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Updated 2014-11-07 01:44:54 UTC

M 4.7 — 32 km E of Kitaibaraki, Japan

Magnitude 4.7, depth 35.0 km, 2011-05-24 10:18:16 UTC.

MagnitudeM 4.7
Depth35.0 km
Felt reports—
Statusreviewed
TsunamiNo

Japan → · Kitaibaraki →

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 4.7 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#83,652
Magnitude rank in country#6,890
M4.5+ within 250 km, ±15 days129
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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 cityTokyo176 km · 14,000,000

Nearby major city

Tokyo176 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 4.7 · 32 km E of Kitaibaraki, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.7 · 32 km E of Kitaibaraki, Japan.M 4.7 · 32 km E of Kitaibaraki, JapanM 4.7 · 28 km NE of Iwaki, Japan · 49.6 kmM 4.6 · 13 km ESE of Funaishikawa, Japan · 53.3 kmM 4.9 · 96 km NE of Hasaki, Japan · 80.8 kmM 4.6 · 38 km E of Iwaki, Japan · 30.9 kmM 4.7 · 20 km SSE of Iwaki, Japan · 16.3 kmM 4.9 · 58 km ESE of Kitaibaraki, Japan · 26.9 kmM 4.5 · 27 km E of Iwaki, Japan · 30.7 kmM 4.6 · 3 km S of Ishikawa, Japan · 69.6 kmM 4.6 · 15 km W of Takahagi, Japan · 50.1 kmM 4.9 · 103 km ESE of Iwaki, Japan · 76.0 kmM 4.5 · 120 km ESE of Iwaki, Japan · 94.2 kmM 4.9 · 83 km NE of Hasaki, Japan · 77.8 kmM 4.9 · 37 km SE of Hitachi, Japan · 41.3 kmM 4.5 · 39 km E of Iwaki, Japan · 40.7 kmM 4.6 · 21 km SE of Ishikawa, Japan · 52.7 kmM 4.5 · 26 km NNE of Hasaki, Japan · 92.8 kmM 4.8 · 118 km ESE of Iwaki, Japan · 92.0 kmM 4.6 · 25 km E of ?arai, Japan · 53.6 kmM 4.8 · 87 km NE of Hasaki, Japan · 77.3 kmM 5.4 · 17 km SE of Hitachi, Japan · 44.2 kmM 4.6 · 61 km E of Namie, Japan · 86.6 kmM 4.7 · 104 km E of Iwaki, Japan · 85.7 kmM 4.5 · 50 km SE of Namie, Japan · 55.9 kmM 5.5 · 3 km NE of Iwaki, Japan · 37.2 kmM 4.6 · 13 km NE of Daigo, Japan · 57.1 kmM 4.6 · 93 km ESE of Iwaki, Japan · 69.7 kmM 4.7 · near the east coast of Honshu, Japan · 81.6 kmM 4.6 · 26 km SE of Hitachi, Japan · 43.3 kmM 4.9 · 16 km E of Funaishikawa, Japan · 46.2 kmM 5.0 · 123 km ENE of Hasaki, Japan · 97.7 kmM 4.7 · 4 km WNW of Funaishikawa, Japan · 60.9 kmM 4.6 · 50 km ESE of Hitachi, Japan · 38.4 kmM 4.7 · 1 km SW of Iwaki, Japan · 36.7 kmM 4.6 · 63 km ESE of Takahagi, Japan · 37.1 kmM 4.8 · 3 km NE of Daigo, Japan · 65.6 kmM 4.5 · 53 km E of Namie, Japan · 82.2 kmM 4.9 · 3 km WSW of Iwaki, Japan · 38.3 kmM 4.7 · 123 km ESE of Kitaibaraki, Japan · 93.3 kmM 5.0 · 32 km ENE of ?arai, Japan · 46.3 kmM 4.5 · 56 km E of ?arai, Japan · 51.1 kmM 4.6 · 50 km SE of Namie, Japan · 55.8 kmM 5.1 · 36 km E of Namie, Japan · 79.2 kmM 4.5 · 16 km NNW of Kitaibaraki, Japan · 42.3 kmM 4.5 · 33 km ESE of Takahagi, Japan · 17.5 kmM 4.6 · 50 km SE of Namie, Japan · 60.0 kmM 4.5 · 1 km N of Kitaibaraki, Japan · 32.1 kmM 4.8 · 14 km ESE of Namie, Japan · 72.8 kmM 4.6 · 13 km ESE of Namie, Japan · 74.5 kmM 4.5 · 66 km ESE of Namie, Japan · 75.5 kmM 4.6 · 63 km ESE of Namie, Japan · 80.4 kmM 6.1 · 31 km ESE of Namie, Japan · 72.5 kmM 4.8 · 25 km NNE of Hasaki, Japan · 94.2 kmM 4.6 · 98 km E of Iwaki, Japan · 83.4 kmM 4.5 · 10 km ENE of Daigo, Japan · 57.8 kmM 4.6 · 38 km E of ?arai, Japan · 47.7 kmM 4.7 · 108 km ESE of Iwaki, Japan · 81.8 kmM 5.1 · 89 km NE of Hasaki, Japan · 74.5 kmM 4.7 · 44 km ENE of Kashima-shi, Japan · 70.4 kmM 4.6 · 2 km SE of Daigo, Japan · 65.8 kmM 4.5 · 35 km E of ?arai, Japan · 57.3 kmM 4.5 · 31 km ESE of Hitachi, Japan · 28.8 kmM 4.5 · 8 km E of Iwaki, Japan · 34.4 kmM 4.6 · 18 km ESE of Ishikawa, Japan · 55.9 kmM 4.6 · 89 km ENE of Hasaki, Japan · 88.0 kmM 4.7 · 37 km ESE of Takahagi, Japan · 18.5 kmM 4.8 · 100 km ESE of Kitaibaraki, Japan · 68.9 kmM 4.7 · 120 km ESE of Iwaki, Japan · 94.4 kmM 5.2 · 11 km WNW of Iwaki, Japan · 45.9 kmM 5.0 · 40 km E of Namie, Japan · 78.7 kmM 4.7 · 14 km WNW of Takahagi, Japan · 47.5 kmM 4.7 · 54 km E of ?arai, Japan · 57.6 kmM 4.5 · 20 km S of Ishikawa, Japan · 65.2 kmM 4.5 · 36 km E of Namie, Japan · 83.4 kmM 4.5 · 37 km SE of Namie, Japan · 52.5 kmM 4.5 · 115 km E of Iwaki, Japan · 94.9 kmM 4.6 · 11 km ESE of Namie, Japan · 75.2 kmM 4.9 · 19 km E of ?arai, Japan · 57.2 kmM 4.8 · 41 km SE of Iwaki, Japan · 14.0 kmM 4.8 · 27 km E of Kitaibaraki, Japan · 5.1 kmM 4.7 · 20 km ESE of Namie, Japan · 69.0 kmM 5.1 · 28 km E of Kitaibaraki, Japan · 4.0 kmM 4.5 · 117 km ESE of Iwaki, Japan · 93.0 kmM 5.5 · near the east coast of Honshu, Japan · 90.1 kmM 4.5 · 114 km ESE of Kitaibaraki, Japan · 84.7 kmM 4.9 · 26 km SE of Namie, Japan · 59.4 kmM 4.6 · 48 km ESE of ?arai, Japan · 60.6 kmM 5.1 · 116 km ESE of Iwaki, Japan · 94.6 kmM 5.1 · 29 km ESE of ?arai, Japan · 64.7 kmM 4.6 · 77 km ESE of Iwaki, Japan · 49.0 km
M 4.7 · 32 km E of Kitaibaraki, Japan100 km89 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

No public sequence is currently associated with this event.

Nearby events · 100 km

M 4.728 km NE of Iwaki, Japan49.6 km · 2011-06-23 08:22:48 UTCM 4.613 km ESE of Funaishikawa, Japan53.3 km · 2011-06-22 18:19:01 UTCM 4.996 km NE of Hasaki, Japan80.8 km · 2011-06-21 21:16:00 UTCM 4.638 km E of Iwaki, Japan30.9 km · 2011-06-19 18:58:36 UTCM 4.720 km SSE of Iwaki, Japan16.3 km · 2011-06-19 18:13:06 UTCM 4.958 km ESE of Kitaibaraki, Japan26.9 km · 2011-06-18 20:05:29 UTCM 4.527 km E of Iwaki, Japan30.7 km · 2011-06-18 19:10:31 UTCM 4.63 km S of Ishikawa, Japan69.6 km · 2011-06-18 04:39:08 UTC
Quake Pulse

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 update6271553 min
2014-11-07 01:44:54 UTC2014-11-07 01:44:54 UTC

Explore related context

Related or nearby earthquakes

M 4.5 · 37 km ESE of Iwaki, Japan25 km · 2026-10-07 00:22:41 UTCM 4.2 · 9 km WNW of Kitaibaraki, Japan41 km · 2026-08-07 18:41:31 UTCM 4.3 · 18 km E of Funaishikawa, Japan46 km · 2026-08-20 05:28:40 UTCM 4.7 · 16 km SSE of Tomioka, Japan49 km · 2026-08-15 01:10:51 UTC

Geographic context

CountryJapan →Nearby cityKitaibaraki →

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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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