión Hidalgo (c. 12 700 pop), 89 km (55 miles) from Las Amilpas (c. 8 800 pop), 91 km (57 miles) from El Espinal (c. 7 800 pop).

In the past 24 hours, there have been fifty-one, in the last 10 days one hundred and fourteen, in the past 30 days two hundred and seventy-eight and in the last 365 days two hundred and ninety-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity and damage at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 58 km SSE of Salina Cruz, Mexico. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -95.0258° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 15.6668° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 21.42 km Depth of the event in kilometers.
Place 58km SSE 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 2017-09-22 09:20:28 Time when the event occurred. UTC/GMT
Updated 2017-10-20 14:01:20 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 271 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 1.047 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.17 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 156 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 us2000azn4 Id of event.
Event Code 2000azn4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000azn4, A comma-separated list of event ids that are associated to an event.

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