Light earthquake, 4.6 mag strikes near Baculin in Philippines

Posted by admin on October 21, 2025 0 Comments

A light earthquake with magnitude 4.6 (ml/mb) was detected on Saturday, 40 kilometers (25 miles) from Baculin in Philippines. Unique identifier: us6000ri2b. Ids that are associated to the event: us6000ri2b. Exact location of event, longitude 126.9416 East, latitude 7.5409 North, depth = 10.431 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake occurred at a depth of 10.431 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 18/10/25 / 2025-10-18 18:34:59 / October 18, 2025 @ 6:34 pm. The temblor was picked up at 18:34:59 / 6:34 pm (local time epicenter).

Country/countries that might be effected, Philippines (c. 99 900 000 pop). Epicenter of the event was 95 km (59 miles) from Compostela (c. 42 600 pop), 57 km (36 miles) from Manay (c. 20 300 pop), 42 km (26 miles) from Baganga (c. 10 100 pop), 53 km (33 miles) from Taytayan (c. 6 900 pop), 61 km (38 miles) from Cateel (c. 6 600 pop), 80 km (50 miles) from Lingig (c. 6 400 pop), 69 km (43 miles) from San Ignacio (c. 6 300 pop). Nearest cities/city/villages to epicentrum/hypocenter was Compostela, Lingig, San Ignacio (min 5000 pop).

Each year there are an estimated 13,000 light quakes in the world. In the past 24 hours, there have been four, in the last 10 days fifty-six, in the past 30 days fifty-six and in the last 365 days one hundred and nine earthquakes of magnitude 3.0 or greater that have been detected nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 40 km ENE of Baculin, Philippines.

More information

Parameter	Value	Description
Magnitude	4.6 mb	The magnitude for the event.
Longitude	126.9416° East	Decimal degrees longitude. Negative values for western longitudes.
Latitude	7.5409° North	Decimal degrees latitude. Negative values for southern latitudes.
Depth	10.431 km	Depth of the event in kilometers.
Place	40 km ENE of Baculin, Philippines	Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time	2025-10-18 18:34:59	Time when the event occurred. UTC/GMT
Updated	2025-10-21 19:15:25	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	326	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	80	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	1.43	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	1.21 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	73	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	us6000ri2b	Id of event.
Event Code	6000ri2b	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000ri2b,	A comma-separated list of event ids that are associated to an event.

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Light earthquake, 4.6 mag strikes near Baculin in Philippines

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