Categoria | Ambiente, Cronaca, Primo Piano

Terremoto nel canale d’Otranto di 3,1 della scala Mercalli

Terremoto nel canale d’Otranto di 3,1 della scala Mercalli

Sisma di grado 3,1 della scala Mercalli a largo del canale d’Otranto, a 10 chilometri da Tricase. Ieri sera i sismografi d’Italia hanno vibrato fermando l’evento alle 20.36. La magnitudo è stata 3,1, con epicentro localizzato a 10 chilometri di profondità e con coordinate 40.034°N, 18.833°E.

Il terremoto è stato localizzato con i dati di 15 stazioni della Rete sismica nazionale dell’Ingv. La localizzazione epicentrale, riportata nelle immagini dell’Ingv, è quella rivista dagli operatori della sala sismica dell’ente e comunicata al dipartimento di Protezione civile subito dopo l’evento.

Il sisma non è stato percepito dalla popolazione: quasi nessuno se n’è accorto e, fortunatamente, non ha causato alcun danno.

Ora si sprecheranno le congetture dei catastrofisti, prendendo il terremoto per un segnale, dato che a Otranto i sismi sono assai rari e per lo più sono da ricondurre solo a onde sismiche provenienti dalle coste elleniche.

L’ultimo vero terremoto riportato nelle cronache, fu nel 1088 e con la sua straordinaria forza colpì tutta la Puglia. “In Otranto crollarono parecchie case e franò un angolo del Castello, opera di Roberto il Guiscardo”, questo quanto riportato all’epoca da Protopapa.

Pare, infatt,i che allora la magnitudo fu 5,3, con epicentro a 480 metri dalla superficie, forte quasi quanto quello dell’Aquila (5.9 scala Richter) ma, fortunatamente, con meno conseguenze.

Jenny De Cicco

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