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Updated 2014-11-07 01:44:34 UTC

M 4.6 — 47 km ENE of Namie, Japan

Magnitude 4.6, depth 59.3 km, 2011-04-16 04:19:55 UTC.

MagnitudeM 4.6
Depth59.3 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 →
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What to know

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

  • Magnitude M 4.6 at 59.3 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#109,440
Magnitude rank in country#9,330
M4.5+ within 250 km, ±15 days312
Sequence context138 events →
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Impact and context

Descriptive indicators available for this event and its surroundings.

8/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance326
Depth contextShallow
Nearby major cityTokyo273 km · 14,000,000

Nearby major city

Tokyo273 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 4.6 · 47 km ENE of Namie, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.6 · 47 km ENE of Namie, Japan.M 4.6 · 47 km ENE of Namie, JapanM 5.0 · 40 km ENE of Namie, Japan · 7.6 kmM 4.6 · 13 km ESE of Namie, Japan · 39.3 kmM 4.5 · 66 km ESE of Namie, Japan · 49.3 kmM 4.6 · 63 km ESE of Namie, Japan · 42.8 kmM 6.1 · 31 km ESE of Namie, Japan · 33.0 kmM 4.6 · 98 km E of Iwaki, Japan · 84.5 kmM 4.8 · 38 km ENE of Ishinomaki, Japan · 96.0 kmM 4.7 · 51 km ESE of Ishinomaki, Japan · 77.9 kmM 5.0 · 77 km ESE of Ishinomaki, Japan · 81.3 kmM 4.8 · 42 km ENE of Namie, Japan · 5.0 kmM 4.5 · 8 km E of Iwaki, Japan · 80.9 kmM 4.6 · 18 km ESE of Ishikawa, Japan · 96.0 kmM 5.2 · 11 km WNW of Iwaki, Japan · 92.6 kmM 5.0 · 40 km E of Namie, Japan · 27.5 kmM 4.5 · 85 km SE of Ishinomaki, Japan · 44.2 kmM 4.5 · 126 km ESE of Namie, Japan · 96.1 kmM 4.5 · 36 km E of Namie, Japan · 22.0 kmM 4.5 · 37 km SE of Namie, Japan · 53.0 kmM 4.8 · 67 km E of Ishinomaki, Japan · 89.0 kmM 4.7 · 51 km ENE of Namie, Japan · 8.9 kmM 4.6 · 11 km ESE of Namie, Japan · 40.7 kmM 4.8 · 41 km SE of Iwaki, Japan · 96.5 kmM 4.7 · 20 km ESE of Namie, Japan · 40.2 kmM 4.8 · 120 km E of Namie, Japan · 78.7 kmM 4.8 · 127 km E of Namie, Japan · 87.3 kmM 5.5 · near the east coast of Honshu, Japan · 28.4 kmM 5.0 · 42 km SE of Ishinomaki, Japan · 55.4 kmM 4.6 · 41 km E of Ishinomaki, Japan · 84.2 kmM 4.9 · 26 km SE of Namie, Japan · 48.5 kmM 4.7 · 49 km ESE of Ishinomaki, Japan · 78.6 kmM 4.6 · 55 km SE of Ishinomaki, Japan · 43.5 kmM 4.5 · 30 km SE of Namie, Japan · 51.8 kmM 5.2 · 21 km NNE of Iwaki, Japan · 66.0 kmM 4.6 · 82 km ESE of Namie, Japan · 56.8 kmM 4.7 · 41 km ENE of Ishinomaki, Japan · 95.7 kmM 5.6 · 20 km ENE of Namie, Japan · 26.6 kmM 5.0 · 70 km E of Ishinomaki, Japan · 90.5 kmM 5.0 · 113 km ESE of Namie, Japan · 81.2 kmM 4.7 · 38 km SE of Ishinomaki, Japan · 62.1 kmM 4.6 · 22 km ENE of Iwaki, Japan · 70.6 kmM 4.5 · 46 km E of Namie, Japan · 29.7 kmM 4.9 · 22 km E of Iwaki, Japan · 78.8 kmM 4.6 · 4 km NE of Iwaki, Japan · 82.6 kmM 4.6 · 25 km ESE of Namie, Japan · 31.4 kmM 4.7 · 5 km NW of Iwaki, Japan · 85.5 kmM 4.5 · 60 km ESE of Ishinomaki, Japan · 78.5 kmM 5.0 · 128 km ESE of Namie, Japan · 96.6 kmM 4.6 · 19 km E of Namie, Japan · 31.7 kmM 4.8 · 22 km SSW of Namie, Japan · 64.3 kmM 4.5 · 2 km WNW of Iwaki, Japan · 87.4 kmM 4.5 · 81 km E of Ishinomaki, Japan · 94.1 kmM 4.5 · 36 km E of Iwaki, Japan · 67.3 kmM 4.6 · 110 km E of Namie, Japan · 74.7 kmM 4.7 · 46 km ESE of Ishinomaki, Japan · 71.5 kmM 4.5 · 18 km E of Ishikawa, Japan · 95.1 kmM 4.5 · 19 km WNW of Iwaki, Japan · 96.3 kmM 4.6 · 39 km ESE of Namie, Japan · 43.5 kmM 4.7 · 44 km E of Ishinomaki, Japan · 84.1 kmM 4.5 · 137 km E of Namie, Japan · 93.9 kmM 4.5 · 101 km ESE of Ishinomaki, Japan · 96.4 kmM 4.7 · 132 km SE of Ishinomaki, Japan · 93.9 kmM 5.8 · 14 km SSE of Marumori, Japan · 60.4 kmM 4.9 · 19 km E of Namie, Japan · 30.0 kmM 4.6 · 118 km ESE of Namie, Japan · 89.3 kmM 4.5 · 53 km SE of Namie, Japan · 51.6 kmM 4.5 · 47 km ESE of Ishinomaki, Japan · 74.8 kmM 4.6 · 47 km E of Ishinomaki, Japan · 81.0 kmM 4.7 · 16 km ESE of Ishikawa, Japan · 97.5 kmM 5.3 · 38 km ESE of Ishinomaki, Japan · 70.4 kmM 4.7 · 62 km ESE of Namie, Japan · 51.7 kmM 4.5 · 100 km SE of Ishinomaki, Japan · 72.4 kmM 4.5 · 55 km ESE of Ishinomaki, Japan · 78.4 kmM 4.6 · 86 km ESE of Ishinomaki, Japan · 90.9 kmM 4.5 · 52 km ESE of Ishinomaki, Japan · 67.4 kmM 4.5 · 69 km ESE of Namie, Japan · 48.2 kmM 4.7 · 101 km ESE of Ishinomaki, Japan · 90.0 kmM 4.6 · 50 km SE of Ishinomaki, Japan · 54.6 kmM 4.7 · 53 km ESE of Ishinomaki, Japan · 64.4 kmM 7.1 · 29 km ESE of Ishinomaki, Japan · 67.9 kmM 4.5 · 78 km ENE of Namie, Japan · 33.0 kmM 4.6 · 110 km ESE of Ishinomaki, Japan · 91.2 kmM 4.7 · 47 km ESE of Namie, Japan · 41.8 kmM 4.8 · 76 km E of Ishinomaki, Japan · 93.9 kmM 5.3 · 42 km ENE of Namie, Japan · 5.4 kmM 4.9 · 121 km E of Namie, Japan · 85.9 kmM 4.6 · 76 km E of Ishinomaki, Japan · 96.1 kmM 5.0 · 70 km E of Ishinomaki, Japan · 95.1 kmM 4.6 · 77 km E of Ishinomaki, Japan · 99.5 kmM 4.7 · 53 km ESE of Ishinomaki, Japan · 73.0 kmM 4.6 · 53 km E of Namie, Japan · 19.0 kmM 5.1 · 103 km E of Iwaki, Japan · 85.3 kmM 5.0 · 121 km ESE of Ishinomaki, Japan · 88.9 kmM 5.1 · 117 km SE of Ishinomaki, Japan · 82.6 kmM 4.7 · 76 km E of Ishinomaki, Japan · 92.3 kmM 5.0 · 101 km SE of Ishinomaki, Japan · 61.6 kmM 4.9 · 91 km SE of Ishinomaki, Japan · 58.7 kmM 4.9 · 35 km SE of Namie, Japan · 46.8 kmM 4.7 · 68 km E of Ishinomaki, Japan · 93.3 kmM 4.5 · 60 km ENE of Namie, Japan · 14.3 kmM 5.2 · 43 km ENE of Namie, Japan · 4.8 km
M 4.6 · 47 km ENE 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 5.040 km ENE of Namie, Japan7.6 km · 2011-05-14 23:50:49 UTCM 4.613 km ESE of Namie, Japan39.3 km · 2011-05-14 15:01:45 UTCM 4.566 km ESE of Namie, Japan49.3 km · 2011-05-14 00:25:12 UTCM 4.663 km ESE of Namie, Japan42.8 km · 2011-05-13 23:40:39 UTCM 6.131 km ESE of Namie, Japan33.0 km · 2011-05-13 23:35:52 UTCM 4.698 km E of Iwaki, Japan84.5 km · 2011-05-13 17:30:05 UTCM 4.838 km ENE of Ishinomaki, Japan96.0 km · 2011-05-11 18:21:48 UTCM 4.751 km ESE of Ishinomaki, Japan77.9 km · 2011-05-10 18:24:19 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 4.6 → M 4.6
Depth change+0.0 km
Last update6271833 min
2014-11-07 01:44:34 UTC2014-11-07 01:44:34 UTC

Explore related context

Related or nearby earthquakes

M 4.6 · 49 km E of Minami-Sōma, Japan8 km · 2026-09-14 10:59:54 UTCM 4.7 · 42 km ENE of Namie, Japan11 km · 2026-05-07 23:31:16 UTCM 4.5 · 2 km S of Namie, Japan48 km · 2026-03-10 06:28:04 UTCM 4.5 · 62 km E of Tomioka, Japan51 km · 2026-07-22 11:11:31 UTC

Geographic context

CountryJapan →Nearby cityNamie →Seismic sequenceM 4.6 →

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Putting this earthquake in context

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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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