Light earthquake 4 mag, 276 km WNW of Houma, Tonga

A light earthquake magnitude 4 (ml/mb) has struck on Saturday, 276 km WNW of Houma, Tonga (171 miles). The earthquake occurred at a depth of 365.22 km (227 miles) below the earth’s surface. Exact location of event, longitude -177.6193 West, latitude -19.9523 South, depth = 365.22 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us6000mu0x. Event ids that are associated: us6000mu0x. Exact time and date of earthquake 20/04/24 / 2024-04-20 16:55:30 / April 20, 2024 @ 4:55 pm UTC/GMT. The temblor was reported at 16:55:30 / 4:55 pm (local time epicenter).

In the past 24 hours, there have been nine, in the last 10 days nine, in the past 30 days nine and in the last 365 days nine earthquakes of magnitude 3.0 or greater that was reported nearby. Every year there are an estimated 13,000 light earthquakes in the world. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

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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, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 276 km WNW of Houma, Tonga. This information comes from the USGS Earthquake Notification Service.

Houma Tonga

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Parameter	Value	Description
Magnitude	4 mb	The magnitude for the event.
Longitude	-177.6193° West	Decimal degrees longitude. Negative values for western longitudes.
Latitude	-19.9523° South	Decimal degrees latitude. Negative values for southern latitudes.
Depth	365.22 km	Depth of the event in kilometers.
Place	276 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	2024-04-20 16:55:30	Time when the event occurred. UTC/GMT
Updated	2024-05-15 21:45:41	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	246	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	25	The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance	2.567	Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square	0.61 sec	The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap	83	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	us6000mu0x	Id of event.
Event Code	6000mu0x	An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS	,us6000mu0x,	A comma-separated list of event ids that are associated to an event.

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Light earthquake 4 mag, 276 km WNW of Houma, Tonga

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