6.2-Magnitude Earthquake Rattles Hokkaido Amid Megaquake Advisory

On Monday, 27 April 2026, at 5:23 a.m. local time (2123 GMT), a magnitude 6.2 quake struck southern Hokkaido, Japan’s northernmost island. The USGS located the epicenter about 18 km (11 mi) west of Sarabetsu at a depth of 81–83 km (50–52 mi). The Japan Meteorological Agency issued no tsunami advisory and reported no injuries or damage.

LA TimesNew York PostMagnitude 6.1 earthquake strikes in northern JapanMagnitude 6.2 quake shakes Japan’s HokkaidoMagnitude 6.2 Earthquake Jolts Northern Japan, No Damage or Tsunami WarningWION6.2 Earthquake Jolts Japan’s HokkaidoThe Straits TimesMirror - UK6.2 Magnitude Earthquake Hits Hokkaido Days After Japan Megaquake Alert

A week earlier, a magnitude 7.7 offshore quake off Iwate Prefecture prompted a JMA advisory warning of a slightly higher megaquake risk (magnitude 8.0 or greater) across 182 municipalities from Hokkaido to Chiba. The advisory was set to end on 27 April.

Magnitude 6.2 quake shakes Japan’s HokkaidoMirror - UKNew York PostMagnitude 6.1 earthquake strikes in northern JapanSouth China Morning Post6.2 Magnitude Earthquake Hits Hokkaido Days After Japan Megaquake AlertThe Straits TimesWION6.2 Earthquake Jolts Japan’s HokkaidoLA Times

• 20 April 2026 – 7.7 M offshore quake near Iwate; megaquake advisory issued.

New York Post

• 26 April 2026 – 5.0 M offshore quake south of Hokkaido, hours before the main event.

New York Post

• 27 April 2026 – 6.2 M quake in southern Hokkaido (core event); special advisory ends.

New York Post

USGS listed quake at 6.1, then revised to 6.2. JMA recorded an upper-5 in Urahoro and a lower-5 in Niikappu, shaking strong enough to hinder walking. Agency judged damage risk low, noting epicenter is 200 km east of Sapporo, a sparsely populated area. No tsunami warning was issued.

Magnitude 6.2 quake shakes Japan’s Hokkaido

JMA officials stressed quake fell outside the advisory zone and that awareness period would end as scheduled; Ayataka Ebita called it “a one-off earthquake.” The agency warned that landslide and rock-fall hazards have risen in shaken areas and that the likelihood of another large quake is higher than normal. USGS noted minimal threat to life and property.

6.2 Magnitude Earthquake Hits Hokkaido Days After Japan Megaquake Alert

Residents in Tokachi reported difficulty walking under the upper-5 intensity. Local Pacific-coast train services were temporarily suspended, but the Hokkaido Shinkansen kept running. Tomari nuclear plant inspections found no abnormalities. No casualties or infrastructure damage were confirmed.

6.2 Earthquake Jolts Japan’s Hokkaido

Sources differ on magnitude (initial 6.1, revised 6.2) and depth (81 km, 83 km, or 50 mi). The distance from Sarabetsu is reported as 18 km and 11 mi, equivalent but inconsistently presented. Aftershock details were not provided.

Magnitude 6.1 earthquake strikes in northern Japan

• "in areas that experienced strong shaking, the danger of falling rocks and landslides has increased" — Japan Meteorological Agency official

Channel News Asia - CNA

• "It is a one-off earthquake." — Ayataka Ebita, JMA spokesperson

Magnitude 6.2 quake shakes Japan’s Hokkaido

• "the likelihood of a new, huge earthquake occurring is relatively higher than during normal times" — Japan Meteorological Agency

WION

• "the special advisory — which covers 182 municipalities from Hokkaido to Chiba Prefecture — expires at 5 p.m. Monday" — Japan Meteorological Agency

Magnitude 6.2 quake shakes Japan’s Hokkaido

JMA warned that the probability of additional quakes of similar strength remains high in the coming week, and that landslide hazards could persist in shaken areas. Although the special megaquake advisory ends on 27 April, the agency indicated that overall seismic risk stays elevated until conditions normalize.

6.2 Magnitude Earthquake Hits Hokkaido Days After Japan Megaquake Alert