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Light World Earthquakes Magnitude 4-4.9

Light earthquake 4.2 mag, 65 km WSW of Kamiiso, Japan

Earthquake location 41.6638S, 139.8954WA light earthquake magnitude 4.2 (ml/mb) has occurred on Saturday, 65 kilometers (40 miles) from Kamiiso in Japan. The epicenter was at a depth of 161.05 km (100 miles). The temblor was picked up at 14:50:52 / 2:50 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). Id of earthquake: us70005mk6. Event ids that are associated: us70005mk6. Exact location of event, depth 161.05 km, 139.8954° East, 41.6638° North. Exact time and date of earthquake 21/09/19 / 2019-09-21 05:50:52 / September 21, 2019 @ 5:50 am UTC/GMT.

The epicenter was 71 km (44 miles) from Hakodate (c. 275 700 pop), 65 km (40 miles) from Kamiiso (c. 38 100 pop), 70 km (43 miles) from Nanae (c. 30 000 pop). Nearby country/countries that might be effected, Japan (c. 127 288 000 pop). Nearest cities/city/villages to epicentrum/hypocenter was Hakodate, Nanae, Kamiiso (min 5000 pop).

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 three earthquakes of magnitude 3.0 or greater that have been detected nearby. There are an estimated 13,000 light quakes in the world each year.

Did you feel it?

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: 65 km WSW of Kamiiso, Japan.

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More information

Parameter Value Description
Magnitude 4.2 mb The magnitude for the event.
Longitude 139.8954° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 41.6638° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 161.05 km Depth of the event in kilometers.
Place 65km WSW of Kamiiso, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2019-09-21 05:50:52 Time when the event occurred. UTC/GMT
Updated 2019-10-11 12:58:47 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 271 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 1.241 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.63 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 97 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 us70005mk6 Id of event.
Event Code 70005mk6 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us70005mk6, A comma-separated list of event ids that are associated to an event.

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