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Light earthquake 4.3 mag, 45 km NNE of Luang Namtha, Laos

Posted by admin on December 22, 2025 0 Comments

Earthquake location 21.3014S, 101.6237WA light earthquake magnitude 4.3 (ml/mb) strikes 45 kilometers (28 miles) from Luang Namtha in Laos on Monday. Date and time of earthquake in UTC/GMT: 22/12/25 / 2025-12-22 15:45:59 / December 22, 2025 @ 3:45 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000rwi2. Event ids that are associated: us6000rwi2. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. The temblor was picked up at 15:45:59 / 3:45 pm (local time epicenter). Exact location, longitude 101.6237° East, latitude 21.3014° North, depth = 10 km.

Closest city/cities/towns to epicentrum/hypocenter was Muang Xay, Phôngsali, Louang Namtha (min 5000 pop). Country/countries that might be effected, Laos (c. 6 368 000 pop). Earthquake epicenter was 77 km (48 miles) from Muang Xay (c. 25 000 pop), 66 km (41 miles) from Phôngsali (c. 13 500 pop), 45 km (28 miles) from Louang Namtha (c. 3 200 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 one earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light earthquakes in the world.

Did you feel anything?

Did objects rattle, topple over, or fall off shelves? Leave a comment or report about activity, shaking and damage at your home, country and city. 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: 45 km NNE of Luang Namtha, Laos.

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More information

Parameter Value Description
Magnitude 4.3 mb The magnitude for the event.
Longitude 101.6237° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 21.3014° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 45 km NNE of Luang Namtha, Laos Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-12-22 15:45:59 Time when the event occurred. UTC/GMT
Updated 2025-12-22 18:28:00 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 284 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 32 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.584 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.86 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 109 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 us6000rwi2 Id of event.
Event Code 6000rwi2 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000rwi2, A comma-separated list of event ids that are associated to an event.

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