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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.5 mag has occurred near Neiafu in Tonga

Posted by admin on January 31, 2016 0 Comments

Earthquake location -17.4655S, -174.2445WA light earthquake magnitude 4.5 (ml/mb) strikes 133 km NNW of Neiafu, Tonga (83 miles) on Sunday. The earthquake occurred at a depth of 66.3 km (41 miles) below the earth’s surface. Event ids that are associated to the earthquake: us10004dzf. Id of event: us10004dzf. Exact location of earthquake, longitude -174.2445 West, latitude -17.4655 South, depth = 66.3 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.5-magnitude earthquake has occurred at 11:01:21 / 11:01 am (local time epicenter). Global date and time of event UTC/GMT: 03/01/16 / 2016-01-03 23:01:21 / January 3, 2016 @ 11:01 pm.

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

How would you describe the shaking?

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: 133 km NNW of Neiafu, Tonga.

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More information

Parameter Value Description
Magnitude 4.5 mb The magnitude for the event.
Longitude -174.2445° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -17.4655° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 66.3 km Depth of the event in kilometers.
Place 133km NNW 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 2016-01-03 23:01:21 Time when the event occurred. UTC/GMT
Updated 2016-01-31 00:27:57 Time when the event was most recently updated. UTC/GMT
Timezone offset -720 Timezone offset from UTC in minutes at the event epicenter.
Felt 0 The total number of felt reports
CDI 1 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 4.26 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.7 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 128 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 us10004dzf Id of event.
Event Code 10004dzf An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us10004dzf, A comma-separated list of event ids that are associated to an event.

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