Colombia Seismic Attenuation & MMI Mapper
USGS GMPE Engine
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Fault Zone Presets
Bucaramanga Nest (M7.1)
Romeral / Quindío (M6.2)
Eastern Frontal (M6.8)
Pacific Subduction (M8.2)
Seismic Event Parameters
Mesa de los Santos, Santander
Moment Magnitude (M
w
)
7.1
Hypocentral Depth (km)
120 km
Site Soil Condition
Hard Rock (V
s30
> 760 m/s)
Stiff Soil / Shallow Alluvium
Soft Lacustrine / Mud (Bogotá Sabana)
Epicentral PGA
0.38 g
Max MMI Intensity
VIII (Severe)
Energy (Joules)
2.8e+15
Radial Attenuation Profile (%g vs Distance)
Energy Release & TNT Equivalent
670 Kilotons TNT
Log
10
E = 15.45
M5.0 (0.2 kt)
1999 Armenia (M6.2)
1979 Tumaco (M8.2)
M8.5 (15 Mt)
Shaking Footprint & Population Impact
MMI Zone
PGA Threshold
Radius (km)
Est. Dept Exposure
Event M7.1 | Epicentral PGA: 0.38g | MMI VIII Radius: 28km
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