historical landslides and floods SICI: an information system on CUNY - John Jay College of Criminal Justice URBAN HAZARDS FORUM URBAN HAZARDS FORUM New York, 22-24 January 2002 S I C I S I C I an information system on historical an information system on historical landslides and floods in Italy landslides and floods in Italy GNDCI Fausto Guzzetti (F.Guzzetti@irpi.pg.cnr.it) CNR IRPI, Perugia
historical landslides and floods SICI: an information system on OUTLINE Extent of landslides and floods in Italy Extent of landslides and floods in Italy The AVI Project The AVI Project The SICI information system The SICI information system Applications Applications GNDCI Conclusions Conclusions
historical landslides and floods SICI: an information system on SOCIAL AND ECONOMIC IMPACT SOCIAL AND ECONOMIC IMPACT I n the 20 th century: 10,000 casualties 350,000 homeless people Thousands of houses destroyed or damaged Thousands of bridges destroyed or damaged Hundreds of kilometres of roads GNDCI and railways damaged Florence, a painting by Cimabue damaged by the November 1966 flood of the Arno River I n the 1990s, floods and landslides have killed more than 300 people.
historical landslides and floods SICI: an information system on MAJOR CATASTROPHIC EVENTS MAJOR CATASTROPHIC EVENTS Veneto, 18 November 1951 Ancona, 13 December 1982 100 dead or missing people 342 hectares of urban area 170,000 homeless people 280 damaged buildings 100 km 2 inundated 3,361 evacuated people 52 bridges destroyed Stava, 19 July 1985 Salerno, 25-26 October 1954 269 dead and missing people 205 dead Valtellina, 28 July 1987 92 missing people 27 dead Vajont, 9 October 1963 19,500 evacuated people 1917 dead Piedmont, 2-6 November 1994 2 villages and the town of Longarone destroyed 70 dead 86 injured people Florence, 3-4 November 1966 35 dead Campania, 5 May 1998 GNDCI 18,000 unemployed 153 dead hundreds homeless people severe impact on the cultural and historical heritage Piedmont, 2-6 October 2000 Genoa, 7-8 October 1970 70 dead 86 injured people 25 dead 500 homeless people
historical landslides and floods SICI: an information system on THE AVI PROJECT THE AVI PROJECT I n 1989 the Minister of Civil Protection asked the National Research Council, Group for Geological and Hydrological Disasters Prevention, to complete a inventory of the areas historically affected by landslides and floods in I taly. To respond to the Minister request, in 1990-92 we designed and completed a bibliographical and archive inventory of historical information on landslides and floods in I taly. GNDCI The inventory became known as the “AVI project”. http:/ / avi.gndci.pg.cnr.it
historical landslides and floods SICI: an information system on THE AVI PROJECT RESULTS THE AVI PROJECT RESULTS Through the analysis of 500,000 newspapers, 1500 scientific reports, and interviews to 300 experts, we collected 22,700 information on landslides and 7,800 information on floods. 23,600 landslide events at 15,900 sites, and 25,000 flooding events at 13,400 sites were identified and mapped at 1:100,000 scale. GNDCI Of the 8103 I talian municipalities, 4,528 (55% ) were affected at least once by a landslide and 4,200 by a flood (52% ).
historical landslides and floods SICI: an information system on SICI: THE INFORMATION SYSTEM ON SICI: THE INFORMATION SYSTEM ON HISTORICAL LANDSLIDES AND FLOODS HISTORICAL LANDSLIDES AND FLOODS SICI, an Italian acronym for “ Sistema Informativo sulle Catastrofi Idrogeologiche” , Information System on Geo- Hydrological Catastrophes, is a collection of databases containing historical data and bibliographical information on landslides and floods in Italy. GNDCI S I C I
historical landslides and floods SICI: an information system on SICI: THE INFORMATION SYSTEM ON SICI: THE INFORMATION SYSTEM ON HISTORICAL LANDSLIDES AND FLOODS HISTORICAL LANDSLIDES AND FLOODS http://sici.gndci.pg.cnr.it http://sici.gndci.pg.cnr.it LOMBARDY AVI S I C I REFERENCES GNDCI GIANO ABPO
historical landslides and floods SICI: an information system on APPLICATIONS OF HISTORICAL DATA APPLICATIONS OF HISTORICAL DATA Frequency of inundations Frequency of inundations Landslide risk Landslide risk Frequency/Magnitude relation of Frequency/Magnitude relation of catastrophic events catastrophic events GNDCI
historical landslides and floods SICI: an information system on FREQUENCY OF FLOODING EVENTS FREQUENCY OF FLOODING EVENTS 180 1900 - 1900 -1998 1998 1900 -1998 160 Number of time the site was inundated 12,991 sites 12,991 sites 140 23,426 events 23,426 events 120 100 80 157 60 GNDCI 40 20 0 1 10 100 1000 10000 Number of sites
historical landslides and floods SICI: an information system on FREQUENCY OF FLOODING EVENTS FREQUENCY OF FLOODING EVENTS 10 10 1900 - 1900 -1998 1998 1900 -1998 Annual frequency of floods (Y) . Annual frequency of floods (Y) . 12,991 sites 12,991 sites 23,426 events 23,426 events 1 1 -0.42 -0.42 y = 0.45 x y = 0.45 x 0.1 0.1 GNDCI 0.01 0.01 1 10 100 1000 10000 1 10 100 1000 10000 Number of sites affected by floods (N) Number of sites affected by floods (N)
historical landslides and floods SICI: an information system on LANDSLI DE CASUALTI ES I N I TALY LANDSLI DE CASUALTI ES I N I TALY (1900- -1999) 1999) (1900 1900 - -1999 1999 1900 1900 -1999 7,799 casualties 7,799 casualties 5,831 deaths 5,831 deaths 108 missing persons 108 missing persons 1,860 injured people 1,860 injured people GNDCI An average of 59.4 deaths or missing An average of 59.4 deaths or missing persons per year persons per year
historical landslides and floods SICI: an information system on LANDSLI DE RI SK I N I TALY LANDSLI DE RI SK I N I TALY 100 100 Annual frequency of events with N or more dead Annual frequency of events with N or more dead Years 1410-1999 Years 1410-1999 Years 1800-1999 Years 1800-1999 10 10 Years 1900-1999 Years 1900-1999 Years 1950-1999 Years 1950-1999 or missing people (F) or missing people (F) 1 1 -0.85 y = 5.6x 0.1 0.1 GNDCI 0.01 0.01 0.001 0.001 1 10 100 1000 10000 1 10 100 1000 10000 Number of dead or missing people (N) Number of dead or missing people (N)
historical landslides and floods SICI: an information system on LANDSLI DE RI SK I N I TALY LANDSLI DE RI SK I N I TALY 100 100 100 100 Annual frequency of events with N or more dead Annual frequency of events with N or more dead Annual frequency of events with N or more dead or Annual frequency of events with N or more dead or Annual frequency of events with N or more dead Years 1410-1999 Years 1410-1999 I TALY Hong Kong Years 1800-1999 1950-1999 Years 1800-1999 1948-1996 10 10 10 10 1900-1999 Years 1900-1999 Years 1900-1999 Years 1950-1999 Years 1950-1999 or missing people (F) or missing people (F) or missing people (F) missing people (F) missing people (F) Japan 1 1 1 1 China 1900-1987 0.1 0.1 0.1 0.1 GNDCI 0.01 0.01 0.01 0.01 Canada 1840-1996 The Alps 1800-1974 0.001 0.001 0.001 0.001 1 10 100 1000 10000 1 10 100 1000 10000 1 10 100 1000 10000 1 10 100 1000 10000 Number of dead or missing people (N) Number of dead or missing people (N) Number of dead or missing people (N) Number of dead or missing people (N) Number of dead or missing people (N)
historical landslides and floods SICI: an information system on LANDSLIDE MORTALITY RATES IN ITALY LANDSLIDE MORTALITY RATES IN ITALY 1945 - 1990 1990 - 1999 Workplace accidents Flood Road accidents Cancer Earthquake Heart diseases Landslide Max. Landslides Max. GNDCI Average Average 0.01 0.1 1 10 100 1000 0 0.05 0.1 0.15 0.2 Mortality Rate (log scale) Mortality Rate
historical landslides and floods SICI: an information system on FREQUENCY- -MAGNITUDE OF MAGNITUDE OF FREQUENCY EVENTS WITH CONSEQUENCES EVENTS WITH CONSEQUENCES 100 100 Annual frequency of days with N or more events Annual frequency of days with N or more events 1900 - -1998 1998 1900 1900 -1998 1 day 1 day 15,128 landslides 15,128 landslides 3 days 3 days 23,426 foods 23,426 foods 10 10 5 days 5 days 7 days 7 days 1 1 0.1 0.1 GNDCI -1.60 y = 360 x 0.01 0.01 1 10 100 1000 10000 1 10 100 1000 10000 Magnitude (number of landslides or floods, N) Magnitude (number of landslides or floods, N)
Recommend
More recommend
