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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag was detected near Ovalle in Chile



Earthquake location -30.9594S, -71.9131WA light earthquake magnitude 4.2 (ml/mb) has occurred on Thursday, 79 kilometers (49 miles) from Ovalle in Chile. The earthquake occurred at a depth of 18.28 km (11 miles) below the earth’s surface. Id of earthquake: us10003jal. Event ids that are associated: us10003jal. Exact location of event, depth 18.28 km, -71.9131° West, -30.9594° South. The temblor was picked up at 05:51:31 / 5:51 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Date and time of earthquake in UTC/GMT: 17/09/15 / 2015-09-17 08:51:31 / September 17, 2015 @ 8:51 am.

Nearby country/countries that might be effected, Chile (c. 16 746 000 pop). The epicenter was 79 km (49 miles) from Ovalle (c. 77 100 pop). Nearest cities/city/towns to hypocenter/epicentrum was Ovalle (min 5000 pop).

Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. In the past 24 hours, there have been two hundred and fifty-four, in the last 10 days two hundred and fifty-four, in the past 30 days two hundred and fifty-four and in the last 365 days two hundred and seventy-one earthquakes of magnitude 3.0 or greater that was reported nearby.

Questions or comments?

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. 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: 79 km WSW of Ovalle, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -71.9131° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -30.9594° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 18.28 km Depth of the event in kilometers.
Place 79km WSW 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 2015-09-17 08:51:31 Time when the event occurred. UTC/GMT
Updated 2015-10-04 13:22:03 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 271 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 0.371 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.96 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 204 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 us10003jal Id of event.
Event Code 10003jal An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003jal, A comma-separated list of event ids that are associated to an event.

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