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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near San Antonio de los Cobres in Argentina


Earthquake location -23.3566S, -66.9895WA light earthquake magnitude 4 (ml/mb) has occurred on Wednesday, 117 km NW of San Antonio de los Cobres, Argentina (73 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -66.9895° West, latitude -23.3566° South, depth = 227.52 km. The temblor was picked up at 08:45:53 / 8:45 am (local time epicenter). Event ids that are associated to the earthquake: us20006i2h. Id of event: us20006i2h. The earthquake was roughly at a depth of 227.52 km (141 miles). Date and time of earthquake in UTC/GMT: 27/07/16 / 2016-07-27 11:45:53 / July 27, 2016 @ 11:45 am.

Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been nine, in the last 10 days twelve, in the past 30 days eighteen and in the last 365 days ninety-one earthquakes of magnitude 3.0 or greater that has struck near. Each year there are an estimated 13,000 light quakes in the world.

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: 117 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 -66.9895° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.3566° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 227.52 km Depth of the event in kilometers.
Place 117km 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 2016-07-27 11:45:53 Time when the event occurred. UTC/GMT
Updated 2016-08-25 12:33:35 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 1.166 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.64 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 92 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 us20006i2h Id of event.
Event Code 20006i2h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006i2h, A comma-separated list of event ids that are associated to an event.

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