Quake Pulse logoQuake Pulse
Sequence · 2014-07-21

M 6.9 · Observed seismic cluster · Fiji region

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 cluster12
M6+1
Analysis radius324 km
Observation window14 days
Largest secondary eventM 5.0
Quake Pulse

Sequence timeline

Within first 24 hours2
Within first 7 days8
Observed duration12.6 d
Gap from reference eventM 1.9
0 h12.6 d
Quake Pulse

Main-event impact

PAGER GREEN · Tsunami indicator · Very deep

61/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.9Fiji region615.4 km2014-07-21 14:54:41 UTCView event →
M 5.0135 km NW of Nuku‘alofa, Tonga208.1 km2014-07-22 14:11:15 UTCView event →
M 4.9256 km WNW of Haveluloto, Tonga462.9 km2014-07-23 00:27:00 UTCView event →
M 4.7Fiji region623.3 km2014-07-25 00:02:39 UTCView event →
M 4.6Fiji region620.7 km2014-07-26 21:07:20 UTCView event →
M 4.7Fiji region601.5 km2014-07-26 21:08:33 UTCView event →
M 4.8151 km NNW of Nuku‘alofa, Tonga141.7 km2014-07-28 13:35:44 UTCView event →
M 4.6Fiji region557.0 km2014-07-28 13:39:26 UTCView event →
M 4.5Fiji region610.7 km2014-07-29 18:47:31 UTCView event →
M 4.5240 km E of Levuka, Fiji576.4 km2014-07-31 20:14:56 UTCView event →
M 4.7222 km E of Levuka, Fiji573.8 km2014-08-01 13:35:58 UTCView event →
M 4.5Fiji region578.8 km2014-08-03 05:22:24 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.

Blog

Latest from the blog

Guides, explainers and practical reading to go beyond the live data.

View all articles →