Sequence · 2026-07-01

M 6.0 · Observed seismic cluster · 54 km ENE of Noda, Japan

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions.

M4.5+ events in cluster10
M6+1
Analysis radius180 km
Observation window14 days
Largest secondary eventM 5.1
Quake Pulse · Notable sequence

What the sequence shows

After the M 6.0 reference event, Quake Pulse counts 2 M4+ event(s) in the first 24 hours and 7 in the first 7 days. Fourteen-day M4.5+ activity is about 1.0× the average equivalent derived from the previous year. The largest secondary event is M 0.9 below the reference event.

51/100Sequence score
Events in the previous 24 h1
In the first hour0
In the first 24 hours2
In the first 7 days7
Within 14 days9
Peak one-hour count2

Local historical context

Descriptive comparison with M4.5+ events observed in the same radius during the 365 days before the sequence.

M4.5+ events / 365 d232Average 14-day equivalent8.9Activity / baseline ratio1.0×

A ratio above 1 means denser M4.5+ activity than the average equivalent derived from the previous 365 days. It is not a risk measure or a forecast.

Reference event

Largest secondary eventM 5.1Magnitude gapM 0.9Observed duration12.8 d

Earlier events are shown as context only. They are not labelled precursors and should not be interpreted as predictive signals.

Evolving sequence map

Shows M4+ cluster events according to elapsed time after the reference event.

54 km ENE of Noda, Japan · 180 kmInteractive 3D view of earthquakes within 180 km of 54 km ENE of Noda, Japan.54 km ENE of Noda, JapanM 4.7 · 50 km ENE of Kuji, Japan · 20.6 kmM 4.6 · 70 km ENE of Hachinohe, Japan · 65.9 km
54 km ENE of Noda, Japan180 km2 Recent earthquakes

Detailed timeline

Dots represent M4+ events retained by the sequence detector. Dot size depends on magnitude.

Sequences are descriptive groupings based on spatial and temporal proximity. Quake Pulse does not establish a causal link between every event here and does not provide earthquake forecasts.

Quake Pulse

Main-event impact

9 Felt reports · PAGER GREEN · Shallow

38/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.054 km ENE of Noda, Japan35.0 km2026-07-01 12:08:29 UTCView event →
M 4.750 km ENE of Kuji, Japan57.7 km2026-07-01 16:15:33 UTCView event →
M 4.670 km ENE of Hachinohe, Japan55.8 km2026-07-02 04:48:21 UTCView event →
M 4.951 km ESE of Ōfunato, Japan51.0 km2026-07-03 01:44:52 UTCView event →
M 4.5100 km ENE of Misawa, Japan56.2 km2026-07-03 19:58:23 UTCView event →
M 4.627 km N of Kuji, Japan65.9 km2026-07-06 11:29:36 UTCView event →
M 4.649 km E of Noda, Japan54.9 km2026-07-06 17:09:03 UTCView event →
M 4.69 km NE of Kuji, Japan73.6 km2026-07-08 07:35:53 UTCView event →
M 5.1133 km ENE of Miyako, Japan11.5 km2026-07-14 07:44:08 UTCView event →
M 5.050 km E of Noda, Japan56.5 km2026-07-14 08:07:31 UTCView event →

Interpretation

Explore clusters of M4.5+ events observed around significant earthquakes. These clusters are descriptive and are not presented as earthquake predictions. Historical small-earthquake detection varies through time. Long-term comparisons are most robust at higher magnitude thresholds.

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