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Earthquake breaking news, Moderate World Earthquakes Magnitude 5–5.9

Moderate earthquake, 5.2 mag has occurred near South Sandwich Islands region

Posted by admin on October 21, 2025 0 Comments

Earthquake location -58.9775S, -25.7015WA moderate earthquake magnitude 5.2 (ml/mb) has occurred on Tuesday, South Sandwich Islands region (0 miles). The earthquake was roughly at a depth of 79.271 km (49 miles). The temblor was picked up at 18:11:08 / 6:11 pm (local time epicenter). Unique identifier: us6000rii9. Ids that are associated to the event: us6000rii9. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, depth 79.271 km, -25.7015° West, -58.9775° South. Exact time and date of earthquake 21/10/25 / 2025-10-21 18:11:08 / October 21, 2025 @ 6:11 pm UTC/GMT.

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 sixty-six earthquakes of magnitude 3.0 or greater that have been detected in the same area. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Every year there are an estimated 1320 moderate earthquakes in the world.

Questions or comments?

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: South Sandwich Islands region.

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More information

Parameter Value Description
Magnitude 5.2 mb The magnitude for the event.
Longitude -25.7015° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -58.9775° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 79.271 km Depth of the event in kilometers.
Place South Sandwich Islands region Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-10-21 18:11:08 Time when the event occurred. UTC/GMT
Updated 2025-10-21 18:29:18 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 416 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 51 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 7.579 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.65 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 86 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 us6000rii9 Id of event.
Event Code 6000rii9 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rii9, A comma-separated list of event ids that are associated to an event.

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