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Your report helps USGS map how strongly this earthquake was felt in your area.
Quick report
Urgent earthquake reported
USGS LIVE FEED5.0
Significant magnitude
La Tronosa, Panama
Tectonic earthquake
Nearby volcano: Valle, El · ~81 mi · proximity only
3h ago 10 km deep
Aftershock activity
17 nearby events in this sequence
This quake is event 13 of 17.
17 total
Main event
M7.7
Aftershocks
16
Strongest aftershock
M5.8
Nearby USGS events grouped by distance and time. Sequence labels are contextual, not a formal USGS aftershock determination.
Event intelligence
What we know right now
Earthquake Alert separates measured facts, model estimates and public reports so magnitude is not confused with shaking or impact.
ObservedEstimatedReportedForecast
Magnitude + depth
M5.0 · 10 km
Significant magnitude event. Location: La Tronosa, Panama.
Instrumental shaking
Not felt
USGS MMI 0.0. This describes shaking intensity, not earthquake magnitude.
Public experience
Not felt
Community intensity CDI 0.0 from felt reports.
Impact context
No impact alert
Magnitude alone does not determine damage or impact.
Scientific products attached
No advanced USGS product is attached yet. Significant-event products often appear after the preliminary event record.
Official hazard status
No correlated tsunami alert
No active correlated tsunami warning/advisory/watch is attached to this event in Earthquake Alert.
Stress Zone · Highly active
Local seismic activity context
Oct 9, 11:39 PM
24h activity
15
M1.5+ · 50 mi
6h burst
15
nearby events
Strongest 24h
M7.7
inside zone
15 M1.5+ events within 50 miles in 24 hours
Nearby seismic activity is concentrated above the recent local rate. This can occur in aftershock sequences, earthquake swarms, or short-lived regional clustering.
What Stress Zone is: Stress Zone is an Earthquake Alert activity-context label. It does not measure tectonic stress, identify a fault as ready to rupture, or predict a larger earthquake.
What experts would say
Plain-language interpretation of current USGS data — not a direct expert quote or earthquake prediction.
Local earthquake activity is elevated compared with the recent catalog around this event. Clustering alone does not show that a larger earthquake is imminent.
This magnitude is large enough to be felt across a broad area. Actual impact depends more on shaking intensity, depth, distance and building vulnerability than magnitude alone.
Felt reports
0
USGS Did You Feel It? reports
Reported intensity
Not felt
CDI 0.0 · community reports
Instrumental intensity
Not felt
MMI 0.0 · estimated shaking
USGS status
reviewed
Reviewed by USGS
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Official source
Earthquake Alert organizes authoritative seismic and hazard information for rapid understanding. Always follow official emergency guidance for safety decisions.
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