Magnitude 5.5 quake off Sicily triggers evacuations, brief tsunami alert
A swarm of earthquakes off Sicily's coast peaked at magnitude 5.5 on Friday, with schools evacuated in Palermo and a tsunami alert lifted within an hour.
A strong earthquake measuring magnitude 5.5 struck under the Tyrrhenian Sea north of Sicily on Friday, the strongest in a swarm of tremors that sent people into the streets and prompted the evacuation of schools and offices in Palermo, Italy's National Institute of Geophysics and Volcanology (INGV) said.
The quake, initially estimated at magnitude 5.0 before being revised, struck at 12:19 local time at a depth of about nine kilometres, with its epicentre roughly 63km from Leni on the Aeolian island of Salina and about 50km from Marsili, a submarine volcano, according to Il Messaggero. It was felt as far away as Catania, Reggio Calabria and Catanzaro.
Italy's national tsunami alert system issued an orange alert, the second of three levels, covering Palermo, 18 other municipalities in its province and six in Messina's province, Il Post reported. The alert, which indicated an expected wave run-up of less than a metre, was lifted after about an hour; INGV said no sea-level changes or tsunami were detected.
Palermo mayor Roberto Lagalla confirmed there were no casualties and asked people not to go out on boats. About 300 students and teachers from a secondary school gathered in the square in front of Palermo's cathedral after evacuating, while a school was also evacuated in Partanna Mondello and the courthouse was evacuated in Trapani, Mediafax reported.
A rock face collapsed behind a village on the island of Filicudi, and minor landslides were reported on Alicudi and in western Lipari, without significant damage, according to Mediafax. The tremors began on the night of 20 October, with several smaller quakes, including ones of magnitude 4.3 and 3.6, recorded in the hour before the strongest shock, and further quakes of magnitude 3.4 and 3.9 recorded overnight and into Friday morning.
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What we know
- Official · INGV The strongest earthquake in a swarm off northern Sicily measured magnitude 5.5, revised up from an initial estimate of 5.0, INGV said.
- 1 outlet · Mediafax, WP Wiadomości An orange tsunami alert covering Palermo and nearby municipalities was lifted after about an hour with no sea-level changes detected.
- 2+ outlets · La Stampa, Il Fatto Quotidiano Schools and offices were evacuated in Palermo, Trapani and the Aeolian Islands as a precaution.
- 1 outlet · Mediafax No casualties were reported; a rock collapse and minor landslides were reported on nearby islands without significant damage.
How each fact is established: Verified checked by an ECTV editorOfficial stated by an official body2+ outlets reported independently by two or more news organisations1 outlet reported by a single news organisation so farUnconfirmed claimed or reportedHow we label facts
Why it matters for Europe
The Aeolian Islands sit in one of the Mediterranean's most seismically active zones, where tectonic and volcanic systems interact, and earthquake swarms there have preceded tsunami alerts for coastal Sicily before. Friday's sequence, following several tremors above magnitude 4 since Thursday, kept emergency services on alert across a stretch of coast that includes Palermo, one of Italy's largest cities.
Sources
Reported by 13 reports from 13 independent outlets in 9 countries.
- La Stampa: Terremoto a Palermo, forte scossa di magnitudo 5.0: gente in strada, scuole e uffici evacuati
- Adnkronos: Terremoto in Sicilia, tripla scossa nel mar Tirreno Meridionale: avvertita a Palermo e sulla costa
- Il Post: C’è stata una serie di scosse di terremoto nel mare a nord della Sicilia, sono state avvertite anche a Palermo
- TGCom24: Scosse di terremoto nel Tirreno Meridionale, la più alta di magnitudo 5 avvertita anche a Palermo
- Il Fatto Quotidiano: Dieci scosse di terremoto al largo di Palermo: la più forte di magnitudo 5.5. Evacuate le scuole
Source balance
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Questions and answers
- How strong was the Palermo earthquake?
- The strongest tremor measured magnitude 5.5, revised up from an initial 5.0 estimate, INGV said.
- Was a tsunami warning issued?
- Yes, an orange alert covering Palermo and nearby municipalities, lifted after about an hour when no sea-level changes were detected.
- Were there any casualties or major damage?
- No casualties were reported, Palermo's mayor said; a rock collapse and minor landslides were reported on nearby islands without significant damage.
This article was written with AI assistance from 15 verified reports and checked under the ECTV editorial policy. Spotted an error? Request a correction.