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Light earthquake: M4.2 quake has struck near Calama in Chile

Earthquake location -22.7251S, -69.112WA light earthquake with magnitude 4.2 (ml/mb) was reported 34 kilometers (21 miles) from Calama in Chile on Thursday. Exact time and date of earthquake 13/02/20 / 2020-02-13 22:23:31 / February 13, 2020 @ 10:23 pm UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was reported at 18:23:31 / 6:23 pm (local time epicenter). The earthquake occurred at a depth of 93.82 km (58 miles) below the earth’s surface. Exact location of earthquake, longitude -69.112 West, latitude -22.7251 South, depth = 93.82 km. Id of earthquake: us70007pqi. Event ids that are associated: us70007pqi.

Nearest cities/city/villages to epicentrum/hypocenter was Calama (min 5000 pop). Nearby country/countries that might be effected, Chile (c. 16 746 000 pop). The epicenter was 35 km (22 miles) from Calama (c. 143 100 pop).

In the past 24 hours, there have been one, in the last 10 days three, in the past 30 days three and in the last 365 days fourty-three 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. Every year there are an estimated 13,000 light earthquakes in the world.

How would you describe the shaking?

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: 34 km SSW of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -69.112° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.7251° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 93.82 km Depth of the event in kilometers.
Place 34km SSW of Calama, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-02-13 22:23:31 Time when the event occurred. UTC/GMT
Updated 2020-02-13 22:37:16 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 0.425 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.81 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 46 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 us70007pqi Id of event.
Event Code 70007pqi An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70007pqi, A comma-separated list of event ids that are associated to an event.

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