M5.1 Earthquake Strikes Off Northern Japan

Noda, Japan — A magnitude 5.1 earthquake rattled the waters off the northeastern coast of Japan on Friday morning, striking about 72 kilometers east-northeast of Noda at 11:07 AM Central time.

What happened:

The quake struck at a depth of about 38 kilometers, according to the U.S. Geological Survey. It was located in the Pacific Ocean off the coast of Iwate Prefecture, in the same region that has produced some of the largest earthquakes on record. The shaking was recorded at 16:07 UTC on October 23, 2026.

Impacts:

Early reports show no tsunami threat from this quake. The USGS recorded at least one felt report, and the earthquake's green alert level indicates a low likelihood of damage or casualties. Strong shaking was possible near the epicenter, but the offshore location kept the worst of the shaking away from populated areas.

What to do:

- If you felt shaking, check your home for damage, including gas lines, cracked walls, and fallen objects.

- Expect aftershocks over the coming hours and days. If one strikes, drop, cover, and hold on until the shaking stops.

- Do not go to the coast to watch for waves after a large offshore quake. Wait for official word from local emergency officials.

- Keep an emergency kit with water, food, a flashlight, and medications within reach.

Northeastern Japan sits along one of the most active earthquake zones in the world, where the Pacific Plate dives beneath the Japanese islands. Moderate offshore quakes like this one are a regular reminder of that restless geology.

Source: U.S. Geological Survey (USGS), October 23, 2026. Reported by TNW News.