JMA Monitoring System — All Clear ✓
2026-04-19 19:31:33 JST
JMA SEISMIC MONITORING NETWORK
26°N28°N30°N32°N34°N36°N38°N40°N42°N44°N46°N124°E126°E128°E130°E132°E134°E136°E138°E140°E142°E144°E146°E148°ESapporo — MonitoringAsahikawa — MonitoringKushiro — MonitoringAomori — MonitoringSendai — MonitoringNiigata — MonitoringTokyo — MonitoringYokohama — MonitoringNagoya — MonitoringKanazawa — MonitoringOsaka — MonitoringHiroshima — MonitoringMatsuyama — MonitoringFukuoka — MonitoringKagoshima — MonitoringKumamoto — MonitoringNaha — MonitoringMorioka — MonitoringTokyoOsakaSapporoFukuokaSendaiNaha
P-Wave
S-Wave
Station
City
Earthquake Data
M 9.1
Depth
24 km(Shallow)
Location
Off Pacific Coast of Tōhoku
38.322°N142.369°E2011-03-11 14:46
S-Wave Arrival
Reference: Tokyo (東京)
—
Distance: 378 km
Shindo Scale
0
Imperceptible
1
Slight
2
Weak
3
Rather Strong
4
Strong
5-
Very Strong (Lower)
5+
Very Strong (Upper)
6-
Violent (Lower)
6+
Violent (Upper)
7
Devastating
Tsunami Assessment
✓
No Tsunami Threat