Light mag. 4.0 earthquake - North Pacific Ocean, 59 km east of Namie, Futaba-gun, Fukushima, Japan, on Apr 18, 2021 10:00:58.59 -

This quake was likely an aftershock of the 7.0 quake 16 km northeast of Ishinomaki, Miyagi, Japan, 20 Mar 2021 6:09 pm (GMT +9), which had occurred 4 weeks earlier.
Light mag. 4.0 earthquake - North Pacific Ocean, 59 km east of Namie, Futaba-gun, Fukushima, Japan, on Apr 18, 2021 10:00:58.59

Light magnitude 4.0 earthquake at 44 km depth

18 Apr 01:07 UTC: First to report: NIED after 6 minutes.
Date & time: 18 Apr 2021 01:00:58 UTC -
Local time at epicenter: Apr 18, 2021 10:00:58.59
Magnitude: 4
Depth: 44.2 km
Epicenter latitude / longitude: 37.608°N / 141.654°E (North Pacific Ocean, Japan)
Nearest volcano: Adatara (121 km / 75 mi)
Nearby towns and cities:
59 km (37 mi) ENE of Namie (Futaba-gun) (pop: 21,900) --> See nearby quakes!
85 km (53 mi) ESE of Watari (pop: 36,300) --> See nearby quakes!
88 km (54 mi) ESE of Kakuda (pop: 33,200) --> See nearby quakes!
89 km (55 mi) SE of Iwanuma (pop: 42,400) --> See nearby quakes!
92 km (57 mi) NE of Iwaki (pop: 357,300) --> See nearby quakes!
95 km (59 mi) SSE of Ishinomaki (pop: 117,200) --> See nearby quakes!
96 km (60 mi) SE of Shiogama (pop: 59,500) --> See nearby quakes!
100 km (62 mi) SE of Rifu (pop: 35,000) --> See nearby quakes!
260 km (161 mi) NE of Saitama (pop: 1,193,400) --> See nearby quakes!
276 km (172 mi) NE of Tokyo (pop: 8,336,600) --> See nearby quakes!
Weather at epicenter at time of quake:
Overcast Clouds 12.4°C (54 F), humidity: 68%, wind: 9 m/s (17 kts) from WNW
Primary data source: NIED (National Research Institute for Earth Science and Disaster Resilience)
Estimated released energy: 6.3 x 1010 joules (17.5 megawatt hours, equivalent to 15.1 tons of TNT) More info
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.

User reports for this quake (2)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
230.5 km SW of epicenter [Map] / Weak shaking (MMI III) / single lateral shake / 2-5 s (reported through our app)
261.6 km SSW of epicenter [Map] / Light shaking (MMI IV) / 15-20 s (reported through our app)
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