Moderate earthquake, 5.1 mag strikes near Ascension Island

A moderate earthquake magnitude 5.1 (ml/mb) strikes north of Ascension Island (0 miles) on Tuesday. All ids that are associated to the event: us6000qu3g. Unique identifier: us6000qu3g. The earthquake occurred at a depth of 10 km (6 miles) below the earth’s surface. The temblor was picked up at 06:38:16 / 6:38 am (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -12.3963 West, latitude -4.6955 South, depth = 10 km. Exact time and date of event in UTC/GMT: 22/07/25 / 2025-07-22 06:38:16 / July 22, 2025 @ 6:38 am.

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

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. This data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: north of Ascension Island.

Ascension Island

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Parameter	Value	Description
Magnitude	5.1 mb	The magnitude for the event.
Longitude	-12.3963° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-4.6955° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	north of Ascension Island	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-07-22 06:38:16	Time when the event occurred. UTC/GMT
Updated	2025-07-22 06:53:47	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	400	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	66	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	3.762	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.61 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	50	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	us6000qu3g	Id of event.
Event Code	6000qu3g	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000qu3g,	A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.1 mag strikes near Ascension Island

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