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Updated 2014-11-07 01:44:13 UTC

M 4.7 — 207 km E of Miyako, Japan

Magnitude 4.7, depth 10.0 km, 2011-03-18 12:57:06 UTC.

MagnitudeM 4.7
Depth10.0 km
Felt reports—
Statusreviewed
TsunamiNo

Japan → · Miyako →

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#83,653
Magnitude rank in country#6,890
M4.5+ within 250 km, ±15 days816
Sequence context1008 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 · 207 km E of Miyako, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.7 · 207 km E of Miyako, Japan.M 4.7 · 207 km E of Miyako, JapanM 4.7 · 138 km E of Miyako, Japan · 72.1 kmM 4.5 · 143 km E of Yamada, Japan · 73.3 kmM 4.5 · 138 km ENE of Miyako, Japan · 81.3 kmM 4.8 · 117 km E of Miyako, Japan · 89.9 kmM 4.7 · 120 km E of Yamada, Japan · 90.6 kmM 4.7 · 127 km E of Yamada, Japan · 82.0 kmM 5.0 · 121 km E of Yamada, Japan · 88.9 kmM 5.0 · 126 km E of Yamada, Japan · 82.9 kmM 6.0 · 120 km E of Yamada, Japan · 88.8 kmM 4.7 · 150 km ENE of Miyako, Japan · 65.7 kmM 4.7 · 116 km E of Miyako, Japan · 91.1 kmM 4.9 · 136 km E of Yamada, Japan · 84.8 kmM 4.6 · 175 km E of Miyako, Japan · 32.5 kmM 4.5 · 206 km E of Miyako, Japan · 5.3 kmM 5.5 · 130 km E of Yamada, Japan · 78.9 kmM 4.7 · 128 km ENE of Miyako, Japan · 85.8 kmM 4.8 · 207 km E of Yamada, Japan · 64.9 kmM 4.6 · 204 km E of Yamada, Japan · 56.9 kmM 4.7 · 165 km ENE of Miyako, Japan · 83.6 kmM 4.7 · 129 km E of Miyako, Japan · 78.5 kmM 4.8 · off the east coast of Honshu, Japan · 83.1 kmM 4.5 · 165 km E of Yamada, Japan · 56.2 kmM 4.8 · 132 km E of Yamada, Japan · 81.9 kmM 4.8 · 136 km E of Miyako, Japan · 71.2 kmM 4.6 · 135 km E of Yamada, Japan · 73.5 kmM 5.2 · 113 km E of Miyako, Japan · 94.5 kmM 4.6 · 126 km E of Miyako, Japan · 80.9 kmM 4.7 · 171 km ENE of Miyako, Japan · 63.6 kmM 4.7 · 160 km E of Miyako, Japan · 54.5 kmM 4.9 · 140 km ENE of Miyako, Japan · 74.8 kmM 4.8 · 138 km ENE of Miyako, Japan · 76.8 kmM 4.5 · 153 km E of Yamada, Japan · 64.1 kmM 6.4 · 130 km E of Miyako, Japan · 80.2 kmM 4.8 · 140 km E of Yamada, Japan · 69.6 kmM 4.8 · 163 km ENE of Miyako, Japan · 82.1 kmM 5.2 · 136 km E of Miyako, Japan · 74.1 kmM 4.5 · 155 km E of Miyako, Japan · 58.9 kmM 4.6 · 205 km E of Miyako, Japan · 16.7 kmM 4.7 · off the east coast of Honshu, Japan · 35.8 kmM 4.7 · 212 km E of Miyako, Japan · 15.4 kmM 4.5 · 119 km E of Miyako, Japan · 88.2 kmM 4.6 · 127 km E of Miyako, Japan · 84.1 kmM 4.9 · 119 km E of Miyako, Japan · 88.1 kmM 4.8 · 143 km E of Miyako, Japan · 64.3 kmM 4.5 · 149 km E of Miyako, Japan · 59.0 kmM 4.7 · 146 km E of Yamada, Japan · 80.6 kmM 4.6 · 237 km ESE of Yamada, Japan · 83.9 kmM 4.8 · 229 km ESE of Yamada, Japan · 78.9 kmM 4.7 · 216 km ESE of Yamada, Japan · 99.7 kmM 4.8 · 144 km E of Miyako, Japan · 65.2 kmM 4.7 · 155 km E of Miyako, Japan · 51.9 kmM 5.2 · 128 km E of Miyako, Japan · 80.4 kmM 4.7 · 225 km E of Yamada, Japan · 69.7 kmM 4.6 · 211 km ESE of Yamada, Japan · 83.5 kmM 4.5 · 220 km ESE of Yamada, Japan · 97.9 kmM 4.6 · 216 km ESE of Yamada, Japan · 85.6 kmM 4.7 · 225 km ESE of Yamada, Japan · 92.4 kmM 4.5 · 131 km E of Miyako, Japan · 76.7 kmM 4.6 · 198 km E of Yamada, Japan · 45.6 kmM 5.2 · 182 km ENE of Miyako, Japan · 86.4 kmM 4.6 · 146 km E of Yamada, Japan · 76.6 kmM 4.7 · 195 km ENE of Miyako, Japan · 66.1 kmM 5.2 · 139 km E of Miyako, Japan · 68.0 kmM 5.0 · 126 km ESE of Yamada, Japan · 99.9 kmM 4.7 · 158 km E of Miyako, Japan · 55.6 kmM 4.8 · 141 km E of Miyako, Japan · 68.6 kmM 4.5 · 144 km E of Yamada, Japan · 66.0 kmM 5.2 · 214 km E of Yamada, Japan · 63.0 kmM 5.2 · 166 km ENE of Miyako, Japan · 86.2 kmM 4.6 · 133 km E of Yamada, Japan · 76.8 kmM 4.8 · 234 km ENE of Miyako, Japan · 69.9 kmM 4.9 · off the east coast of Honshu, Japan · 8.6 kmM 4.7 · 118 km E of Miyako, Japan · 89.4 kmM 4.5 · 157 km E of Miyako, Japan · 50.8 kmM 4.5 · 205 km E of Miyako, Japan · 12.6 kmM 4.7 · 235 km E of Yamada, Japan · 50.3 kmM 4.8 · 208 km E of Miyako, Japan · 1.4 kmM 4.7 · 240 km E of Miyako, Japan · 34.9 kmM 4.9 · 212 km E of Miyako, Japan · 4.6 kmM 4.9 · 142 km E of Miyako, Japan · 65.9 kmM 4.7 · off the east coast of Honshu, Japan · 78.7 kmM 4.7 · 237 km E of Yamada, Japan · 38.4 kmM 4.8 · 210 km ESE of Yamada, Japan · 94.2 kmM 4.8 · 214 km E of Miyako, Japan · 7.2 kmM 4.8 · 207 km E of Miyako, Japan · 11.8 kmM 4.5 · 203 km E of Miyako, Japan · 6.6 kmM 4.5 · 139 km E of Miyako, Japan · 71.1 kmM 4.7 · 219 km E of Miyako, Japan · 13.0 kmM 4.6 · 141 km E of Miyako, Japan · 66.7 kmM 5.1 · 113 km E of Yamada, Japan · 97.9 kmM 5.1 · 206 km E of Miyako, Japan · 4.0 kmM 4.7 · 149 km E of Miyako, Japan · 59.9 kmM 4.7 · 123 km ENE of Miyako, Japan · 87.8 kmM 4.8 · 119 km E of Miyako, Japan · 90.7 kmM 5.0 · 250 km ESE of Yamada, Japan · 98.3 kmM 4.6 · 138 km E of Yamada, Japan · 80.0 kmM 4.5 · 245 km ESE of Yamada, Japan · 82.4 kmM 4.6 · 164 km ESE of Yamada, Japan · 98.2 kmM 4.6 · 239 km E of Yamada, Japan · 49.1 kmM 4.6 · 239 km ESE of Yamada, Japan · 87.1 km
M 4.7 · 207 km E of Miyako, 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 4.7138 km E of Miyako, Japan72.1 km · 2011-04-17 02:59:55 UTCM 4.5143 km E of Yamada, Japan73.3 km · 2011-04-17 02:59:25 UTCM 4.5138 km ENE of Miyako, Japan81.3 km · 2011-04-17 02:55:58 UTCM 4.8117 km E of Miyako, Japan89.9 km · 2011-04-14 10:32:33 UTCM 4.7120 km E of Yamada, Japan90.6 km · 2011-04-13 21:21:49 UTCM 4.7127 km E of Yamada, Japan82.0 km · 2011-04-13 20:20:05 UTCM 5.0121 km E of Yamada, Japan88.9 km · 2011-04-13 20:03:49 UTCM 5.0126 km E of Yamada, Japan82.9 km · 2011-04-13 20:02:30 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 update6271910 min
2014-11-07 01:44:13 UTC2014-11-07 01:44:13 UTC

Explore related context

Related or nearby earthquakes

M 4.6 · 153 km E of Miyako, Japan55 km · 2026-08-06 17:50:39 UTCM 5.3 · 151 km E of Miyako, Japan58 km · 2026-08-06 17:43:36 UTCM 4.7 · 151 km E of Miyako, Japan59 km · 2026-04-21 05:19:56 UTCM 4.9 · 151 km E of Miyako, Japan60 km · 2026-05-11 00:21:40 UTC

Geographic context

CountryJapan →Nearby cityMiyako →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.

Read the methodology →

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