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Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4 mag was detected near Nemuro in Japan

Posted by admin on July 5, 2025 0 Comments

Earthquake location 42.9837S, 146.2363WA light earthquake magnitude 4 (ml/mb) has occurred on Sunday, 65 kilometers (40 miles) from Nemuro in Japan. The 4-magnitude earthquake was detected at 01:44:47 / 1:44 am (local time epicenter). Global date and time of event UTC/GMT: 22/06/25 / 2025-06-22 01:44:47 / June 22, 2025 @ 1:44 am. The earthquake was roughly at a depth of 35 km (22 miles). Exact location of earthquake, 146.2363° East, 42.9837° North, depth 35 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: us7000qamw. Unique identifier: us7000qamw.

Nearby country/countries that might be effected, Japan (c. 127 288 000 pop). The epicenter was 66 km (41 miles) from Nemuro (c. 31 200 pop). Nearest city/cities or towns, with min 5000 pop, to epicentrum/hypocenter was Nemuro.

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

How would you describe the shaking?

What was your situation during the earthquake? Leave a comment or report about damage, shaking and activity at your home, city and country. Read more about the earthquake, Location, Distances, Seismometer information, Date-Time, Parameters and details about this quake, reported near: 65 km SE of Nemuro, Japan. This information comes from the USGS Earthquake Notification Service.

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More information

Parameter Value Description
Magnitude 4 mb The magnitude for the event.
Longitude 146.2363° East Decimal degrees longitude. Negative values for western longitudes.
Latitude 42.9837° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 35 km Depth of the event in kilometers.
Place 65 km SE of Nemuro, Japan Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2025-06-22 01:44:47 Time when the event occurred. UTC/GMT
Updated 2025-07-05 22:03:30 Time when the event was most recently updated. UTC/GMT
Timezone offset 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 246 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 18 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 2.474 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.73 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 156 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 us7000qamw Id of event.
Event Code 7000qamw An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,us7000qamw, A comma-separated list of event ids that are associated to an event.

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