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Light earthquake: M4.1 quake has struck near Coquimbo in Chile

Posted by admin on September 20, 2015 0 Comments

Earthquake location -30.4112S, -72.6935WA light earthquake magnitude 4.1 (ml/mb) has occurred on Saturday, 139 km WSW of Coquimbo, Chile (86 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 20/09/15 / 2015-09-20 01:12:35 / September 20, 2015 @ 1:12 am UTC/GMT. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Exact location of earthquake, -72.6935° West, -30.4112° South, depth 10 km. Unique identifier: us20003m2b. Ids that are associated to the event: us20003m2b. The temblor was picked up at 20:12:35 / 8:12 pm (local time epicenter).

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

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 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: 139 km WSW of Coquimbo, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -72.6935° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.4112° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 139km WSW 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 2015-09-20 01:12:35 Time when the event occurred. UTC/GMT
Updated 2015-09-20 03:04:15 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 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 0.949 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 141 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 us20003m2b Id of event.
Event Code 20003m2b An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003m2b, A comma-separated list of event ids that are associated to an event.

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