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Updated 2014-11-07 01:43:55 UTC

M 4.7 — 161 km E of Yamada, Japan

Magnitude 4.7, depth 10.0 km, 2011-03-11 09:03:39 UTC.

MagnitudeM 4.7
Depth10.0 km
Felt reports—
Statusreviewed
TsunamiNo

Japan → · Yamada →

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 4.7 at 10.0 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#83,657
Magnitude rank in country#6,890
M4.5+ within 250 km, ±15 days896
Sequence context1686 events →
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Impact and context

Descriptive indicators available for this event and its surroundings.

10/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance340
Depth contextShallow
Nearby major city—
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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 4.7 · 161 km E of Yamada, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.7 · 161 km E of Yamada, Japan.M 4.7 · 161 km E of Yamada, JapanM 4.7 · 116 km E of Miyako, Japan · 53.6 kmM 4.7 · 108 km ENE of Miyako, Japan · 71.5 kmM 5.1 · 88 km ESE of Yamada, Japan · 89.5 kmM 4.9 · 136 km E of Yamada, Japan · 32.8 kmM 4.5 · 71 km E of Miyako, Japan · 91.9 kmM 4.9 · 73 km ESE of Yamada, Japan · 97.0 kmM 4.6 · 131 km ESE of Yamada, Japan · 59.8 kmM 4.5 · 100 km E of Yamada, Japan · 60.9 kmM 4.6 · 175 km E of Miyako, Japan · 27.8 kmM 4.7 · 103 km ESE of Yamada, Japan · 76.8 kmM 4.6 · 124 km ENE of Miyako, Japan · 81.5 kmM 4.5 · 206 km E of Miyako, Japan · 53.3 kmM 4.7 · 87 km ESE of Yamada, Japan · 81.9 kmM 5.5 · 130 km E of Yamada, Japan · 33.4 kmM 4.7 · 128 km ENE of Miyako, Japan · 61.0 kmM 4.5 · 71 km E of Miyako, Japan · 90.8 kmM 4.7 · 92 km E of Yamada, Japan · 72.5 kmM 4.5 · 105 km ENE of Miyako, Japan · 74.2 kmM 4.7 · 94 km ESE of Kamaishi, Japan · 89.5 kmM 4.6 · 100 km E of Miyako, Japan · 64.7 kmM 4.8 · 207 km E of Yamada, Japan · 58.2 kmM 4.6 · 204 km E of Yamada, Japan · 51.9 kmM 4.7 · 165 km ENE of Miyako, Japan · 87.4 kmM 4.7 · 129 km E of Miyako, Japan · 39.8 kmM 4.8 · off the east coast of Honshu, Japan · 45.7 kmM 4.5 · 165 km E of Yamada, Japan · 12.5 kmM 4.8 · 132 km E of Yamada, Japan · 30.3 kmM 4.8 · 136 km E of Miyako, Japan · 38.3 kmM 4.6 · 135 km E of Yamada, Japan · 26.8 kmM 5.2 · 113 km E of Miyako, Japan · 50.0 kmM 4.6 · 126 km E of Miyako, Japan · 39.7 kmM 4.7 · 171 km ENE of Miyako, Japan · 71.0 kmM 4.7 · 160 km E of Miyako, Japan · 47.9 kmM 4.9 · 140 km ENE of Miyako, Japan · 55.5 kmM 4.8 · 138 km ENE of Miyako, Japan · 56.4 kmM 4.5 · 153 km E of Yamada, Japan · 12.6 kmM 5.6 · 101 km E of Miyako, Japan · 66.4 kmM 6.4 · 130 km E of Miyako, Japan · 51.4 kmM 4.8 · 140 km E of Yamada, Japan · 21.7 kmM 4.8 · 163 km ENE of Miyako, Japan · 84.6 kmM 4.9 · 114 km ESE of Yamada, Japan · 73.0 kmM 5.2 · 136 km E of Miyako, Japan · 47.4 kmM 4.6 · 61 km E of Yamada, Japan · 99.7 kmM 4.5 · 155 km E of Miyako, Japan · 47.4 kmM 4.6 · 211 km ESE of Kamaishi, Japan · 93.0 kmM 4.6 · 87 km ESE of Yamada, Japan · 83.4 kmM 4.6 · 205 km E of Miyako, Japan · 59.0 kmM 4.7 · off the east coast of Honshu, Japan · 42.4 kmM 4.7 · 212 km E of Miyako, Japan · 63.5 kmM 4.9 · 98 km ENE of Miyako, Japan · 82.1 kmM 4.5 · 119 km E of Miyako, Japan · 46.3 kmM 5.4 · 94 km E of Yamada, Japan · 67.2 kmM 5.9 · 82 km E of Miyako, Japan · 82.0 kmM 4.6 · 127 km E of Miyako, Japan · 55.9 kmM 4.9 · 101 km E of Miyako, Japan · 61.8 kmM 4.9 · 119 km E of Miyako, Japan · 48.7 kmM 4.8 · 108 km ESE of Yamada, Japan · 63.7 kmM 4.7 · 207 km E of Miyako, Japan · 52.2 kmM 4.5 · 110 km ENE of Miyako, Japan · 68.8 kmM 4.8 · 92 km ESE of Yamada, Japan · 80.0 kmM 4.7 · 197 km ESE of Kamaishi, Japan · 97.1 kmM 4.8 · 143 km E of Miyako, Japan · 34.3 kmM 4.5 · 149 km E of Miyako, Japan · 35.0 kmM 4.9 · 188 km ESE of Kamaishi, Japan · 90.5 kmM 4.8 · 202 km ESE of Kamaishi, Japan · 97.2 kmM 5.2 · 190 km ESE of Kamaishi, Japan · 93.0 kmM 4.7 · 146 km E of Yamada, Japan · 30.6 kmM 4.8 · 222 km ESE of Yamada, Japan · 93.1 kmM 4.9 · 207 km ESE of Yamada, Japan · 82.8 kmM 4.8 · 203 km ESE of Yamada, Japan · 81.1 kmM 4.6 · 91 km E of Miyako, Japan · 71.2 kmM 4.6 · 237 km ESE of Yamada, Japan · 89.1 kmM 4.8 · 229 km ESE of Yamada, Japan · 81.4 kmM 4.7 · 85 km ESE of Yamada, Japan · 84.2 kmM 4.7 · 216 km ESE of Yamada, Japan · 86.1 kmM 4.8 · 144 km E of Miyako, Japan · 40.3 kmM 4.7 · 155 km E of Miyako, Japan · 23.3 kmM 5.2 · 128 km E of Miyako, Japan · 47.8 kmM 4.7 · 225 km E of Yamada, Japan · 73.7 kmM 4.7 · 213 km ESE of Yamada, Japan · 90.3 kmM 4.8 · 101 km E of Yamada, Japan · 61.2 kmM 4.5 · 113 km ESE of Yamada, Japan · 63.8 kmM 4.6 · 142 km ENE of Miyako, Japan · 94.9 kmM 4.6 · 211 km ESE of Yamada, Japan · 72.0 kmM 4.5 · 220 km ESE of Yamada, Japan · 86.8 kmM 4.6 · 216 km ESE of Yamada, Japan · 76.5 kmM 4.7 · 225 km ESE of Yamada, Japan · 86.2 kmM 4.5 · 131 km E of Miyako, Japan · 44.6 kmM 4.7 · 63 km E of Yamada, Japan · 97.7 kmM 4.6 · 198 km E of Yamada, Japan · 41.3 kmM 5.0 · 92 km ENE of Miyako, Japan · 83.5 kmM 5.2 · 182 km ENE of Miyako, Japan · 99.4 kmM 4.6 · 137 km ESE of Yamada, Japan · 54.4 kmM 4.7 · 97 km ESE of Yamada, Japan · 83.8 kmM 4.6 · 146 km E of Yamada, Japan · 25.8 kmM 4.7 · 195 km ENE of Miyako, Japan · 88.8 kmM 5.2 · 139 km E of Miyako, Japan · 35.3 kmM 5.0 · 126 km ESE of Yamada, Japan · 48.0 kmM 4.7 · 158 km E of Miyako, Japan · 46.9 kmM 4.8 · 141 km E of Miyako, Japan · 43.3 km
M 4.7 · 161 km E of Yamada, 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 4.7116 km E of Miyako, Japan53.6 km · 2011-04-09 02:33:50 UTCM 4.7108 km ENE of Miyako, Japan71.5 km · 2011-04-09 02:31:04 UTCM 5.188 km ESE of Yamada, Japan89.5 km · 2011-04-07 22:02:19 UTCM 4.9136 km E of Yamada, Japan32.8 km · 2011-04-06 19:20:20 UTCM 4.571 km E of Miyako, Japan91.9 km · 2011-04-06 06:14:30 UTCM 4.973 km ESE of Yamada, Japan97.0 km · 2011-04-04 13:11:31 UTCM 4.6131 km ESE of Yamada, Japan59.8 km · 2011-04-04 06:12:57 UTCM 4.5100 km E of Yamada, Japan60.9 km · 2011-04-03 23:54:28 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 4.7 → M 4.7
Depth change+0.0 km
Last update6272520 min
2014-11-07 01:43:55 UTC2014-11-07 01:43:55 UTC

Explore related context

Related or nearby earthquakes

M 4.6 · 153 km E of Miyako, Japan17 km · 2026-08-06 17:50:39 UTCM 5.3 · 151 km E of Miyako, Japan17 km · 2026-08-06 17:43:36 UTCM 4.5 · 136 km E of Yamada, Japan27 km · 2026-04-20 16:13:12 UTCM 5.1 · 133 km E of Yamada, Japan28 km · 2026-04-20 10:44:10 UTC

Geographic context

CountryJapan →Nearby cityYamada →Seismic sequenceM 4.7 →

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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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