205787-2 environmental risk assessment for natural resources management natural hazard
TRANSCRIPT
205787-2Environmental
Risk Assessment for Natural Resources
ManagementNatural Hazard
Natural Hazard•Earth Quake•Landslide /Slump•Volcanic Eruption•Flooding •Water shortage•Abruptly climatic change : too hot/too cold/forest fire
Earthquake
Seismic
Stationnetwor
k in
Thailand.
Earthquake detector in analog system
Seismic station in
Chiang
Mai
Mercalli scaleMercalli scale
Risk of Earthquake
People injured and die homeless Building collapsed Dam damaged Transportation damaged Gas leakage and explosion Produce Tsunami
EARTHQUAKE DISASTER SETTING
• MYANMAR is a portion of the ALPINE-HIMALAYAN earthquake zone
• MYANMAR experienced some severe and serious earthquakes.
• During last (200)years, MYANMAR has been affected by nearly (40)Major Earthquakes of more than (5) Mercalli scale
MAIN EARTHQUAKE BELTS
*The main Earthquake belts were classified by G.P GORSHKOV(1961)
(a) Westen Yoma (b) Central Basin Belt (c ) Sagaing Belt (d) Shan Boundary Belt (e) Tenasserim Belt
Seismotectonic Features of Myanmar
Occurrence time 21.5.1912, 3 p.mAffected Area Mandalay, Shwebo,
Sagaing, Toung gnu,Pegu(125,000 sq-miles)
Intensity 7 RichterOccurrence time 23.5.1912, 9 a.mAffected Area Mandalay, Maymyo,
Taunggyi, Kyaukse(375000 sq-miles)
Intensity 8 Richter Damage A number of brick
buildings were cracked
The Mandalay Earthquake
Occurrence time 5.5.1930, 8: 18 p.mAffected Area Pegu, Yangon,Kyaukpyu
Magwe, Moemate(220000 sq-mile)
Intensity 7.3 Richter Damage Extensive damage
ShweMaw Daw Pagoda wasdamaged500 in Pegu and 50 peoplesin Yangon were killed, 2000-injuried,6 mil-kyats lost
The Pegu Earthquake
Occurrence time 4.12.1930, 10:20p.mAffected Area Pyu, Yangon,
Nyaunglaybin,Taungnu
Intensity - Damage 36 peoples were killed and
many were injured, manybuildings were destroyed
The Pyu Earthquake
Occurrence time 16.7.56, 9:40 p.mAffected Area Saging, Mnadalay, AvaIntensity 6.5 Richter Damage 30 peoples were killed, many
were injuredExtensive damage tobuildings
The Sagaing Earthquake
Occurrence time 8.7.1975,6.35pmAffected Area Bagan,Pakauku,chaung,
Naung oo,Myatkyina,Pegu,Intensity 8 Richter Damage 80%of ancient pagodas were
damage-collapsed some hu gecracks
The Bagan Earthquake
Date Place Magnitude Dead Damage
24.8.1858 Pyay 8-9(Mercalli)
- Severe damage, Island drowned
23.5.1912 Mandalay 8(Richter) - Severe damage to buildings
19.8.1919 Yangon - - Shwedagon umbrella failed
5.5.1930 Yangon 8(Mercalli) 50 Severe damage, buildingscollapsed
5.5.1930 Pegu 7.3(Richter) 500 Extensive damage. Fire
4.12.1930 Pyu 9 (Richter) 36 Severe damage, buildingscollapsed
Significant regional earthquake of Myanmar
Date Place Magnitude Dead Damage
18.1.1950 Karmai 9Mercalli
- Landslides,Big soil cracks,
23.8.1950 Putao - - After shock of Arthan,Change direction of riverway.
16.7.1956 Sagaing 6.5Richter
30 Extensive damage,all brickBuilding damaged.
9.9.1970 Yangon 6-7Mercalli
- Severe damaged to brickBuildings.Shwedagon damaged.
8.7.1975 Bagan 6.8Richter
15 Extensive damaged toAncient pagodas.
30.9.1978 Dedaye 5.7Richter
3 Severe damaged to buildings
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Date Place Magnitude Dead Damage
18.1.1950 Karmai 9Mercalli
- Landslides,Big soil cracks,
23.8.1950 Putao - - After shock of Arthan,Change direction of riverway.
16.7.1956 Sagaing 6.5Richter
30 Extensive damage,all brickBuilding damaged.
9.9.1970 Yangon 6-7Mercalli
- Severe damaged to brickBuildings.Shwedagon damaged.
8.7.1975 Bagan 6.8Richter
15 Extensive damaged toAncient pagodas.
30.9.1978 Dedaye 5.7Richter
3 Severe damaged to buildings
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Date Place Magnitude Dead Damage
7.8.1988 Khanni 6.2Richter
- Some damaged
1.3.1989 Mandalay 6.0Richter
- Some damaged
5.1.1991 Tagaung 7.1Richter
2 Many damaged,buildings,Pagodas,fields,
28.10.92 Taungoo 5.4Richter
- Some damaged.
11.1.94 Myatkyina
6.6Richter
- Some damaged
21.9.95 Sagaing 5.1Richter
- Some damaged
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