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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.1 quake has struck near Houma in Tonga


Earthquake location -19.8737S, -176.3632WA light earthquake with magnitude 4.1 (ml/mb) was detected on Sunday, 181 km NW of Houma, Tonga (112 miles). Exact time and date of earthquake 23/06/24 / 2024-06-23 01:52:54 / June 23, 2024 @ 1:52 am UTC/GMT. Exact location of event, depth 245.737 km, -176.3632° West, -19.8737° South. Unique identifier: us6000n8xv. Ids that are associated to the event: us6000n8xv. The 4.1-magnitude earthquake was detected at 01:52:54 / 1:52 am (local time epicenter). The earthquake occurred at a depth of 245.737 km (153 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

In the past 24 hours, there have been two, in the last 10 days three, in the past 30 days seven and in the last 365 days fourteen earthquakes of magnitude 3.0 or greater that have been detected in the same area. Each year there are an estimated 13,000 light quakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

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: 181 km NW of Houma, Tonga.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -176.3632° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.8737° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 245.737 km Depth of the event in kilometers.
Place 181 km NW 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 2024-06-23 01:52:54 Time when the event occurred. UTC/GMT
Updated 2024-06-29 01:44:09 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 27 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 1.686 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.48 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 97 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 us6000n8xv Id of event.
Event Code 6000n8xv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us6000n8xv, A comma-separated list of event ids that are associated to an event.

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