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Updated 2014-11-07 01:44:01 UTC

M 5.1 — 58 km ENE of Hasaki, Japan

Magnitude 5.1, depth 37.3 km, 2011-03-12 07:54:09 UTC.

MagnitudeM 5.1
Depth37.3 km
Felt reports—
Statusreviewed
TsunamiNo

Japan → · Hasaki →

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 37.3 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 days956
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 cityTokyo161 km · 14,000,000

Nearby major city

Tokyo161 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 · 58 km ENE of Hasaki, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 5.1 · 58 km ENE of Hasaki, Japan.M 5.1 · 58 km ENE of Hasaki, JapanM 4.5 · 43 km ESE of Hitachi, Japan · 66.2 kmM 4.7 · 100 km ESE of Iwaki, Japan · 87.6 kmM 4.5 · 52 km E of ?arai, Japan · 47.2 kmM 4.8 · 61 km E of Hasaki, Japan · 17.1 kmM 4.5 · 100 km ENE of Hasaki, Japan · 46.3 kmM 4.5 · 37 km ESE of Kitaibaraki, Japan · 88.5 kmM 4.6 · 29 km SSE of Hasaki, Japan · 63.9 kmM 4.6 · 75 km ESE of Kitaibaraki, Japan · 74.2 kmM 4.5 · 37 km ESE of Takahagi, Japan · 79.9 kmM 4.8 · 11 km SSE of Y?kaichiba, Japan · 82.7 kmM 4.5 · near the east coast of Honshu, Japan · 51.1 kmM 4.5 · 113 km ESE of Takahagi, Japan · 67.5 kmM 4.7 · 30 km ESE of ?arai, Japan · 59.7 kmM 4.7 · 18 km SSE of ?arai, Japan · 74.3 kmM 4.6 · 28 km E of ?arai, Japan · 64.9 kmM 4.5 · 52 km NE of Hasaki, Japan · 17.3 kmM 4.5 · 55 km SSE of Hasaki, Japan · 75.3 kmM 4.6 · near the east coast of Honshu, Japan · 25.8 kmM 4.6 · 93 km NE of Hasaki, Japan · 41.0 kmM 4.7 · 41 km ESE of Hitachi, Japan · 65.9 kmM 5.3 · 81 km NE of Hasaki, Japan · 36.9 kmM 4.6 · 4 km E of Asahi, Japan · 70.9 kmM 5.1 · 91 km ESE of Iwaki, Japan · 97.0 kmM 4.6 · 154 km ENE of Hasaki, Japan · 95.4 kmM 4.6 · 143 km ENE of Hasaki, Japan · 84.1 kmM 4.5 · 28 km NE of Hasaki, Japan · 35.2 kmM 4.8 · 46 km SE of Hasaki, Japan · 64.9 kmM 4.7 · 19 km E of Hasaki, Japan · 40.5 kmM 4.6 · 34 km E of Hasaki, Japan · 25.8 kmM 5.1 · 40 km SSE of Hasaki, Japan · 69.0 kmM 4.5 · 34 km NE of Hasaki, Japan · 33.1 kmM 4.7 · 140 km ENE of Hasaki, Japan · 81.5 kmM 5.7 · 154 km ENE of Hasaki, Japan · 95.0 kmM 4.6 · 63 km ENE of Hasaki, Japan · 13.7 kmM 4.6 · 100 km ESE of Iwaki, Japan · 95.3 kmM 4.6 · 13 km SE of Hitachi, Japan · 91.7 kmM 4.5 · 106 km ENE of Hasaki, Japan · 51.4 kmM 5.2 · 99 km ESE of Takahagi, Japan · 56.2 kmM 4.6 · 112 km ENE of Hasaki, Japan · 56.0 kmM 4.8 · 21 km SE of Takahagi, Japan · 90.9 kmM 4.9 · 56 km E of ?hara, Japan · 83.6 kmM 4.6 · off the east coast of Honshu, Japan · 57.7 kmM 4.7 · 76 km ESE of Iwaki, Japan · 92.9 kmM 4.5 · 157 km ENE of Hasaki, Japan · 98.8 kmM 4.7 · 13 km SE of Hasaki, Japan · 52.0 kmM 4.7 · 40 km E of ?arai, Japan · 62.8 kmM 4.8 · 76 km E of ?arai, Japan · 38.5 kmM 4.6 · 21 km E of Funaishikawa, Japan · 83.7 kmM 4.8 · 42 km E of ?arai, Japan · 62.1 kmM 4.6 · 131 km ENE of Hasaki, Japan · 73.3 kmM 4.7 · 42 km ESE of Kitaibaraki, Japan · 83.7 kmM 4.5 · 26 km ESE of ?arai, Japan · 64.4 kmM 5.0 · 90 km ENE of Hasaki, Japan · 34.5 kmM 4.7 · 95 km ESE of Kitaibaraki, Japan · 81.6 kmM 5.1 · 35 km NE of Hasaki, Japan · 27.1 kmM 4.9 · near the east coast of Honshu, Japan · 67.4 kmM 4.5 · 66 km SSE of Hasaki, Japan · 81.7 kmM 4.5 · 92 km E of Hasaki, Japan · 41.6 kmM 4.7 · 53 km E of ?hara, Japan · 93.6 kmM 5.1 · 65 km ESE of Kitaibaraki, Japan · 84.5 kmM 4.6 · 61 km ESE of ?hara, Japan · 94.4 kmM 4.6 · 42 km ESE of ?arai, Japan · 49.9 kmM 4.7 · 52 km E of ?hara, Japan · 94.1 kmM 5.0 · 49 km E of ?hara, Japan · 87.6 kmM 4.7 · 123 km E of Hasaki, Japan · 67.2 kmM 4.5 · 48 km E of ?hara, Japan · 93.6 kmM 4.9 · 79 km NE of Hasaki, Japan · 35.7 kmM 4.9 · 83 km E of Hasaki, Japan · 43.0 kmM 4.6 · 50 km SSE of Hasaki, Japan · 80.4 kmM 4.5 · 62 km SSE of Hasaki, Japan · 83.9 kmM 4.5 · 55 km SSE of Hasaki, Japan · 80.4 kmM 4.9 · 42 km E of ?hara, Japan · 85.9 kmM 4.6 · 54 km SSE of Hasaki, Japan · 80.7 kmM 5.3 · 72 km E of Hasaki, Japan · 30.1 kmM 5.1 · 69 km E of Hasaki, Japan · 22.1 kmM 4.7 · 83 km E of Hasaki, Japan · 35.0 kmM 5.6 · 66 km E of Hasaki, Japan · 16.8 kmM 5.9 · 65 km E of Hasaki, Japan · 15.1 kmM 5.7 · 73 km E of ?arai, Japan · 42.9 kmM 4.5 · 83 km ENE of Hasaki, Japan · 28.8 kmM 4.5 · 58 km E of ?hara, Japan · 84.9 kmM 4.6 · 91 km E of Hasaki, Japan · 48.3 kmM 4.7 · 56 km ENE of Hasaki, Japan · 12.6 kmM 4.8 · 99 km ESE of Hasaki, Japan · 67.1 kmM 5.1 · 68 km E of Hasaki, Japan · 27.7 kmM 4.7 · 62 km SSE of Hasaki, Japan · 79.4 kmM 5.7 · 55 km E of ?hara, Japan · 88.0 kmM 4.7 · 35 km E of ?arai, Japan · 65.7 kmM 5.0 · 94 km ENE of Hasaki, Japan · 35.9 kmM 4.7 · 38 km ESE of Takahagi, Japan · 82.4 kmM 4.7 · 32 km ESE of Takahagi, Japan · 82.4 kmM 4.5 · 50 km SE of Hasaki, Japan · 62.2 kmM 4.6 · 46 km ENE of Kashima-shi, Japan · 41.9 kmM 4.6 · 34 km ENE of ?arai, Japan · 68.3 kmM 4.8 · 144 km E of Hasaki, Japan · 85.7 kmM 4.9 · 79 km ESE of Takahagi, Japan · 61.3 kmM 5.0 · 121 km ENE of Hasaki, Japan · 63.7 kmM 4.9 · 76 km NE of Hasaki, Japan · 31.8 kmM 4.6 · 86 km E of ?arai, Japan · 40.9 kmM 4.8 · 109 km ENE of Hasaki, Japan · 52.8 km
M 5.1 · 58 km ENE of Hasaki, Japan100 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 · 100 km

M 4.543 km ESE of Hitachi, Japan66.2 km · 2011-04-10 16:34:02 UTCM 4.7100 km ESE of Iwaki, Japan87.6 km · 2011-04-10 12:01:54 UTCM 4.552 km E of ?arai, Japan47.2 km · 2011-04-10 04:12:31 UTCM 4.861 km E of Hasaki, Japan17.1 km · 2011-04-10 00:00:56 UTCM 4.5100 km ENE of Hasaki, Japan46.3 km · 2011-04-09 14:53:28 UTCM 4.537 km ESE of Kitaibaraki, Japan88.5 km · 2011-04-09 08:53:30 UTCM 4.629 km SSE of Hasaki, Japan63.9 km · 2011-04-07 23:07:48 UTCM 4.675 km ESE of Kitaibaraki, Japan74.2 km · 2011-04-07 20:17:31 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 update6271543 min
2014-11-07 01:44:01 UTC2014-11-07 01:44:01 UTC

Explore related context

Related or nearby earthquakes

M 4.9 · 83 km ENE of Hasaki, Japan25 km · 2026-05-01 13:00:39 UTCM 4.7 · 16 km ENE of Hasaki, Japan43 km · 2026-08-29 15:17:06 UTCM 4.4 · 12 km SSE of Hasaki, Japan60 km · 2026-09-30 21:16:53 UTCM 4.5 · 11 km S of Hasaki, Japan62 km · 2026-06-26 04:00:06 UTC

Geographic context

CountryJapan →Nearby cityHasaki →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.

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