Moderate earthquake 5.6 mag, South Sandwich Islands region

A moderate earthquake with magnitude 5.6 (ml/mb) was detected on Saturday, South Sandwich Islands region (0 miles). The temblor was reported at 11:32:09 / 11:32 am (local time epicenter). The earthquake was roughly at a depth of 27.745 km (17 miles). Global time and date of event 05/04/25 / 2025-04-05 11:32:09 / April 5, 2025 @ 11:32 am UTC/GMT. Exact location of event, longitude -25.5723 West, latitude -57.272 South, depth = 27.745 km. Event ids that are associated to the earthquake: us6000q48h. Id of event: us6000q48h. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been two, in the last 10 days two, in the past 30 days five and in the last 365 days fourty-two earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures. Each year there are an estimated 1320 moderate quakes in the world.

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

South Sandwich Islands region

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Parameter	Value	Description
Magnitude	5.6 mb	The magnitude for the event.
Longitude	-25.5723° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-57.272° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	27.745 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	2025-04-05 11:32:09	Time when the event occurred. UTC/GMT
Updated	2025-04-05 11:48:32	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	482	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	45	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	17.258	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.98 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	85	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	us6000q48h	Id of event.
Event Code	6000q48h	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q48h,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake 5.6 mag, South Sandwich Islands region

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