Cutremure importante in Italia

[GeoX1]

CELE MAI IMPORTANTE SEISME DIN ITALIA

Date Long. Lat. Mag. Death Location

1456-12-05 14.7 41.3 7.1 30000 SOUTHERN ITALY
1461-11-27 13.6 42.3 6.3 100 CENTRAL ITALY
1542-06-13 11.4 44.0 5.9 500 NORTHERN ITALY
1542-12-10 15.0 37.2 6.0 200 SICILY, ITALY
1561-07-31 15.4 40.6 6.0 100 SOUTHERN ITALY
1561-08-19 15.5 40.5 6.5 500 SOUTHERN ITALY
1570-11-17 11.6 44.8 5.5 70 NORTHERN ITALY
1584-09-10 12.0 43.9 5.8 196 CENTRAL ITALY
1601-09-08 8.5 46.8 ? many SWITZERLAND
1613-08-25 14.8 38.1 5.4 103 SICILY, ITALY
1618-08-25 9.5 46.3 ? 1200 SWITZERLAND
1624-03-18 11.9 44.7 5.4 50 NORTHERN ITALY
1626-04-04 16.5 38.9 6.0 37 SOUTHERN ITALY
1627-07-30 15.4 41.7 6.8 5000 SOUTHERN ITALY
1638-03-27 16.3 39.1 6.9 30000 SOUTHERN ITALY
1654-07-23 13.7 41.6 6.1 200 SOUTHERN ITALY
1659-11-05 16.3 38.7 6.4 2035 SOUTHERN ITALY
1661-03-22 11.9 44.0 6.8 400 NORTHERN ITALY
1672-04-14 12.6 43.9 5.7 200 CENTRAL ITALY
1688-04-11 13.0 44.4 5.8 50 ADRIATIC SEA
1688-06-05 14.6 41.3 6.6 10000 SOUTHERN ITALY
1693-01-09 15.0 37.1 6.2 many SICILY, ITALY
1693-01-11 15.0 37.1 7.4 54000 SICILY, ITALY
1694-09-08 15.4 40.9 6.8 4820 SOUTHERN I
1695-06-11 12.1 42.6 6.1 50 CENTRAL ITALY
1702-03-14 15.0 41.1 6.3 40 SOUTHERN ITALY
1703-02-02 13.3 42.4 6.7 many CENTRAL ITALY
1706-11-03 14.1 42.1 6.7 2400 CENTRAL ITALY
1726-09-01 13.4 38.1 5.7 250 SICILY, ITALY
1730-03-28 10.3 44.0 5.1 many NORTHERN ITALY
1732-03-27 14.8 40.9 ? 2000 SOUTHERN ITALY
1732-11-29 15.1 41.1 6.6 1942 SOUTHERN ITALY
1767-07-14 16.3 39.4 5.6 many SOUTHERN ITALY
1768-10-19 11.9 43.9 5.8 54 CENTRAL ITALY
1781-04-04 11.8 44.3 5.8 26 NORTHERN ITALY
1781-07-17 12.0 44.3 5.6 26 NORTHERN ITALY
1783-02-05 16.0 38.4 6.9 35000 SOUTHERN ITALY
1786-12-25 12.6 44.0 5.7 40 NORTHERN ITALY
1788-10-20 13.0 46.4 5.1 30 AUSTRIA-ITALY-SLOVENIA BORDER RG
1789-09-30 12.2 43.5 5.8 500 CENTRAL ITALY
1805-07-26 14.5 41.5 6.6 5573 SOUTHERN ITALY
1818-02-20 15.1 37.6 6.2 72 SICILY, ITALY
1819-05-26 11.8 42.5 ? many CENTRAL ITALY
1828-02-02 13.8 40.8 4.5 29 TYRRHENIAN SEA
1832-03-08 16.9 39.1 6.5 234 SOUTHERN ITALY
1835-10-12 16.3 39.3 5.9 115 SOUTHERN ITALY
1836-04-25 16.7 39.6 6.3 239 SOUTHERN ITALY
1846-08-14 10.6 43.5 5.9 60 CENTRAL ITALY
1854-02-12 16.3 39.3 6.1 472 SOUTHERN ITALY
1857-12-16 15.9 40.4 7.0 10939 SOUTHERN IT
1865-07-19 15.5 37.7 5.3 74 SICILY, ITALY
1870-10-04 16.3 39.2 6.1 117 SOUTHERN ITALY
1873-06-29 12.4 46.2 6.3 80 NORTHERN ITALY
1881-03-04 13.9 40.7 ? 126 TYRRHENIAN SEA
1881-03-16 13.9 40.7 ? 114 TYRRHENIAN SEA
1883-07-28 13.9 40.8 5.6 2333 TYRRHENIAN SEA
1887-02-23 8.0 43.9 6.4 635 LIGURIAN SEA
1894-11-16 15.9 38.3 6.2 101 SICILY, ITALY
1905-09-08 16.1 38.7 6.8 557 SOUTHERN ITALY
1907-10-23 16.0 38.1 6.0 167 SOUTHERN ITALY
1908-12-28 15.7 38.2 7.5 82000 SICILY, ITALY
1910-06-07 15.4 40.9 5.8 50 SOUTHERN ITALY
1914-05-08 15.1 37.7 5.5 69 SICILY, ITALY
1915-01-13 13.7 42.0 7.0 32610 CENTRAL ITALY
1919-06-29 11.5 44.0 6.3 100 NORTHERN ITALY
1920-09-07 10.3 44.3 6.3 171 NORTHERN ITALY
1930-07-23 15.4 41.1 6.7 1404 SOUTHERN ITALY
1968-01-15 13.0 37.8 6.5 231 SICILY, ITALY
1976-05-06 FRIULI 6,7
1980-11-23 15.3 40.9 6.9 2483 SOUTHERN ITALY

 

[GeoX1]

ACEST TOPIC ESTE DEDICAT EXCLUSIV CUTREMURELOR PUTERNICE DIN ITALIA.

 

[Sever]

Pe site-ul INCERC sub: http://www.incerc2004.ro/Files/Prezentare 5 06.07.09.pdf a fost postata prezentarea:
\"Cutremurul L’Aquila din 6 aprilie 2009 din regiunea Abruzzo, Italia. Investigatii de teren si cercetarea integrată a specificului miscarii seismice, efectelor asupra cladirilor si impactului socio-economic, in corelatie cu strategiile de refacere\", de Dr. ing. Emil-Sever Georgescu si Dr. ing. Claudiu Sorin Dragomir, INCERC Bucuresti, 06.07.2009.

Emil-Sever Georgescu

INCERC

 

[real321]

Un studiu foarte interesant. De remarcat acceleratiile foarte mari care cred ca provin nu din amplitudine mare ci din frecventa mare a oscilatiei. Astfel de oscilatii sunt foarte periculoase distrugand structura intima a materialului datorita unor tensiuni mari la nivel micro diferite de o incarcare statica normala. Betonul poate fi desprins si aruncat dintre armaturi asa cum ultrasunetele (care au frecvente mult mai mari) sunt folosite pentru a curata rugina de pe diverse obiecte. Oscilatiile mecanice de frecventa ridicata au o multitudine de aplicatii tocmai datorita efectului distructiv: detartraj cu ultrasunete in stomatologie, facoemulsificarea cristalinului in oftamologie, cavitatia ultrasonica pentru indepartarea tesutului adipos. Interesant este ca bazele teoriei sonicitatii au fost puse de savantul roman Gogu Constantinescu care este -printre multe altele - si inventatorul motorului sonic. Studiile sale au fost continuate de inginerul Ion Bazgan inventatorul \"forajului sonic\" care permite forarea la mare adancime.

Aceasta caracteristica este specifica seismelor de mica adancime. Curemurele subcrustale produse la adancimi mai mari de 70-80 de km cum sunt cele din Vrancea nu prezinta aceasta caracteristica, oscilatiile cu frecvente ridicate fiind mult atenuate (coeficientul de atenuare creste cu frecventa). Cred ca si la acest aspect se gandea dl Marmureanu cand spunea despre un posibil viitor cutremur \"cu cat mai adanc cu atat mai bine\". Poate gresesc dar cam asa vad eu lucrurile.

Multumim domnului Sever pentru informatiile interesante.