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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4 quake has struck near San Antonio de los Cobres in Argentina



Earthquake location -23.6406S, -66.8205WA light earthquake magnitude 4 (ml/mb) strikes 81 km NW of San Antonio de los Cobres, Argentina (50 miles) on Monday. Date and time of earthquake in UTC/GMT: 15/02/16 / 2016-02-15 03:55:53 / February 15, 2016 @ 3:55 am. The temblor was detected at 00:55:53 / 12:55 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us200050su. Ids that are associated to the earthquake: us200050su. Exact location, longitude -66.8205° West, latitude -23.6406° South, depth = 204.4 km. The earthquake occurred at a depth of 204.4 km (127 miles) below the earth’s surface.

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

Questions or comments?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 81 km NW of San Antonio de los Cobres, Argentina.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -66.8205° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.6406° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 204.4 km Depth of the event in kilometers.
Place 81km NW of San Antonio de los Cobres, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-02-15 03:55:53 Time when the event occurred. UTC/GMT
Updated 2016-02-17 05:11:41 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 2.179 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 111 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 us200050su Id of event.
Event Code 200050su An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us200050su, A comma-separated list of event ids that are associated to an event.

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