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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.1 mag, 281 km NNE of Ndoi Island, Fiji



Earthquake location -18.191S, -178.006WA light earthquake with magnitude 4.1 (ml/mb) was detected on Saturday, 281 km NNE of Ndoi Island, Fiji (175 miles). Exact location of earthquake, -178.006° West, -18.191° South, depth 573.28 km. Global time and date of event 22/07/17 / 2017-07-22 20:46:17 / July 22, 2017 @ 8:46 pm UTC/GMT. Unique identifier: us2000a1pv. Ids that are associated to the event: us2000a1pv. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The earthquake was roughly at a depth of 573.28 km (356 miles). The temblor was picked up at 08:46:17 / 8:46 am (local time epicenter).

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

Did you feel the quake?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home 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: 281 km NNE of Ndoi Island, Fiji.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude -178.006° West Decimal degrees longitude. Negative values for western longitudes.
Latitude -18.191° South Decimal degrees latitude. Negative values for southern latitudes.
Depth 573.28 km Depth of the event in kilometers.
Place 281km NNE of Ndoi Island, Fiji Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2017-07-22 20:46:17 Time when the event occurred. UTC/GMT
Updated 2017-08-06 05:46:52 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 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 3.777 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.55 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 75 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 us2000a1pv Id of event.
Event Code 2000a1pv An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us2000a1pv, A comma-separated list of event ids that are associated to an event.

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