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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.6 mag was detected near `Ohonua in Tonga

Posted by admin on February 18, 2020 0 Comments

Earthquake location -23.4038S, -174.2914WA light earthquake with magnitude 4.6 (ml/mb) was reported 239 km SSE of `Ohonua, Tonga (149 miles) on Tuesday. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location, longitude -174.2914° West, latitude -23.4038° South, depth = 10 km. The epicenter of the earthquake was roughly 10 km (6 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 11/02/20 / 2020-02-11 16:06:05 / February 11, 2020 @ 4:06 pm. Unique identifier: us70007sfq. Ids that are associated to the event: us70007sfq. The temblor was detected at 04:06:05 / 4:06 am (local time epicenter).

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

How would you describe the shaking?

How did you react? Was there any damage to buildings? Leave a comment or report about shaking, activity 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: 239 km SSE of `Ohonua, Tonga.

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More information

Parameter Value Description
Magnitude 4.6 mb The magnitude for the event.
Longitude -174.2914° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -23.4038° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 10 km Depth of the event in kilometers.
Place 239km SSE of `Ohonua, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-02-11 16:06:05 Time when the event occurred. UTC/GMT
Updated 2020-02-18 20:27:10 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 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 326 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 5.925 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 102 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 us70007sfq Id of event.
Event Code 70007sfq An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70007sfq, A comma-separated list of event ids that are associated to an event.

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