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Light earthquake: M4 quake has struck near Ovalle in Chile

Earthquake location -31.082S, -71.334WA light earthquake magnitude 4 (ml/mb) has occurred on Friday, 55 kilometers (34 miles) from Ovalle in Chile. The 4-magnitude earthquake was detected at 17:02:40 / 5:02 pm (local time epicenter). Exact time and date of event in UTC/GMT: 02/10/15 / 2015-10-02 20:02:40 / October 2, 2015 @ 8:02 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude -71.334 West, latitude -31.082 South, depth = 58.3 km. The earthquake was roughly at a depth of 58.3 km (36 miles). Event id: us10003jw7. Ids that are associated to the earthquake: us10003jw7.

Nearest cities/city/towns to hypocenter/epicentrum was Salamanca, Illapel, Monte Patria (min 5000 pop). Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). The epicenter was 55 km (34 miles) from Ovalle (c. 77 100 pop), 63 km (39 miles) from Illapel (c. 22 800 pop), 56 km (35 miles) from Monte Patria (c. 13 900 pop), 85 km (53 miles) from Salamanca (c. 13 300 pop).

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

Did you feel it?

How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking 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: 55 km SSW of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -71.334° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.082° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 58.3 km Depth of the event in kilometers.
Place 55km SSW 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 2015-10-02 20:02:40 Time when the event occurred. UTC/GMT
Updated 2015-10-03 16:46:29 Time when the event was most recently updated. UTC/GMT
Timezone offset -180 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 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 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 ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID us10003jw7 Id of event.
Event Code 10003jw7 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003jw7, A comma-separated list of event ids that are associated to an event.

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