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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Calama in Chile

Posted by admin on March 5, 2016 0 Comments

Earthquake location -22.513S, -68.952WA light earthquake magnitude 4.1 (ml/mb) strikes 5 kilometers (3 miles) from Calama in Chile on Sunday. Exact location of earthquake, longitude -68.952 West, latitude -22.513 South, depth = 86.4 km. Exact time and date of earthquake 21/02/16 / 2016-02-21 10:39:49 / February 21, 2016 @ 10:39 am UTC/GMT. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.1-magnitude earthquake has occurred at 07:39:49 / 7:39 am (local time epicenter). Event id: us10004sd4. Ids that are associated to the earthquake: us10004sd4. The earthquake occurred at a depth of 86.4 km (54 miles) below the earth’s surface.

Country/countries that might be effected, Chile (c. 16 746 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Calama (min 5000 pop). Epicenter of the event was 7 km (4 miles) from Calama (c. 143 100 pop).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days five and in the last 365 days fourty-three earthquakes of magnitude 3.0 or greater that have been detected nearby. Every 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.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 5 km SSW of Calama, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -68.952° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -22.513° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 86.4 km Depth of the event in kilometers.
Place 5km 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 2016-02-21 10:39:49 Time when the event occurred. UTC/GMT
Updated 2016-03-05 13:03:16 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 259 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 1.42 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 us10004sd4 Id of event.
Event Code 10004sd4 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004sd4, A comma-separated list of event ids that are associated to an event.

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