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Light earthquake, 4.5 mag strikes near Arica in Chile


Earthquake location -18.5665S, -69.5537WA light earthquake magnitude 4.5 (ml/mb) strikes 79 kilometers (49 miles) from Arica in Chile on Sunday. Exact time and date of event in UTC/GMT: 10/01/21 / 2021-01-10 03:27:50 / January 10, 2021 @ 3:27 am. Exact location of earthquake, -69.5537° West, -18.5665° South, depth 118.5 km. The temblor was picked up at 03:27:50 / 3:27 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000d74n. Event ids that are associated: us6000d74n. The earthquake occurred at a depth of 118.5 km (74 miles) below the earth’s surface.

Epicenter of the earthquake was 96 km (60 miles) from Tacna (c. 280 100 pop), 79 km (49 miles) from Arica (c. 186 000 pop). Closest city/cities/towns to epicentrum/hypocenter was Tacna, Arica (min 5000 pop). Close country/countries, Chile (c. 16 746 000 pop), Peru (c. 29 907 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days fourty-four earthquakes of magnitude 3.0 or greater that was reported 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.

Did you feel the quake?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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 E of Arica, Chile.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -69.5537° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -18.5665° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 118.5 km Depth of the event in kilometers.
Place 79 km E of Arica, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2021-01-10 03:27:50 Time when the event occurred. UTC/GMT
Updated 2021-01-10 03:56:24 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 312 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 0.736 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.74 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 70 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 us6000d74n Id of event.
Event Code 6000d74n An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000d74n, A comma-separated list of event ids that are associated to an event.

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