Earthquake — Portugal: Ribatejo, Benavente

When

23 Apr 1909

Kind

Earthquake

Magnitude

6.6

Where

Portugal

Coordinates

38.90° N, 8.80° W

Deaths

30

Intensity mmi

10

Earthquake affecting Portugal

The 1909 Benavente earthquake occurred on 23 April at 17:39 GMT with an epicenter in the Lisbon region of Portugal. The earthquake had an estimated moment magnitude of 6.0 and had maximum Mercalli intensity of IX (Violent). Beneath the Lower Tagus Valley, where the earthquake occurred, is a system of normal faults that were reactivated during the Eocene as reverse faults.

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• NCEI significant earthquakes, tsunamis and volcanic eruptionsNOAA National Centers for Environmental InformationPublic domainSource page
• Wikipedia year pages (English), by Wikipedia contributorsWikipedia contributors · names it “In Portugal, a magnitude 6.0 earthquake strikes near Lisbon, killing at least 60 people”Creative Commons Attribution-ShareAlike 4.0Source page