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Light earthquake: M4 quake has struck near Illapel in Chile


Earthquake location -31.8166S, -71.5483WA light earthquake magnitude 4 (ml/mb) strikes 41 kilometers (25 miles) from Illapel in Chile on Monday. The earthquake was roughly at a depth of 35 km (22 miles). Unique identifier: us70006363. Ids that are associated to the event: us70006363. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -71.5483 West, latitude -31.8166 South, depth = 35 km. Exact time and date of earthquake 04/11/19 / 2019-11-04 23:07:11 / November 4, 2019 @ 11:07 pm UTC/GMT. The temblor was reported at 19:07:11 / 7:07 pm (local time epicenter).

Close country/countries that might be effected, Chile (c. 16 746 000 pop). Event epicenter was 77 km (48 miles) from La Ligua (c. 24 900 pop), 41 km (26 miles) from Illapel (c. 22 800 pop), 55 km (34 miles) from Salamanca (c. 13 300 pop). Closest city/cities/towns to epicentrum/hypocenter was La Ligua, Salamanca, Illapel (min 5000 pop).

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

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 41 km WSW of Illapel, Chile.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude -71.5483° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.8166° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 41km WSW 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 2019-11-04 23:07:11 Time when the event occurred. UTC/GMT
Updated 2019-11-04 23:31:27 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 0.769 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1.03 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 105 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 us70006363 Id of event.
Event Code 70006363 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70006363, A comma-separated list of event ids that are associated to an event.

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