Moderate earthquake, 5.3 mag has occurred near El Morro in Mexico

A moderate earthquake magnitude 5.3 (ml/mb) has struck on Thursday, 1 kilometers (1 miles) from El Morro in Mexico. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 5.3-magnitude earthquake was detected at 03:45:09 / 3:45 am (local time epicenter). Exact time and date of earthquake 04/12/25 / 2025-12-04 03:45:09 / December 4, 2025 @ 3:45 am UTC/GMT. All ids that are associated to the event: us7000rfg4. Unique identifier: us7000rfg4. Exact location of earthquake, longitude -95.3963 West, latitude 16.1043 North, depth = 62.608 km. The earthquake occurred at a depth of 62.608 km (39 miles).

Close country/countries that might be effected, Mexico (c. 112 469 000 pop). Event epicenter was 23 km (14 miles) from Salina Cruz (c. 73 600 pop), 55 km (34 miles) from Juchitán de Zaragoza (c. 67 600 pop), 30 km (18 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 61 km (38 miles) from San Jerónimo Ixtepec (c. 23 200 pop), 94 km (59 miles) from Matías Romero (c. 21 100 pop), 87 km (54 miles) from Crucecita (c. 15 100 pop), 73 km (45 miles) from Unión Hidalgo (c. 12 700 pop). Nearest cities/city/towns to hypocenter/epicentrum was Santa María Huatulco, San Francisco Ixhuatan, Colonia Rincón Viejo (min 5000 pop).

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 twelve earthquakes of magnitude 3.0 or greater that has struck near. Every year there are an estimated 1320 moderate earthquakes in the world. Earthquakes 5.0 to 6.0 may cause light damage to buildings and other structures.

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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: 1 km WNW of El Morro, Mexico. This data comes from the USGS Earthquake Notification Service.

More information

Parameter	Value	Description
Magnitude	5.3 mb	The magnitude for the event.
Longitude	-95.3963° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	16.1043° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	62.608 km	Depth of the event in kilometers.
Place	1 km WNW of El Morro, Mexico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-12-04 03:45:09	Time when the event occurred. UTC/GMT
Updated	2025-12-04 04:00:47	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	3	The total number of felt reports
CDI	3.8	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	433	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	39	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	3.137	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.88 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	137	The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type	mww	The method or algorithm used to calculate the preferred magnitude for the event.
Event Type	earthquake	Type of seismic event.
Event ID	us7000rfg4	Id of event.
Event Code	7000rfg4	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us7000rfg4,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

5.3 mb

The magnitude for the event.

Longitude

-95.3963° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

16.1043° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

62.608 km

Depth of the event in kilometers.

Place

1 km WNW of El Morro, Mexico

Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.

Time

2025-12-04 03:45:09

Time when the event occurred. UTC/GMT

Updated

2025-12-04 04:00:47

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

3.8

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

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

433

A number describing how significant the event is. Larger numbers indicate a more significant event.

Network

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

The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.

Horizontal Distance

3.137

Horizontal distance from the epicenter to the nearest station (in degrees).

Root Mean Square

0.88 sec

The root-mean-square (RMS) travel time residual, in sec, using all weights.

Azimuthal Gap

137

The largest azimuthal gap between azimuthally adjacent stations (in degrees).

Magnitude Type

mww

The method or algorithm used to calculate the preferred magnitude for the event.

Event Type

earthquake

Type of seismic event.

Event ID

us7000rfg4

Id of event.

Event Code

7000rfg4

An identifying code assigned by, and unique from, the corresponding source for the event.

Event IDS

,us7000rfg4,

A comma-separated list of event ids that are associated to an event.

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Moderate earthquake, 5.3 mag has occurred near El Morro in Mexico

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