Light earthquake, 4.5 mag was detected near Copiapó in Chile

A light earthquake magnitude 4.5 (ml/mb) strikes 37 kilometers (23 miles) from Copiapó in Chile on Wednesday. The temblor was detected at 13:37:41 / 1:37 pm (local time epicenter). Exact time and date of earthquake 15/10/25 / 2025-10-15 13:37:41 / October 15, 2025 @ 1:37 pm UTC/GMT. Exact location of event, longitude -70.1129 West, latitude -27.0873 South, depth = 69.342 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The epicenter was at a depth of 69.342 km (43 miles). Unique identifier: us6000rha5. Ids that are associated to the event: us6000rha5.

Epicenter of the earthquake was 38 km (24 miles) from Copiapó (c. 129 300 pop), 80 km (50 miles) from Diego de Almagro (c. 18 100 pop). Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Diego de Almagro, Copiapó. Country/countries that might be effected, Chile (c. 16 746 000 pop).

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 one and in the last 365 days fourteen earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

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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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 37 km NE of Copiapó, Chile. This information comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	-70.1129° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-27.0873° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	69.342 km	Depth of the event in kilometers.
Place	37 km NE of Copiapó, Chile	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-15 13:37:41	Time when the event occurred. UTC/GMT
Updated	2025-10-15 13:56:28	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	312	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	45	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	0.344	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.79 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	75	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	us6000rha5	Id of event.
Event Code	6000rha5	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000rha5,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.5 mag was detected near Copiapó in Chile

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