Light earthquake, 4.4 mag has occurred near Chahuite in Mexico

A light earthquake with magnitude 4.4 (ml/mb) was detected on Friday, 19 kilometers (12 miles) from Chahuite in Mexico. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The temblor was detected at 01:06:25 / 1:06 am (local time epicenter). Global date and time of event UTC/GMT: 21/07/17 / 2017-07-21 07:06:25 / July 21, 2017 @ 7:06 am. Exact location, longitude -94.308° West, latitude 16.1687° North, depth = 98.64 km. Unique identifier: us20009yul. Ids that are associated to the event: us20009yul. The earthquake occurred at a depth of 98.64 km (61 miles).

Country/countries that might be effected, Mexico (c. 112 469 000 pop). Epicenter of the event was 82 km (51 miles) from Juchitán de Zaragoza (c. 67 600 pop), 85 km (53 miles) from Cintalapa de Figueroa (c. 33 500 pop), 60 km (37 miles) from Tonalá (c. 32 900 pop), 44 km (27 miles) from Arriaga (c. 22 800 pop), 65 km (40 miles) from Unión Hidalgo (c. 12 700 pop), 90 km (56 miles) from Jiquipilas (c. 9 900 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Jiquipilas, Asunción Ixtaltepec, El Espinal.

Each year there are an estimated 13,000 light quakes in the world. 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 two and in the last 365 days twenty-four earthquakes of magnitude 3.0 or greater that have been detected nearby.

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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. The information in this article comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, detected near: 19 km SW of Chahuite, Mexico.

More information

Parameter	Value	Description
Magnitude	4.4 mb	The magnitude for the event.
Longitude	-94.308° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	16.1687° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	98.64 km	Depth of the event in kilometers.
Place	19km SW of Chahuite, Mexico	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2017-07-21 07:06:25	Time when the event occurred. UTC/GMT
Updated	2017-07-21 07:20:03	Time when the event was most recently updated. UTC/GMT
Timezone offset	-360	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	298	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	2.83	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.04 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	182	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	us20009yul	Id of event.
Event Code	20009yul	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us20009yul,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.4 mb

The magnitude for the event.

Longitude

-94.308° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

16.1687° North

Decimal degrees latitude. Negative values for southern latitudes.

Depth

98.64 km

Depth of the event in kilometers.

Place

19km SW of Chahuite, Mexico

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

Time

2017-07-21 07:06:25

Time when the event occurred. UTC/GMT

Updated

2017-07-21 07:20:03

Time when the event was most recently updated. UTC/GMT

Timezone offset

-360

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

298

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

2.83

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

Root Mean Square

1.04 sec

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

Azimuthal Gap

182

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

us20009yul

Id of event.

Event Code

20009yul

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

Event IDS

,us20009yul,

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

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Light earthquake, 4.4 mag has occurred near Chahuite in Mexico

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