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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 280 km WNW of Houma, Tonga

Posted by admin on May 30, 2025 0 Comments

Earthquake location -19.9383S, -177.648WA light earthquake with magnitude 4.1 (ml/mb) was detected on Thursday, 280 km WNW of Houma, Tonga (174 miles). The epicenter of the earthquake was roughly 566.354 km (352 miles) below the earth’s surface. Exact time and date of event in UTC/GMT: 15/05/25 / 2025-05-15 03:18:26 / May 15, 2025 @ 3:18 am. The temblor was detected at 03:18:26 / 3:18 am (local time epicenter). Exact location of earthquake, longitude -177.648 West, latitude -19.9383 South, depth = 566.354 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us6000qgnw. Unique identifier: us6000qgnw.

There are an estimated 13,000 light quakes in the world each year. In the past 24 hours, there have been five, in the last 10 days eight, in the past 30 days thirteen and in the last 365 days one hundred and thirty-two earthquakes of magnitude 3.0 or greater that has struck near. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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. 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: 280 km WNW of Houma, Tonga.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -177.648° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.9383° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 566.354 km Depth of the event in kilometers.
Place 280 km WNW of Houma, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-05-15 03:18:26 Time when the event occurred. UTC/GMT
Updated 2025-05-30 02:13:55 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 259 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 21 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 4.458 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 126 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 us6000qgnw Id of event.
Event Code 6000qgnw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000qgnw, A comma-separated list of event ids that are associated to an event.

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