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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Calama in Chile


Earthquake location -21.787S, -68.647WA light earthquake magnitude 4.4 (ml/mb) strikes 80 kilometers (50 miles) from Calama in Chile on Saturday. Id of earthquake: us20002wse. Event ids that are associated: us20002wse. The temblor was picked up at 09:18:32 / 9:18 am (local time epicenter). Exact location of earthquake, longitude -68.647 West, latitude -21.787 South, depth = 112.9 km. The epicenter was at a depth of 112.9 km (70 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 11/07/15 / 2015-07-11 13:18:32 / July 11, 2015 @ 1:18 pm.

Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Calama. Close country/countries that might be effected, Chile (c. 16 746 000 pop). Earthquake epicenter was 80 km (50 miles) from Calama (c. 143 100 pop).

In the past 24 hours, there have been four, in the last 10 days six, in the past 30 days nine and in the last 365 days fourty-eight earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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: 80 km NNE of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -68.647° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.787° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 112.9 km Depth of the event in kilometers.
Place 80km 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 2015-07-11 13:18:32 Time when the event occurred. UTC/GMT
Updated 2015-08-02 16:14:07 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 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 298 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 0.92 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 us20002wse Id of event.
Event Code 20002wse An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20002wse, A comma-separated list of event ids that are associated to an event.

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