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Light earthquake: M4.1 quake has struck near Illapel in Chile


Earthquake location -31.8193S, -71.752WA light earthquake with magnitude 4.1 (ml/mb) was reported 58 kilometers (36 miles) from Illapel in Chile on Monday. The earthquake was roughly at a depth of 53.52 km (33 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 04:39:23 / 4:39 am (local time epicenter). Exact location, longitude -71.752° West, latitude -31.8193° South, depth = 53.52 km. Exact time and date of earthquake 07/09/20 / 2020-09-07 04:39:23 / September 7, 2020 @ 4:39 am UTC/GMT. All ids that are associated to the event: us7000bj61. Unique identifier: us7000bj61.

Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was La Ligua, Salamanca, Illapel. The epicenter was 86 km (53 miles) from La Ligua (c. 24 900 pop), 59 km (37 miles) from Illapel (c. 22 800 pop), 75 km (46 miles) from Salamanca (c. 13 300 pop).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days two and in the last 365 days thirty-six earthquakes of magnitude 3.0 or greater that has struck near. Each 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 the quake?

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 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: 58 km WSW of Illapel, Chile.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -71.752° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -31.8193° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 53.52 km Depth of the event in kilometers.
Place 58 km 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 2020-09-07 04:39:23 Time when the event occurred. UTC/GMT
Updated 2020-09-07 04:56:49 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 259 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 0.697 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.5 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 151 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 us7000bj61 Id of event.
Event Code 7000bj61 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000bj61, A comma-separated list of event ids that are associated to an event.

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