Light earthquake, 4 mag strikes near Calama in Chile

A light earthquake magnitude 4 (ml/mb) has occurred on Sunday, 151 km N of Calama, Chile (94 miles). Exact location, longitude -68.6788° West, latitude -21.1202° South, depth = 138.46 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 20/11/16 / 2016-11-20 23:37:23 / November 20, 2016 @ 11:37 pm. The earthquake was roughly at a depth of 138.46 km (86 miles). All ids that are associated to the event: us10007b0v. Unique identifier: us10007b0v. The 4-magnitude earthquake was detected at 19:37:23 / 7:37 pm (local time epicenter).

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

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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: 151 km N of Calama, Chile.

Calama Chile

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-68.6788° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-21.1202° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	138.46 km	Depth of the event in kilometers.
Place	151km N 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	2016-11-20 23:37:23	Time when the event occurred. UTC/GMT
Updated	2016-11-21 00:09:43	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	246	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	0.759	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.09 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	103	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	us10007b0v	Id of event.
Event Code	10007b0v	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us10007b0v,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4 mag strikes near Calama in Chile

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