Light earthquake: M4.7 quake has struck near La Ligua in Chile

A light earthquake with magnitude 4.7 (ml/mb) was reported 27 kilometers (17 miles) from La Ligua in Chile on Saturday. Unique identifier: us6000r3as. Ids that are associated to the event: us6000r3as. Date and time of earthquake in UTC/GMT: 23/08/25 / 2025-08-23 09:07:59 / August 23, 2025 @ 9:07 am. The 4.7-magnitude earthquake was detected at 09:07:59 / 9:07 am (local time epicenter). Exact location of event, depth 53.111 km, -71.5221° West, -32.5045° South. The epicenter of the earthquake was roughly 53.111 km (33 miles) below the earth’s surface. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Close country/countries, Chile (c. 16 746 000 pop) (That might be effected). Nearest cities/city/villages to epicentrum/hypocenter was Salamanca, Los Andes, San Felipe (min 5000 pop). Earthquake epicenter was 58 km (36 miles) from Viña del Mar (c. 294 600 pop), 60 km (37 miles) from Valparaíso (c. 282 400 pop), 61 km (38 miles) from Quilpué (c. 130 300 pop), 61 km (38 miles) from Villa Alemana (c. 97 300 pop), 49 km (31 miles) from Quillota (c. 67 800 pop), 79 km (49 miles) from San Felipe (c. 59 300 pop), 94 km (58 miles) from Los Andes (c. 56 900 pop).

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 thirty-one earthquakes of magnitude 3.0 or greater that has struck near.

Did you feel the quake?

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: 27 km WSW of La Ligua, Chile.

Chile La Ligua Los Andes Quillota Quilpue Salamanca San Felipe Valparaiso Villa Alemana Vina del Mar

More information

Parameter	Value	Description
Magnitude	4.7 mb	The magnitude for the event.
Longitude	-71.5221° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-32.5045° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	53.111 km	Depth of the event in kilometers.
Place	27 km WSW of La Ligua, Chile	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-08-23 09:07:59	Time when the event occurred. UTC/GMT
Updated	2025-08-23 09:49:07	Time when the event was most recently updated. UTC/GMT
Timezone offset		Timezone offset from UTC in minutes at the event epicenter.
Felt	2	The total number of felt reports
CDI	3.4	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	341	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	49	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.527	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.84 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	133	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	us6000r3as	Id of event.
Event Code	6000r3as	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000r3as,	A comma-separated list of event ids that are associated to an event.

Parameter

Value

Description

Magnitude

4.7 mb

The magnitude for the event.

Longitude

-71.5221° West

Decimal degrees longitude. Negative values for western longitudes.

Latitude

-32.5045° South

Decimal degrees latitude. Negative values for southern latitudes.

Depth

53.111 km

Depth of the event in kilometers.

Place

27 km WSW of La Ligua, Chile

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

Time

2025-08-23 09:07:59

Time when the event occurred. UTC/GMT

Updated

2025-08-23 09:49:07

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

3.4

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

341

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

0.527

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

Root Mean Square

0.84 sec

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

Azimuthal Gap

133

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

us6000r3as

Id of event.

Event Code

6000r3as

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

Event IDS

,us6000r3as,

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

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Light earthquake: M4.7 quake has struck near La Ligua in Chile

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