Light earthquake 4.8 mag, central Mid-Atlantic Ridge

A light earthquake magnitude 4.8 (ml/mb) has occurred on Wednesday, central Mid-Atlantic Ridge (0 miles). The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Global date and time of event UTC/GMT: 20/08/25 / 2025-08-20 05:55:29 / August 20, 2025 @ 5:55 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of event, longitude -32.9347 West, latitude 5.5058 North, depth = 10 km. The temblor was detected at 05:55:29 / 5:55 am (local time epicenter). Id of earthquake: us6000r299. Event ids that are associated: us6000r299.

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 one, in the past 30 days one and in the last 365 days one earthquakes of magnitude 3.0 or greater that has occurred nearby. Each year there are an estimated 13,000 light quakes in the world.

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How did you respond? Did any furniture slide, topple over, or become displaced? Leave a comment or report about activity, shaking and damage at your home, city 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: central Mid-Atlantic Ridge.

Central Mid-Atlantic Ridge

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Parameter	Value	Description
Magnitude	4.8 mb	The magnitude for the event.
Longitude	-32.9347° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	5.5058° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10 km	Depth of the event in kilometers.
Place	central Mid-Atlantic Ridge	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-08-20 05:55:29	Time when the event occurred. UTC/GMT
Updated	2025-08-20 06:19:18	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	354	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	24	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	11.64	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	77	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	us6000r299	Id of event.
Event Code	6000r299	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000r299,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4.8 mag, central Mid-Atlantic Ridge

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