Light earthquake, 4.5 mag has occurred near Castro in Chile

A light earthquake magnitude 4.5 (ml/mb) has struck on Sunday, 35 kilometers (22 miles) from Castro in Chile. The earthquake occurred at a depth of 35.318 km (22 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, -74.199° West, -42.4795° South, depth 35.318 km. Unique identifier: us6000q7dw. Ids that are associated to the event: us6000q7dw. Global time and date of event 20/04/25 / 2025-04-20 12:48:57 / April 20, 2025 @ 12:48 pm UTC/GMT. The temblor was detected at 12:48:57 / 12:48 pm (local time epicenter).

Nearest cities/city/towns to hypocenter/epicentrum was Puerto Quellón, Ancud, Chonchi (min 5000 pop). Event epicenter was 35 km (22 miles) from Castro (c. 29 900 pop), 75 km (46 miles) from Ancud (c. 28 000 pop), 85 km (53 miles) from Puerto Quellón (c. 21 800 pop), 38 km (24 miles) from Chonchi (c. 12 600 pop). Nearby 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 two, in the last 10 days two, in the past 30 days two and in the last 365 days seven earthquakes of magnitude 3.0 or greater that has occurred nearby. There are an estimated 13,000 light earthquakes in the world each year.

Did you feel the quake?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 35 km W of Castro, Chile. This data comes from the USGS Earthquake Notification Service.

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Parameter	Value	Description
Magnitude	4.5 mb	The magnitude for the event.
Longitude	-74.199° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-42.4795° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	35.318 km	Depth of the event in kilometers.
Place	35 km W of Castro, Chile	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-04-20 12:48:57	Time when the event occurred. UTC/GMT
Updated	2025-05-12 08:19:49	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	26	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.326	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.92 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	161	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	us6000q7dw	Id of event.
Event Code	6000q7dw	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000q7dw,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.5 mag has occurred near Castro in Chile

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