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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Houma in Tonga


Earthquake location -19.7871S, -177.6175WA light earthquake magnitude 4.1 (ml/mb) has occurred on Wednesday, 285 km WNW of Houma, Tonga (177 miles). Date and time of earthquake in UTC/GMT: 09/10/24 / 2024-10-09 03:00:41 / October 9, 2024 @ 3:00 am. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Unique identifier: us7000nnud. Ids that are associated to the event: us7000nnud. The epicenter of the earthquake was roughly 430.013 km (267 miles) below the earth’s surface. Exact location of earthquake, -177.6175° West, -19.7871° South, depth 430.013 km. The temblor was picked up at 03:00:41 / 3:00 am (local time epicenter).

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 six, in the past 30 days seventeen and in the last 365 days eighty earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Did you feel the quake?

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 data comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Distances, Parameters, Date-Time, Location and details about this quake, that has occurred near: 285 km WNW of Houma, Tonga.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -177.6175° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.7871° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 430.013 km Depth of the event in kilometers.
Place 285 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 2024-10-09 03:00:41 Time when the event occurred. UTC/GMT
Updated 2024-10-30 04:35:53 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 25 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.952 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.79 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 78 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 us7000nnud Id of event.
Event Code 7000nnud An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000nnud, A comma-separated list of event ids that are associated to an event.

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