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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.1 mag strikes near Yamada in Japan


Earthquake location 39.4824S, 142.6779WA light earthquake with magnitude 4.1 (ml/mb) was detected on Monday, 62 kilometers (39 miles) from Yamada in Japan. Global time and date of event 20/04/20 / 2020-04-20 09:42:49 / April 20, 2020 @ 9:42 am UTC/GMT. The epicenter of the earthquake was roughly 63.45 km (39 miles) below the earth’s surface. Unique identifier: us60009bl3. Ids that are associated to the event: us60009bl3. Exact location, longitude 142.6779° East, latitude 39.4824° North, depth = 63.45 km. The 4.1-magnitude earthquake has occurred at 19:42:49 / 7:42 pm (local time epicenter). A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist).

Closest city/cities or villages, with min 5000 pop, to hypocenter/epicentrum was Kamaishi, Ōtsuchi, Miyako. Country/countries that might be effected, Japan (c. 127 288 000 pop). The epicenter was 66 km (41 miles) from Miyako (c. 51 700 pop), 73 km (46 miles) from Kamaishi (c. 43 100 pop), 62 km (39 miles) from Yamada (c. 20 100 pop), 68 km (42 miles) from Ōtsuchi (c. 16 500 pop).

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

Questions or comments?

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. Read more about the earthquake, Distances, Seismometer information, Date-Time, Parameters, Location and details about this quake, that has struck: 62 km E of Yamada, Japan. This data comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4.1 mb The magnitude for the event.
Longitude 142.6779° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 39.4824° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 63.45 km Depth of the event in kilometers.
Place 62km E of Yamada, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-04-20 09:42:49 Time when the event occurred. UTC/GMT
Updated 2020-04-27 05:45:15 Time when the event was most recently updated. UTC/GMT
Timezone offset 600 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 1.798 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.45 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 136 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 us60009bl3 Id of event.
Event Code 60009bl3 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us60009bl3, A comma-separated list of event ids that are associated to an event.

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