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Updated 2014-11-07 01:43:56 UTC

M 5.1 — 146 km ESE of Namie, Japan

Magnitude 5.1, depth 35.0 km, 2011-03-11 11:06:44 UTC.

MagnitudeM 5.1
Depth35.0 km
Felt reports—
Statusreviewed
TsunamiNo

Japan → · Namie →

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 →
Quake Pulse

What to know

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

  • Magnitude M 5.1 at 35.0 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 days1,588
Sequence context1074 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 cityTokyo296 km · 14,000,000

Nearby major city

Tokyo296 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 · 146 km ESE of Namie, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 5.1 · 146 km ESE of Namie, Japan.M 5.1 · 146 km ESE of Namie, JapanM 4.7 · 224 km ESE of Namie, Japan · 79.3 kmM 5.1 · 109 km ESE of Iwaki, Japan · 53.5 kmM 4.8 · 211 km ESE of Iwaki, Japan · 72.5 kmM 4.7 · 62 km ESE of Namie, Japan · 84.3 kmM 4.6 · 227 km E of Namie, Japan · 87.8 kmM 4.7 · 119 km ESE of Iwaki, Japan · 53.0 kmM 4.6 · 186 km ESE of Iwaki, Japan · 57.1 kmM 4.7 · 110 km ESE of Iwaki, Japan · 57.1 kmM 4.5 · 69 km ESE of Namie, Japan · 76.3 kmM 4.5 · 78 km ENE of Namie, Japan · 93.3 kmM 4.7 · 47 km ESE of Namie, Japan · 99.1 kmM 4.6 · 232 km ESE of Iwaki, Japan · 99.4 kmM 4.9 · 121 km E of Namie, Japan · 38.7 kmM 4.7 · 112 km ESE of Iwaki, Japan · 54.4 kmM 4.5 · 113 km ESE of Takahagi, Japan · 90.7 kmM 4.5 · 147 km ESE of Iwaki, Japan · 46.7 kmM 4.9 · 224 km ESE of Iwaki, Japan · 84.4 kmM 5.1 · 103 km E of Iwaki, Japan · 44.3 kmM 5.0 · 121 km ESE of Ishinomaki, Japan · 89.6 kmM 5.1 · 117 km SE of Ishinomaki, Japan · 89.1 kmM 4.6 · 183 km E of Namie, Japan · 51.3 kmM 4.7 · 133 km ESE of Iwaki, Japan · 42.6 kmM 5.0 · 101 km SE of Ishinomaki, Japan · 93.2 kmM 5.1 · 116 km ESE of Iwaki, Japan · 46.1 kmM 4.8 · 130 km ESE of Namie, Japan · 18.4 kmM 4.9 · 110 km ESE of Iwaki, Japan · 49.6 kmM 4.6 · 227 km E of Namie, Japan · 99.5 kmM 4.5 · 135 km E of Iwaki, Japan · 18.8 kmM 5.1 · 91 km ESE of Iwaki, Japan · 72.2 kmM 4.8 · 221 km ESE of Namie, Japan · 77.0 kmM 4.8 · 225 km ESE of Namie, Japan · 81.4 kmM 4.9 · 199 km ESE of Ishinomaki, Japan · 96.9 kmM 4.6 · 91 km E of Namie, Japan · 62.4 kmM 5.1 · 114 km ENE of Namie, Japan · 78.8 kmM 4.5 · 122 km E of Iwaki, Japan · 33.3 kmM 4.7 · 78 km ESE of Iwaki, Japan · 79.6 kmM 4.6 · 77 km ENE of Namie, Japan · 99.7 kmM 4.6 · 154 km ENE of Hasaki, Japan · 92.8 kmM 4.5 · 98 km ENE of Namie, Japan · 83.5 kmM 4.6 · 59 km ESE of Namie, Japan · 87.0 kmM 5.7 · 154 km ENE of Hasaki, Japan · 98.2 kmM 4.9 · 138 km SE of Ishinomaki, Japan · 75.1 kmM 4.8 · 138 km E of Namie, Japan · 29.2 kmM 4.5 · 172 km ESE of Namie, Japan · 26.2 kmM 4.6 · 138 km SE of Ishinomaki, Japan · 78.0 kmM 4.5 · 135 km ESE of Namie, Japan · 23.8 kmM 4.6 · 100 km ESE of Iwaki, Japan · 68.5 kmM 4.7 · 144 km ESE of Namie, Japan · 14.8 kmM 4.5 · 140 km E of Namie, Japan · 30.9 kmM 4.6 · 141 km E of Namie, Japan · 40.2 kmM 6.1 · 114 km E of Namie, Japan · 47.6 kmM 4.5 · 138 km E of Iwaki, Japan · 13.3 kmM 4.5 · 215 km E of Iwaki, Japan · 71.9 kmM 4.5 · 136 km ESE of Iwaki, Japan · 51.4 kmM 4.5 · 186 km ESE of Iwaki, Japan · 48.7 kmM 4.7 · 76 km ESE of Iwaki, Japan · 86.8 kmM 4.5 · 157 km ENE of Hasaki, Japan · 81.2 kmM 4.6 · 122 km E of Namie, Japan · 35.9 kmM 4.7 · 118 km E of Namie, Japan · 73.2 kmM 4.7 · 126 km E of Namie, Japan · 74.7 kmM 4.7 · 193 km ESE of Namie, Japan · 50.6 kmM 5.1 · 211 km ESE of Namie, Japan · 67.0 kmM 4.7 · 146 km E of Namie, Japan · 52.1 kmM 4.5 · 68 km E of Namie, Japan · 88.6 kmM 4.7 · 64 km E of Namie, Japan · 93.9 kmM 4.5 · 199 km ENE of Hasaki, Japan · 90.8 kmM 4.9 · 216 km ESE of Namie, Japan · 71.7 kmM 4.7 · 134 km E of Namie, Japan · 31.9 kmM 4.6 · 226 km ESE of Namie, Japan · 81.8 kmM 4.8 · 244 km E of Iwaki, Japan · 99.1 kmM 4.7 · 129 km E of Namie, Japan · 31.5 kmM 4.6 · 159 km ESE of Ishinomaki, Japan · 76.6 kmM 4.5 · 171 km ESE of Ishinomaki, Japan · 87.1 kmM 4.7 · 177 km ENE of Hasaki, Japan · 77.9 kmM 4.6 · 131 km ENE of Hasaki, Japan · 95.6 kmM 4.6 · 134 km ESE of Namie, Japan · 12.7 kmM 4.9 · 169 km ENE of Hasaki, Japan · 87.3 kmM 4.5 · 72 km E of Namie, Japan · 83.7 kmM 4.9 · 165 km ENE of Hasaki, Japan · 81.0 kmM 4.6 · 212 km ESE of Iwaki, Japan · 89.9 kmM 4.8 · 168 km ENE of Hasaki, Japan · 92.2 kmM 4.9 · 168 km ENE of Hasaki, Japan · 85.7 kmM 4.6 · 168 km ENE of Hasaki, Japan · 94.5 kmM 4.7 · 152 km E of Namie, Japan · 65.7 kmM 4.7 · 121 km E of Iwaki, Japan · 26.6 kmM 4.8 · 198 km ESE of Iwaki, Japan · 84.4 kmM 4.7 · 95 km ESE of Kitaibaraki, Japan · 82.9 kmM 4.8 · 84 km E of Namie, Japan · 79.6 kmM 4.8 · 164 km E of Namie, Japan · 43.6 kmM 5.0 · 157 km ESE of Ishinomaki, Japan · 73.5 kmM 4.5 · 152 km SE of Ishinomaki, Japan · 71.2 kmM 4.6 · 159 km ENE of Hasaki, Japan · 86.5 kmM 4.9 · 127 km E of Iwaki, Japan · 22.5 kmM 4.6 · 59 km E of Namie, Japan · 90.2 kmM 4.8 · 203 km E of Iwaki, Japan · 58.6 kmM 4.5 · 216 km ESE of Iwaki, Japan · 78.8 kmM 4.6 · 201 km ESE of Iwaki, Japan · 63.3 kmM 5.6 · 206 km ESE of Namie, Japan · 59.9 kmM 4.8 · 75 km ESE of Namie, Japan · 71.1 kmM 4.6 · 233 km ESE of Namie, Japan · 89.8 km
M 5.1 · 146 km ESE of Namie, 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 4.7224 km ESE of Namie, Japan79.3 km · 2011-04-10 05:23:28 UTCM 5.1109 km ESE of Iwaki, Japan53.5 km · 2011-04-09 01:25:26 UTCM 4.8211 km ESE of Iwaki, Japan72.5 km · 2011-04-08 21:30:12 UTCM 4.762 km ESE of Namie, Japan84.3 km · 2011-04-08 19:06:59 UTCM 4.6227 km E of Namie, Japan87.8 km · 2011-04-08 03:45:41 UTCM 4.7119 km ESE of Iwaki, Japan53.0 km · 2011-04-08 00:56:24 UTCM 4.6186 km ESE of Iwaki, Japan57.1 km · 2011-04-07 21:13:37 UTCM 4.7110 km ESE of Iwaki, Japan57.1 km · 2011-04-07 19:11:14 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 update6271384 min
2014-11-07 01:43:56 UTC2014-11-07 01:43:56 UTC

Explore related context

Related or nearby earthquakes

M 4.5 · 109 km E of Tomioka, Japan33 km · 2026-09-14 07:33:04 UTCM 4.5 · 90 km E of Tomioka, Japan51 km · 2026-05-08 20:11:23 UTCM 4.4 · 90 km ESE of Tomioka, Japan56 km · 2026-08-23 00:32:24 UTCM 4.7 · 77 km E of Tomioka, Japan64 km · 2026-08-25 20:23:36 UTC

Geographic context

CountryJapan →Nearby cityNamie →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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