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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag has occurred near Calama in Chile

Earthquake location -21.715S, -68.531WA light earthquake magnitude 4.2 (ml/mb) has struck on Saturday, 93 kilometers (58 miles) from Calama in Chile. Exact location, longitude -68.531° West, latitude -21.715° South, depth = 138.3 km. The temblor was picked up at 23:43:05 / 11:43 pm (local time epicenter). Global date and time of event UTC/GMT: 13/09/15 / 2015-09-13 02:43:05 / September 13, 2015 @ 2:43 am. Event ids that are associated to the earthquake: us20003j5e. Id of event: us20003j5e. The epicenter was at a depth of 138.3 km (86 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Nearest cities/city/towns to hypocenter/epicentrum was Calama (min 5000 pop). The epicenter was 92 km (57 miles) from Calama (c. 143 100 pop). Nearby country/countries that might be effected, Chile (c. 16 746 000 pop).

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

Did you feel anything?

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: 93 km NNE of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -68.531° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.715° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 138.3 km Depth of the event in kilometers.
Place 93km NNE 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 2015-09-13 02:43:05 Time when the event occurred. UTC/GMT
Updated 2015-10-03 19:27:43 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.41 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 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 us20003j5e Id of event.
Event Code 20003j5e An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003j5e, A comma-separated list of event ids that are associated to an event.

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