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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 189 km NW of Nuku`alofa, Tonga

Posted by admin on July 24, 2016 0 Comments

Earthquake location -19.74S, -176.2563WA light earthquake with magnitude 4.1 (ml/mb) was detected on Saturday, 189 km NW of Nuku`alofa, Tonga (117 miles). Exact location of earthquake, longitude -176.2563 West, latitude -19.74 South, depth = 321.8 km. The temblor was reported at 00:24:40 / 12:24 am (local time epicenter). Date and time of earthquake in UTC/GMT: 09/07/16 / 2016-07-09 12:24:40 / July 9, 2016 @ 12:24 pm. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Event id: us20006ewm. Ids that are associated to the earthquake: us20006ewm. The epicenter of the earthquake was roughly 321.8 km (200 miles) below the earth’s surface.

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

Did you feel anything?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity 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: 189 km NW of Nuku`alofa, Tonga.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -176.2563° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -19.74° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 321.8 km Depth of the event in kilometers.
Place 189km NW of Nuku`alofa, Tonga Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2016-07-09 12:24:40 Time when the event occurred. UTC/GMT
Updated 2016-07-24 06:59:56 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 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 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 5.745 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.76 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 155 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 us20006ewm Id of event.
Event Code 20006ewm An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us20006ewm, A comma-separated list of event ids that are associated to an event.

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