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Light earthquake: M4.6 quake has struck near Coquimbo in Chile


Earthquake location -29.3282S, -71.9912WA light earthquake magnitude 4.6 (ml/mb) strikes 93 kilometers (58 miles) from Coquimbo in Chile on Monday. The 4.6-magnitude earthquake was detected at 09:36:44 / 9:36 am (local time epicenter). Global date and time of event UTC/GMT: 28/12/15 / 2015-12-28 14:36:44 / December 28, 2015 @ 2:36 pm. All ids that are associated to the event: us10004a3m. Unique identifier: us10004a3m. The earthquake occurred at a depth of 4.5 km (3 miles). Exact location of earthquake, longitude -71.9912 West, latitude -29.3282 South, depth = 4.5 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Epicenter of the event was 94 km (58 miles) from Coquimbo (c. 161 300 pop), 96 km (60 miles) from La Serena (c. 154 500 pop). Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was La Serena, Coquimbo (min 5000 pop).

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 one, in the past 30 days five and in the last 365 days ninety-one 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.

Did you feel it?

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 information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 93 km NW of Coquimbo, Chile.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -71.9912° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -29.3282° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 4.5 km Depth of the event in kilometers.
Place 93km NW of Coquimbo, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-12-28 14:36:44 Time when the event occurred. UTC/GMT
Updated 2015-12-28 22:00:33 Time when the event was most recently updated. UTC/GMT
Timezone offset -300 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 326 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 0.88 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.67 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 181 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 us10004a3m Id of event.
Event Code 10004a3m An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004a3m, A comma-separated list of event ids that are associated to an event.

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