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Updated 2025-12-22 16:00:43 UTC

M 5.1 — near the east coast of Honshu, Japan

Magnitude 5.1, depth 41.6 km, 2011-03-24 03:58:09 UTC.

MagnitudeM 5.1
Depth41.6 km
Felt reports—
Statusreviewed
TsunamiNo

Japan →

Quake Pulse Activity Index

Activity trend

A high index means recent activity is high relative to the selected historical baseline. It does not mean that a larger earthquake is about to occur.

Quake Pulse Activity Index51/100Normal
Current 30 days42
Historical monthly median41.5
Historical percentileP51
M5+ in 30 days9
M6+ in 30 days1
Activity trendaround the historical range (+1%)
Baseline months: 60Last calculation: 2026-09-03 06:17:39How the index works →
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What to know

A short factual reading of this event from the available observations.

  • Magnitude M 5.1 at 41.6 km depth.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
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Within the Quake Pulse database

Long-term comparisons are more robust at higher magnitudes because small-earthquake detection capability has changed over time.

Magnitude rank in database#28,237
Magnitude rank in country#2,202
M4.5+ within 250 km, ±15 days1,561
Sequence context1168 events →
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Impact and context

Descriptive indicators available for this event and its surroundings.

16/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance400
Depth contextShallow
Nearby major cityTokyo427 km · 14,000,000

Nearby major city

Tokyo427 km · 14,000,000

Displayed population is the indexed city population, not an estimate of people exposed.

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These indicators describe data available after detection. They are neither a forecast nor a direct estimate of damage or individual risk.

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Around this epicenter

Nearby events observed around this epicenter. Spatial proximity does not necessarily mean they belong to the same sequence.

50 km100 km250 km
M 5.1 · near the east coast of Honshu, Japan · 50 kmInteractive 3D view of earthquakes within 50 km of M 5.1 · near the east coast of Honshu, Japan.M 5.1 · near the east coast of Honshu, JapanM 4.5 · 114 km ESE of Kamaishi, Japan · 27.6 kmM 4.8 · 70 km SE of Kamaishi, Japan · 41.9 kmM 4.7 · 139 km SE of ?funato, Japan · 42.2 kmM 4.6 · 78 km ESE of Kamaishi, Japan · 37.2 kmM 4.7 · 62 km ESE of ?funato, Japan · 47.7 kmM 4.6 · 92 km E of Ishinomaki, Japan · 45.9 kmM 4.6 · 97 km SE of ?funato, Japan · 23.5 kmM 4.5 · 134 km SE of ?funato, Japan · 37.8 kmM 4.6 · 116 km SE of ?funato, Japan · 30.0 kmM 4.7 · 121 km ESE of Kamaishi, Japan · 24.9 kmM 5.2 · 103 km ESE of Kamaishi, Japan · 22.5 kmM 4.5 · 68 km ESE of ?funato, Japan · 39.8 kmM 4.8 · 153 km ESE of Kamaishi, Japan · 49.2 kmM 4.7 · 94 km E of Ishinomaki, Japan · 44.0 kmM 4.8 · 143 km ESE of Kamaishi, Japan · 44.2 kmM 4.8 · 62 km SE of ?funato, Japan · 46.9 kmM 4.8 · 78 km ESE of Kamaishi, Japan · 45.5 kmM 4.7 · 130 km ESE of ?funato, Japan · 23.3 kmM 4.6 · 72 km ESE of Kamaishi, Japan · 47.6 kmM 4.9 · 154 km ESE of ?funato, Japan · 47.2 kmM 4.8 · 69 km ESE of Kamaishi, Japan · 45.8 kmM 4.7 · 78 km SE of ?funato, Japan · 48.9 kmM 4.5 · 129 km ESE of Ishinomaki, Japan · 47.1 kmM 4.7 · 141 km ESE of ?funato, Japan · 34.1 kmM 4.6 · 82 km SE of Kamaishi, Japan · 29.6 kmM 4.8 · 132 km SE of ?funato, Japan · 33.5 kmM 4.7 · 68 km ESE of ?funato, Japan · 39.5 kmM 4.9 · 148 km SE of Kamaishi, Japan · 41.1 kmM 4.9 · 71 km ESE of Kamaishi, Japan · 45.2 kmM 4.7 · 74 km ESE of Kamaishi, Japan · 42.0 kmM 4.8 · 141 km SE of Kamaishi, Japan · 35.1 kmM 5.1 · 128 km SE of ?funato, Japan · 36.3 kmM 4.7 · 97 km E of Ishinomaki, Japan · 49.8 kmM 4.7 · 144 km SE of ?funato, Japan · 47.7 kmM 5.1 · 146 km SE of ?funato, Japan · 48.2 kmM 4.5 · 121 km ESE of Kamaishi, Japan · 40.1 kmM 4.5 · 65 km ESE of Kamaishi, Japan · 49.8 kmM 4.7 · 78 km ESE of ?funato, Japan · 29.2 kmM 4.7 · 78 km ESE of Kamaishi, Japan · 40.4 kmM 4.7 · 120 km SE of ?funato, Japan · 31.3 kmM 5.6 · 78 km ESE of ?funato, Japan · 30.6 kmM 4.9 · 73 km ESE of Ōfunato, Japan · 35.1 kmM 5.2 · 93 km ESE of Kamaishi, Japan · 27.9 kmM 4.6 · 111 km SE of ?funato, Japan · 14.5 kmM 4.9 · 125 km ESE of Ishinomaki, Japan · 46.7 kmM 4.8 · 85 km ESE of ?funato, Japan · 24.3 kmM 4.7 · 108 km ESE of Ishinomaki, Japan · 49.4 kmM 4.5 · 85 km SE of Kamaishi, Japan · 27.6 kmM 4.9 · 126 km ESE of Kamaishi, Japan · 25.0 kmM 5.8 · 101 km SE of Kamaishi, Japan · 16.0 kmM 5.1 · 73 km SE of Kamaishi, Japan · 36.8 kmM 4.7 · 102 km ESE of Kamaishi, Japan · 49.5 kmM 4.6 · 114 km SE of ?funato, Japan · 29.1 kmM 4.9 · 145 km SE of Kamaishi, Japan · 39.4 kmM 4.5 · 99 km ESE of Kamaishi, Japan · 44.6 kmM 6.1 · 72 km ESE of Kamaishi, Japan · 46.8 kmM 4.7 · off the east coast of Honshu, Japan · 35.0 kmM 4.7 · 151 km ESE of Kamaishi, Japan · 49.8 kmM 4.8 · 137 km SE of ?funato, Japan · 31.1 kmM 4.7 · 125 km SE of ?funato, Japan · 25.3 kmM 4.5 · 99 km ESE of Kamaishi, Japan · 21.2 kmM 5.0 · 116 km SE of Kamaishi, Japan · 18.5 kmM 4.9 · 89 km SE of Kamaishi, Japan · 24.3 kmM 5.3 · 144 km ESE of ?funato, Japan · 37.8 kmM 4.7 · 146 km SE of ?funato, Japan · 48.8 kmM 5.0 · 156 km SE of Kamaishi, Japan · 49.4 kmM 5.0 · 143 km ESE of ?funato, Japan · 36.1 kmM 4.9 · near the east coast of Honshu, Japan · 26.4 kmM 4.9 · 58 km ESE of ?funato, Japan · 49.8 kmM 4.9 · 67 km ESE of ?funato, Japan · 41.7 kmM 6.2 · 128 km SE of ?funato, Japan · 35.4 kmM 4.9 · 116 km ESE of Kamaishi, Japan · 28.1 kmM 4.7 · 137 km ESE of ?funato, Japan · 29.2 kmM 5.1 · 126 km ESE of ?funato, Japan · 19.8 kmM 5.3 · 131 km SE of Kamaishi, Japan · 26.9 kmM 4.9 · 151 km ESE of Kamaishi, Japan · 47.4 kmM 5.6 · 142 km ESE of Kamaishi, Japan · 39.8 kmM 4.8 · 64 km SE of Kamaishi, Japan · 46.2 kmM 4.9 · 143 km ESE of ?funato, Japan · 36.4 kmM 5.4 · 146 km ESE of ?funato, Japan · 38.7 kmM 6.5 · 128 km SE of ?funato, Japan · 34.7 kmM 6.0 · 114 km SE of ?funato, Japan · 32.5 kmM 4.9 · 126 km SE of ?funato, Japan · 38.6 kmM 5.9 · 140 km ESE of ?funato, Japan · 32.9 kmM 6.0 · 99 km E of Ishinomaki, Japan · 46.3 kmM 4.6 · 135 km ESE of ?funato, Japan · 27.4 kmM 4.8 · 139 km SE of Kamaishi, Japan · 34.3 kmM 4.6 · 150 km ESE of ?funato, Japan · 42.0 kmM 4.7 · 147 km ESE of ?funato, Japan · 40.6 kmM 5.2 · 129 km ESE of ?funato, Japan · 21.0 kmM 4.7 · 125 km ESE of Kamaishi, Japan · 28.5 kmM 4.8 · 126 km SE of Kamaishi, Japan · 21.3 kmM 5.2 · 128 km SE of Kamaishi, Japan · 23.3 kmM 5.1 · 102 km ESE of Kamaishi, Japan · 22.4 kmM 5.0 · 146 km SE of ?funato, Japan · 42.8 kmM 5.0 · 131 km SE of Kamaishi, Japan · 27.7 kmM 4.6 · 147 km SE of Kamaishi, Japan · 40.9 kmM 5.3 · 108 km SE of ?funato, Japan · 18.5 kmM 5.6 · 118 km SE of Kamaishi, Japan · 16.8 kmM 4.8 · 131 km ESE of ?funato, Japan · 23.6 km
M 5.1 · near the east coast of Honshu, Japan50 km100 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

This event belongs to a sequence detected by Quake Pulse.

Open sequence →

Nearby events · 50 km

M 4.5114 km ESE of Kamaishi, Japan27.6 km · 2011-04-21 07:01:13 UTCM 4.870 km SE of Kamaishi, Japan41.9 km · 2011-04-14 23:31:50 UTCM 4.7139 km SE of ?funato, Japan42.2 km · 2011-04-09 16:57:27 UTCM 4.678 km ESE of Kamaishi, Japan37.2 km · 2011-04-09 06:29:42 UTCM 4.762 km ESE of ?funato, Japan47.7 km · 2011-04-05 04:25:29 UTCM 4.692 km E of Ishinomaki, Japan45.9 km · 2011-04-01 13:30:24 UTCM 4.697 km SE of ?funato, Japan23.5 km · 2011-03-31 14:42:36 UTCM 4.5134 km SE of ?funato, Japan37.8 km · 2011-03-29 14:22:31 UTC
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USGS data evolution

Earthquake parameters can be revised after first publication. This timeline shows versions retained by Quake Pulse.

Revisions1
Magnitude change+0.0M 5.1 → M 5.1
Depth change+0.0 km
Last update420787 min
2025-12-22 16:00:43 UTC2025-12-22 16:00:43 UTC

Explore related context

Related or nearby earthquakes

M 4.8 · 65 km ESE of Ōfunato, Japan43 km · 2026-03-06 20:31:51 UTCM 4.9 · 51 km ESE of Ōfunato, Japan57 km · 2026-07-03 01:44:52 UTCM 4.6 · 68 km ESE of Onagawa Chō, Japan63 km · 2026-08-04 14:00:26 UTCM 6.7 · 41 km ESE of Ōfunato, Japan67 km · 2026-05-15 11:22:01 UTC

Geographic context

CountryJapan →Seismic sequenceM 5.1 →

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Putting this earthquake in context

An earthquake record can change after the first automatic publication as additional stations contribute data and analysts refine the solution.

Interpret the numbers

Magnitude, depth, felt reports and status describe different parts of the event. None of them alone predicts the consequences for a specific city.

Important limits

If the earthquake creates a safety concern, follow local authorities and official warning channels rather than relying on a public data website.

Read the methodology →

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