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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag has occurred near Hachijo-jima in Japan

Earthquake location 30.9008S, 139.1172WA light earthquake with magnitude 4.1 (ml/mb) was reported 250 km SSW of Hachijo-jima, Japan (155 miles) on Tuesday. The temblor was picked up at 08:07:10 / 8:07 am (local time epicenter). The epicenter was at a depth of 387.66 km (241 miles). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Exact location of earthquake, longitude 139.1172 East, latitude 30.9008 North, depth = 387.66 km. Id of earthquake: us1000hx0y. Event ids that are associated: us1000hx0y. Global date and time of event UTC/GMT: 19/11/18 / 2018-11-19 23:07:10 / November 19, 2018 @ 11:07 pm.

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 five earthquakes of magnitude 3.0 or greater that have been detected in the same area. Every year there are an estimated 13,000 light earthquakes in the world.

Did you feel it?

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 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: 250 km SSW of Hachijo-jima, Japan.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 139.1172° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 30.9008° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 387.66 km Depth of the event in kilometers.
Place 250km SSW of Hachijo-jima, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2018-11-19 23:07:10 Time when the event occurred. UTC/GMT
Updated 2018-11-30 03:25:51 Time when the event was most recently updated. UTC/GMT
Timezone offset 540 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 2.283 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 1 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 95 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 us1000hx0y Id of event.
Event Code 1000hx0y An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000hx0y, A comma-separated list of event ids that are associated to an event.

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