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Light earthquake: M4 quake has struck near Ovalle in Chile


Earthquake location -30.55S, -71.0886WA light earthquake magnitude 4 (ml/mb) has occurred on Thursday, 11 kilometers (7 miles) from Ovalle in Chile. The earthquake was roughly at a depth of 82.81 km (51 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 82.81 km, -71.0886° West, -30.55° South. The temblor was reported at 21:27:52 / 9:27 pm (local time epicenter). Event ids that are associated to the earthquake: us20007ch8. Id of event: us20007ch8. Exact time and date of event in UTC/GMT: 07/10/16 / 2016-10-07 01:27:52 / October 7, 2016 @ 1:27 am.

Closest city/cities/towns to epicentrum/hypocenter was La Serena, Coquimbo, Vicuña (min 5000 pop). Nearby country/countries, Chile (c. 16 746 000 pop) (That might be effected). Event epicenter was 71 km (44 miles) from Coquimbo (c. 161 300 pop), 73 km (46 miles) from La Serena (c. 154 500 pop), 12 km (7 miles) from Ovalle (c. 77 100 pop), 20 km (13 miles) from Monte Patria (c. 13 900 pop), 68 km (42 miles) from Vicuña (c. 13 500 pop).

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

How would you describe the shaking?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 11 km ENE of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -71.0886° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.55° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 82.81 km Depth of the event in kilometers.
Place 11km ENE 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 2016-10-07 01:27:52 Time when the event occurred. UTC/GMT
Updated 2016-10-07 21:12:24 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 0.448 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.72 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 93 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 us20007ch8 Id of event.
Event Code 20007ch8 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20007ch8, A comma-separated list of event ids that are associated to an event.

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