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


Earthquake location -31.0664S, -71.8708WA light earthquake magnitude 4.1 (ml/mb) has struck on Friday, 82 kilometers (51 miles) from Ovalle in Chile. Exact time and date of earthquake 18/09/15 / 2015-09-18 17:27:16 / September 18, 2015 @ 5:27 pm UTC/GMT. Exact location of earthquake, longitude -71.8708 West, latitude -31.0664 South, depth = 20.18 km. Unique identifier: us20003lde. Ids that are associated to the event: us20003lde. The epicenter was at a depth of 20.18 km (13 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was picked up at 14:27:16 / 2:27 pm (local time epicenter).

Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). Closest city/cities/towns to epicentrum/hypocenter was Illapel, Ovalle (min 5000 pop). Epicenter of the earthquake was 82 km (51 miles) from Ovalle (c. 77 100 pop), 92 km (57 miles) from Illapel (c. 22 800 pop).

In the past 24 hours, there have been thirty, in the last 10 days eighty, in the past 30 days eighty and in the last 365 days ninety-seven earthquakes of magnitude 3.0 or greater that have been detected nearby. 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.

Did you feel it?

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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 82 km SW of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -71.8708° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.0664° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.18 km Depth of the event in kilometers.
Place 82km SW of Ovalle, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-09-18 17:27:16 Time when the event occurred. UTC/GMT
Updated 2015-09-18 18:03:45 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 0.44 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 85 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type mwr The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us20003lde Id of event.
Event Code 20003lde An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20003lde, A comma-separated list of event ids that are associated to an event.

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