Earthquake breaking news, Minor World Earthquakes Magnitude -3.9

Minor earthquake 3.9 mag, 11 km NE of Melipilla, Chile

Posted by admin on October 22, 2025 0 Comments

A minor earthquake with magnitude 3.9 (ml/mb) was detected on Wednesday, 11 kilometers (7 miles) from Melipilla in Chile. Exact location of earthquake, -71.147° West, -33.6069° South, depth 69.802 km. Global time and date of event 22/10/25 / 2025-10-22 03:18:44 / October 22, 2025 @ 3:18 am UTC/GMT. The earthquake occurred at a depth of 69.802 km (43 miles) below the earth’s surface. The temblor was detected at 03:18:44 / 3:18 am (local time epicenter). Event id: us6000riky. Ids that are associated to the earthquake: us6000riky.

Nearby country/countries that might be effected, Chile (c. 16 746 000 pop). Nearest cities/city/towns to hypocenter/epicentrum was Llaillay, Quillota, Machalí (min 5000 pop). The epicenter was 49 km (31 miles) from Santiago (c. 4 837 300 pop), 53 km (33 miles) from Puente Alto (c. 510 400 pop), 75 km (47 miles) from Viña del Mar (c. 294 600 pop), 77 km (48 miles) from Valparaíso (c. 282 400 pop), 41 km (26 miles) from San Bernardo (c. 249 900 pop), 73 km (45 miles) from Rancagua (c. 212 700 pop).

Earthquakes 3.0 to 4.0 are often felt, but only causes minor damage. There are an estimated 130,000 minor quakes in the world each year. 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-one earthquakes of magnitude 3.0 or greater that have been detected in the same area.

How would you describe the shaking?

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. 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: 11 km NE of Melipilla, Chile.

More information

Parameter	Value	Description
Magnitude	3.9 mb	The magnitude for the event.
Longitude	-71.147° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-33.6069° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	69.802 km	Depth of the event in kilometers.
Place	11 km NE of Melipilla, Chile	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-22 03:18:44	Time when the event occurred. UTC/GMT
Updated	2025-10-22 05:10:16	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	3.1	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	235	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	26	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.214	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.31 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	63	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	us6000riky	Id of event.
Event Code	6000riky	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000riky,	A comma-separated list of event ids that are associated to an event.

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Minor earthquake 3.9 mag, 11 km NE of Melipilla, Chile

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