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Light earthquake: M4.5 quake has struck near Ushuaia in Argentina

Posted by admin on August 17, 2025 0 Comments

Earthquake location -57.3474S, -66.9371WA light earthquake magnitude 4.5 (ml/mb) strikes 295 km SSE of Ushuaia, Argentina (183 miles) on Sunday. Exact location of event, depth 10 km, -66.9371° West, -57.3474° South. The 4.5-magnitude earthquake was detected at 10:48:13 / 10:48 am (local time epicenter). Global date and time of event UTC/GMT: 17/08/25 / 2025-08-17 10:48:13 / August 17, 2025 @ 10:48 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 10 km (6 miles). Event ids that are associated to the earthquake: us6000r1q2. Id of event: us6000r1q2.

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

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 295 km SSE of Ushuaia, Argentina.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -66.9371° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -57.3474° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 295 km SSE of Ushuaia, Argentina Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-08-17 10:48:13 Time when the event occurred. UTC/GMT
Updated 2025-08-17 11:06:36 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 40 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.452 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.51 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 143 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 us6000r1q2 Id of event.
Event Code 6000r1q2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000r1q2, A comma-separated list of event ids that are associated to an event.

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