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Light earthquake: M4.5 quake has struck near Ollagüe in Chile

Posted by admin on December 1, 2025 0 Comments

Earthquake location -21.2022S, -68.7331WA light earthquake magnitude 4.5 (ml/mb) strikes 49 km W of Ollagüe, Chile (30 miles) on Monday. All ids that are associated to the event: us7000reva. Unique identifier: us7000reva. Exact location of earthquake, longitude -68.7331 West, latitude -21.2022 South, depth = 115.453 km. The earthquake occurred at a depth of 115.453 km (72 miles) below the earth’s surface. The temblor was picked up at 12:29:11 / 12:29 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Global date and time of event UTC/GMT: 01/12/25 / 2025-12-01 12:29:11 / December 1, 2025 @ 12:29 pm.

Each year there are an estimated 13,000 light earthquakes in the world. In the past 24 hours, there have been one, in the last 10 days six, in the past 30 days ten and in the last 365 days one hundred and twenty earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

How would you describe the shaking?

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. 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: 49 km W of Ollagüe, Chile.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -68.7331° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -21.2022° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 115.453 km Depth of the event in kilometers.
Place 49 km W of Ollagüe, Chile Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-12-01 12:29:11 Time when the event occurred. UTC/GMT
Updated 2025-12-01 12:57:13 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 65 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.722 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.69 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 42 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 us7000reva Id of event.
Event Code 7000reva An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000reva, A comma-separated list of event ids that are associated to an event.

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