Light earthquake: M4.9 quake has struck near San Francisco del Mar Viejo in Mexico

A light earthquake magnitude 4.9 (ml/mb) strikes 71 kilometers (44 miles) from San Francisco del Mar Viejo in Mexico on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 47.59 km (30 miles). The temblor was picked up at 09:30:22 / 9:30 am (local time epicenter). Exact time and date of event in UTC/GMT: 23/02/21 / 2021-02-23 09:30:22 / February 23, 2021 @ 9:30 am. Event id: us6000dkcp. Ids that are associated to the earthquake: us6000dkcp. Exact location of event, depth 47.59 km, -94.6837° West, 15.5835° North.

The epicenter was 87 km (54 miles) from Salina Cruz (c. 73 600 pop), 101 km (63 miles) from Juchitán de Zaragoza (c. 67 600 pop), 102 km (63 miles) from Santo Domingo Tehuantepec (c. 37 400 pop), 100 km (62 miles) from Unión Hidalgo (c. 12 700 pop), 96 km (60 miles) from Chahuite (c. 9 800 pop), 87 km (54 miles) from Las Amilpas (c. 8 800 pop), 102 km (63 miles) from San Pedro Tapanatepec (c. 7 200 pop). Nearest cities/city/villages to epicentrum/hypocenter was San Pedro Tapanatepec, Santo Domingo Tehuantepec, Paredón (min 5000 pop). Nearby country/countries, Mexico (c. 112 469 000 pop) (That might be effected).

In the past 24 hours, there have been one, in the last 10 days one, in the past 30 days three and in the last 365 days thirty-seven earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage. There are an estimated 13,000 light quakes in the world each year.

Questions or comments?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 71 km S of San Francisco del Mar Viejo, Mexico. This information comes from the USGS Earthquake Notification Service.

Chahuite Juchitán de Zaragoza Las Amilpas Mexico Paredon Salina Cruz San Francisco del Mar Viejo San Pedro Tapanatepec Santo Domingo Tehuantepec Unión Hidalgo

More information

Parameter	Value	Description
Magnitude	4.9 mb	The magnitude for the event.
Longitude	-94.6837° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	15.5835° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	47.59 km	Depth of the event in kilometers.
Place	71 km S of San Francisco del Mar Viejo, Mexico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2021-02-23 09:30:22	Time when the event occurred. UTC/GMT
Updated	2021-02-23 09:45:28	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	369	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		The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.546	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.12 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	139	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	us6000dkcp	Id of event.
Event Code	6000dkcp	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000dkcp,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.9 mb

The magnitude for the event.

Longitude

-94.6837° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

15.5835° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

47.59 km

Depth of the event in kilometers.

Place

71 km S of San Francisco del Mar Viejo, Mexico

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

Time

2021-02-23 09:30:22

Time when the event occurred. UTC/GMT

Updated

2021-02-23 09:45:28

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

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

369

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

2.546

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

Root Mean Square

1.12 sec

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

Azimuthal Gap

139

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

Magnitude Type

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

Event Type

earthquake

Type of seismic event.

Event ID

us6000dkcp

Id of event.

Event Code

6000dkcp

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

Event IDS

,us6000dkcp,

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

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Light earthquake: M4.9 quake has struck near San Francisco del Mar Viejo in Mexico

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