205787-2 Environmental Risk Assessment for Natural Resources Management Natural Hazard.
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205787-2Environmental
Risk Assessment for Natural Resources
ManagementNatural Hazard
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Natural Hazard•Earth Quake•Landslide /Slump•Volcanic Eruption•Flooding •Water shortage•Abruptly climatic change : too hot/too cold/forest fire
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Earthquake
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Seismic
Stationnetwor
k in
Thailand.
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Earthquake detector in analog system
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Seismic station in
Chiang
Mai
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Mercalli scaleMercalli scale
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Risk of Earthquake
People injured and die homeless Building collapsed Dam damaged Transportation damaged Gas leakage and explosion Produce Tsunami
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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
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Seismotectonic Features of Myanmar
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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
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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
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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
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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
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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
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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
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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
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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