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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.4 mag was detected near Neiafu in Tonga

Posted by admin on September 29, 2020 0 Comments

Earthquake location -18.0207S, -174.5794WA light earthquake magnitude 4.4 (ml/mb) has struck on Saturday, 93 kilometers (58 miles) from Neiafu in Tonga. Exact location of earthquake, longitude -174.5794 West, latitude -18.0207 South, depth = 90.11 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact time and date of event in UTC/GMT: 05/09/20 / 2020-09-05 17:36:51 / September 5, 2020 @ 5:36 pm. Unique identifier: us7000bl1h. Ids that are associated to the event: us7000bl1h. The temblor was picked up at 17:36:51 / 5:36 pm (local time epicenter). The epicenter of the earthquake was roughly 90.11 km (56 miles) below the earth’s surface.

Nearest cities/city/villages to epicentrum/hypocenter was Neiafu (min 5000 pop). Nearby country/countries that might be effected, Tonga (c. 123 000 pop). Epicenter of the earthquake was 94 km (58 miles) from Neiafu (c. 4 300 pop).

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

Did you feel it?

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. 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: 93 km NW of Neiafu, Tonga.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude -174.5794° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -18.0207° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 90.11 km Depth of the event in kilometers.
Place 93 km NW of Neiafu, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-09-05 17:36:51 Time when the event occurred. UTC/GMT
Updated 2020-09-29 17:14:38 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 298 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 4.536 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.6 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 100 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 us7000bl1h Id of event.
Event Code 7000bl1h An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000bl1h, A comma-separated list of event ids that are associated to an event.

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