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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag has occurred near San Antonio de los Cobres in Argentina

Posted by admin on September 21, 2025 0 Comments

Earthquake location -23.4984S, -66.8286WA light earthquake with magnitude 4.4 (ml/mb) was reported 95 km NNW of San Antonio de los Cobres, Argentina (59 miles) on Sunday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of earthquake 31/08/25 / 2025-08-31 20:03:53 / August 31, 2025 @ 8:03 pm UTC/GMT. Exact location of earthquake, -66.8286° West, -23.4984° South, depth 199.779 km. The 4.4-magnitude earthquake has occurred at 20:03:53 / 8:03 pm (local time epicenter). The earthquake occurred at a depth of 199.779 km (124 miles). Event id: us7000qsvw. Ids that are associated to the earthquake: us7000qsvw.

In the past 24 hours, there have been fifteen, in the last 10 days eighteen, in the past 30 days twenty-two and in the last 365 days one hundred and fourty-two earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

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. 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: 95 km NNW of San Antonio de los Cobres, Argentina.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -66.8286° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.4984° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 199.779 km Depth of the event in kilometers.
Place 95 km NNW of San Antonio de los Cobres, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-31 20:03:53 Time when the event occurred. UTC/GMT
Updated 2025-09-21 16:24:19 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 298 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 23 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.356 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 81 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 us7000qsvw Id of event.
Event Code 7000qsvw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qsvw, A comma-separated list of event ids that are associated to an event.

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