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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.2 mag strikes near Illapel in Chile



Earthquake location -31.185S, -71.713WA light earthquake with magnitude 4.2 (ml/mb) was detected on Monday, 71 kilometers (44 miles) from Illapel in Chile. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us10003pu0. Ids that are associated to the event: us10003pu0. The 4.2-magnitude earthquake has occurred at 19:34:49 / 7:34 pm (local time epicenter). Global date and time of event UTC/GMT: 19/10/15 / 2015-10-19 22:34:49 / October 19, 2015 @ 10:34 pm. The earthquake occurred at a depth of 32.3 km (20 miles). Exact location of event, longitude -71.713 West, latitude -31.185 South, depth = 32.3 km.

Nearest cities/city/towns to hypocenter/epicentrum was Monte Patria, Ovalle, Illapel (min 5000 pop). Country/countries that might be effected, Chile (c. 16 746 000 pop). The epicenter was 81 km (51 miles) from Ovalle (c. 77 100 pop), 72 km (45 miles) from Illapel (c. 22 800 pop), 90 km (56 miles) from Monte Patria (c. 13 900 pop).

In the past 24 hours, there have been thirteen, in the last 10 days thirty-six, in the past 30 days one hundred and ninety-three and in the last 365 days three hundred and seventy-nine earthquakes of magnitude 3.0 or greater that was reported nearby. 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.

Did you feel it?

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 71 km NW of Illapel, Chile.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude -71.713° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.185° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 32.3 km Depth of the event in kilometers.
Place 71km NW of Illapel, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2015-10-19 22:34:49 Time when the event occurred. UTC/GMT
Updated 2015-10-29 00:40:28 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 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 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 us10003pu0 Id of event.
Event Code 10003pu0 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10003pu0, A comma-separated list of event ids that are associated to an event.

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