Reviewed by USGSJapan region26y ago
M3.8 earthquake in Volcano Islands, Japan region
Thursday, April 27, 2000, 06:59:52 UTC · 23.865°N, 143.556°E
A magnitude 3.8 earthquake struck in Volcano Islands, Japan region on Thursday, April 27, 2000, 06:59:52 UTC, at a depth of 33.0 km (shallow).
- Magnitude
- 3.8
- Minor · mb
- Depth
- 33 km
- Shallow
- Felt reports
- 0
- Did You Feel It?
- Est. shaking
- —
- No ShakeMap
- PAGER alert
- None
- Not issued
- Tsunami
- No flag
- USGS feed
Outlined circle: this earthquake
In context
How big was it, and why here?
Energy released
8 tons of TNT
That is about 1/1,992 of the Hiroshima bomb. A magnitude 5.0 releases about 63 times more energy.
Tectonic setting
31 km
from the nearest mapped plate boundary, between the Mariana and Pacific plates. Earthquakes cluster along boundaries like this one, where plates collide, pull apart or slide past each other.
Depth: shallow
33 km
Shallow earthquakes (under 70 km) produce the strongest surface shaking for their size, so they are the ones most likely to cause damage near the epicenter.
Did You Feel It?
Where it was felt
No “Did You Feel It?” reports have been published for this event yet. If you felt it, you can add your report on the USGS website.
I felt it — report to USGS ↗USGS PAGER estimate
Who was exposed to shaking
USGS publishes PAGER impact estimates for significant earthquakes, usually within an hour. No PAGER estimate is available for this event.
After the main event
Aftershocks within 50 km
USGS has not published any M2.5+ earthquake within 50 km in the 30 days after this event.
Regional history
Past M5+ earthquakes within 300 km
USGS lists 234 M5.0+ earthquakes within 300 km before this one (catalog from 1900; older records are less complete). The strongest:
- 7.9Volcano Islands, Japan regionNovember 24, 1914 · 205 km SW of this epicenter
- 7.6Volcano Islands, Japan regionMarch 28, 2000 · 171 km S of this epicenter
- 7.5Volcano Islands, Japan regionFebruary 24, 1934 · 96 km SE of this epicenter
- 7.2Mariana Islands regionJuly 11, 1905 · 257 km S of this epicenter
- 7.2Volcano Islands, Japan regionAugust 27, 1954 · 56 km W of this epicenter
- 7.2Volcano Islands, Japan regionFebruary 26, 1945 · 204 km N of this epicenter
- 7.2Volcano Islands, Japan regionMay 30, 1955 · 127 km NW of this epicenter
- 7.2Volcano Islands, Japan regionFebruary 1, 1954 · 23 km NW of this epicenter
History · NOAA
Deadliest earthquakes in this area
NOAA’s significant-earthquake database lists 2 damaging, deadly or tsunami-generating earthquakes within 300 km of this epicenter since 1700. The most severe:
- 1914M8.1
Volcano Islands
24 Nov 1914 · 215 km away
- 2000M7.6
Volcano Islands
28 Mar 2000 · 171 km away
NOAA NCEI Global Significant Earthquake Database. Historical figures are estimates; older records are incomplete.