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Light World Earthquakes Magnitude 4-4.9

Light earthquake: M4.4 quake has struck near Hachijo-jima in Japan

Posted by admin on September 29, 2018 0 Comments

Earthquake location 33.622S, 140.1325WA light earthquake with magnitude 4.4 (ml/mb) was reported 67 km NNE of Hachijo-jima, Japan (42 miles) on Saturday. The epicenter of the earthquake was roughly 115.2 km (72 miles) below the earth’s surface. Date and time of earthquake in UTC/GMT: 22/09/18 / 2018-09-22 12:28:47 / September 22, 2018 @ 12:28 pm. Exact location of event, longitude 140.1325 East, latitude 33.622 North, depth = 115.2 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). All ids that are associated to the event: us1000h3qb. Unique identifier: us1000h3qb. The 4.4-magnitude earthquake was detected at 21:28:47 / 9:28 pm (local time epicenter).

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

Did you feel anything?

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 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: 67 km NNE of Hachijo-jima, Japan.

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More information

Parameter Value Description
Magnitude 4.4 mb The magnitude for the event.
Longitude 140.1325° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 33.622° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 115.2 km Depth of the event in kilometers.
Place 67km NNE 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 2018-09-22 12:28:47 Time when the event occurred. UTC/GMT
Updated 2018-09-29 13:06:59 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 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 0.571 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.82 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 124 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 us1000h3qb Id of event.
Event Code 1000h3qb An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us1000h3qb, A comma-separated list of event ids that are associated to an event.

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