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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.6 mag, 50 km W of Ovalle, Chile

Earthquake location -30.5887S, -71.7248WA light earthquake magnitude 4.6 (ml/mb) has occurred on Monday, 50 kilometers (31 miles) from Ovalle in Chile. The earthquake occurred at a depth of 20.11 km (12 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -71.7248° West, latitude -30.5887° South, depth = 20.11 km. All ids that are associated to the event: us10003n20. Unique identifier: us10003n20. Date and time of earthquake in UTC/GMT: 12/10/15 / 2015-10-12 16:46:43 / October 12, 2015 @ 4:46 pm. The temblor was detected at 13:46:43 / 1:46 pm (local time epicenter).

Event epicenter was 80 km (50 miles) from Coquimbo (c. 161 300 pop), 89 km (55 miles) from La Serena (c. 154 500 pop), 50 km (31 miles) from Ovalle (c. 77 100 pop), 74 km (46 miles) from Monte Patria (c. 13 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was La Serena, Coquimbo, Monte Patria. Country/countries that might be effected, Chile (c. 16 746 000 pop).

In the past 24 hours, there have been eighteen, in the last 10 days fourty-four, in the past 30 days two hundred and seventy-two and in the last 365 days two hundred and ninety-three earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Each year there are an estimated 13,000 light quakes in the world.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 50 km W of Ovalle, Chile. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -71.7248° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.5887° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 20.11 km Depth of the event in kilometers.
Place 50km W 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 2015-10-12 16:46:43 Time when the event occurred. UTC/GMT
Updated 2015-10-18 16:10:46 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 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 0.114 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.95 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 76 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 us10003n20 Id of event.
Event Code 10003n20 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003n20, A comma-separated list of event ids that are associated to an event.

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