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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Calingasta in Argentina

Earthquake location -31.395S, -69.4796WA light earthquake with magnitude 4.2 (ml/mb) was reported 9 kilometers (6 miles) from Calingasta in Argentina on Tuesday. Date and time of earthquake in UTC/GMT: 26/12/17 / 2017-12-26 18:21:22 / December 26, 2017 @ 6:21 pm. Id of earthquake: us1000bwf9. Event ids that are associated: us1000bwf9. The earthquake occurred at a depth of 125.08 km (78 miles). Exact location, longitude -69.4796° West, latitude -31.395° South, depth = 125.08 km. The temblor was detected at 15:21:22 / 3:21 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

The epicenter was 91 km (56 miles) from San Juan (c. 447 000 pop), 90 km (56 miles) from Chimbas (c. 73 800 pop), 91 km (56 miles) from Pocito (c. 41 000 pop), 91 km (56 miles) from Albardón (c. 20 400 pop), 90 km (56 miles) from Villa Paula de Sarmiento (c. 19 100 pop), 93 km (58 miles) from San Martín (c. 10 100 pop). Nearby country/countries, Argentina (c. 41 343 000 pop) (That might be effected). Nearest cities/city/towns to hypocenter/epicentrum was San Martín, San Juan, Pocito (min 5000 pop).

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 twenty-one earthquakes of magnitude 3.0 or greater that have been detected in the same area. 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.

Did you feel anything?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 9 km SW of Calingasta, Argentina.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -69.4796° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.395° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 125.08 km Depth of the event in kilometers.
Place 9km SW of Calingasta, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-12-26 18:21:22 Time when the event occurred. UTC/GMT
Updated 2017-12-29 19:06:09 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 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 0.696 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.15 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 98 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 us1000bwf9 Id of event.
Event Code 1000bwf9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000bwf9, A comma-separated list of event ids that are associated to an event.

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