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Light earthquake 4.5 mag, 133 km WNW of Hihifo, Tonga

Posted by admin on May 4, 2025 0 Comments

Earthquake location -15.4337S, -174.9147WA light earthquake with magnitude 4.5 (ml/mb) was detected on Sunday, 133 km WNW of Hihifo, Tonga (83 miles). Exact location of event, depth 233.848 km, -174.9147° West, -15.4337° South. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event ids that are associated to the earthquake: us7000px4i. Id of event: us7000px4i. The 4.5-magnitude earthquake was detected at 18:53:13 / 6:53 pm (local time epicenter). The epicenter of the earthquake was roughly 233.848 km (145 miles) below the earth’s surface. Exact time and date of earthquake 04/05/25 / 2025-05-04 18:53:13 / May 4, 2025 @ 6:53 pm UTC/GMT.

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

Questions or comments?

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: 133 km WNW of Hihifo, Tonga.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -174.9147° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -15.4337° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 233.848 km Depth of the event in kilometers.
Place 133 km WNW of Hihifo, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-05-04 18:53:13 Time when the event occurred. UTC/GMT
Updated 2025-05-04 19:11:33 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 312 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 41 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 3.389 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.62 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 66 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 us7000px4i Id of event.
Event Code 7000px4i An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000px4i, A comma-separated list of event ids that are associated to an event.

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