Sequence · 2005-03-21

M 6.9 · Observed seismic cluster · 67 km ENE of Joaquín V. González, Argentina

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 cluster6
M6+2
Analysis radius324 km
Observation window14 days
Largest secondary eventM 6.4
Quake Pulse

Sequence timeline

Within first 24 hours2
Within first 7 days2
Observed duration10.4 d
Gap from reference eventM 0.5
0 h10.4 d
Quake Pulse

Main-event impact

Very deep

45/100
Impact and context →

M4.5+ events in cluster

MagnitudeLocationDepthTime
M 6.967 km ENE of Joaquín V. González, Argentina579.1 km2005-03-21 12:23:54 UTCView event →
M 6.459 km ESE of Apolinario Saravia, Argentina570.1 km2005-03-21 12:43:12 UTCView event →
M 5.111 km NNW of Yuto, Argentina1.7 km2005-03-31 16:33:35 UTCView event →
M 4.915 km WNW of Yuto, Argentina10.0 km2005-03-31 21:50:51 UTCView event →
M 5.110 km NNW of Yuto, Argentina1.0 km2005-03-31 21:52:30 UTCView event →
M 4.711 km NNW of Caimancito, Argentina10.0 km2005-03-31 22:22:09 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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