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Quakelog

Earthquakes (Japan)

Note: Japan utilises the Japanese Intensity Scale as well as magnitude. This scale has a maximum of 7, with + and - standing for "upper" and "lower" respectively. Intensity is not equivalent to magnitude. Magnitude refers to the total energy released at the source of the earthquake, while intensity refers to the amount of shaking experienced at any given location.

Due to the frequency of earthquakes in Japan, events less than Int. 3 are contained in a smaller list below. These lists are updated manually; do not rely on it for timely information on earthquakes or tsunamis. I recommend you use NERV.

Larger Earthquakes:

Date	Time	Location	Intensity	Magnitude	Depth	Tsunami Information	Notes
15/05/2026	21:22	off Miyagi (prefecture)	5-	6.4	50km (shallow)	No tsunami	This earthquake was detected at Intensity 1 as far as Western Shizuoka (SW) and Shibetsu (NE).
15/05/2026	13:09	Aomori Southern Tsugaru	3	3.4	10km (shallow)	No tsunami	This earthquake was detected at only one other location at Intensity 1 (Aomori Northern Tsugaru (N)). It appears to be an aftershock from an earthquake at the same location from the previous day.
15/05/2026	01:33	Iwo Jima	3	6.0	10km (shallow)	No tsunami	This earthquake was felt at Ogasawara at Intensity 3.
14/04/2026	18:01	Northern Inland Iwate	4	5.0	10km (shallow)	No tsunami	This earthquake was an aftershock following the previous earthquake 1 minute before. It was detected at Intensity 1 as far as Central Miyagi (S) and Intensity 2 as far as Eastern Oshima (N).
14/05/2026	18:00	Northern Inland Iwate	4	3.4	10km (shallow)	No tsunami	This earthquake was also felt at Intensity 3 at Northern Coastal Iwate (E) and Aomori Sanpachi-Kamikita (N). It was followed by an aftershock 1 minute later, listed above.
14/05/2026	03:32	Aomori Southern Tsugaru	3	3.7	10km (shallow)	No tsunami	This earthquake was felt at Intensity 1 at three other locations: Northern Coastal Akita (SW), Northern Inland Akita (S), and Aomori Northern Tsugaru (N).

Smaller Earthquakes:

16/05/2026: 3 smaller earthquakes were detected at Northern Osaka (04:55), Gifu Hida (08:27), and the Kii Channel (13:29)
15/05/2026: 3 smaller earthquakes were detected at off Ibaraki (09:23), Eastern Shimane (20:23), and Chichijima (21:20).
14/05/2026: 8 smaller earthquakes were detected at off Miyagi (04:02), Northern Inland Iwate (06:11; 06:13), Iriomotejima (06:46), Kumamoto Region (11:55; 23:44), and Aomori Southern Tsugaru (16:15).
13/05/2026: 4 smaller earthquakes were detected at Northern Gunma (21:17), and Iriomotejima (22:12; 22:19; 22:32).

Earthquakes (Australia)

Date	Time	Location	Magnitude	Depth	Notes
15/05/2026	03:05	SW of Orange, NSW	2.8	1km (shallow)	None.
14/05/2026	18:41	NW of Gnowangerup, WA	2.2	1km (shallow)	None.

Classifying Earthquake Depth

Shallow earthquakes are considered to have occurred when the depth is between 0-70km, intermediate earthquakes are between 70-300km, and deep earthquakes are between 300-700km.