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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.3 mag was detected near South Sandwich Islands region

Posted by admin on November 8, 2025 0 Comments

Earthquake location -56.4636S, -27.1634WA light earthquake magnitude 4.3 (ml/mb) has struck on Sunday, South Sandwich Islands region (0 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us6000rm52. Unique identifier: us6000rm52. The 4.3-magnitude earthquake was detected at 05:42:58 / 5:42 am (local time epicenter). Global date and time of event UTC/GMT: 19/10/25 / 2025-10-19 05:42:58 / October 19, 2025 @ 5:42 am. The epicenter was at a depth of 104.503 km (65 miles). Exact location of event, longitude -27.1634 West, latitude -56.4636 South, depth = 104.503 km.

In the past 24 hours, there have been five, in the last 10 days eight, in the past 30 days twelve and in the last 365 days seventy-three 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. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel it?

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. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: South Sandwich Islands region.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude -27.1634° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -56.4636° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 104.503 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 2025-10-19 05:42:58 Time when the event occurred. UTC/GMT
Updated 2025-11-08 06:50:33 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 284 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 26 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 5.748 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.66 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 170 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 us6000rm52 Id of event.
Event Code 6000rm52 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rm52, A comma-separated list of event ids that are associated to an event.

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