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Well, now you can plot and plan all the devastation you ever wanted, if your preferred type of devastation is massive rocks slamming into the planet. You can get the entire profile of your preferred extinction level event via space rock just by punching in a few numbers with the "Earth Impact Effects Program (now with twice as much flaming death!)" just by clicking here
Happy hunting.
Your Inputs:
Distance from Impact: 400.00 km = 248.40 miles
Projectile Diameter: 1609.34 m = 5278.64 ft = 1.00 miles
Projectile Density: 8000 kg/m3
Impact Velocity: 50.00 km/s = 31.05 miles/s
Impact Angle: 90 degrees
Target Density: 2500 kg/m3
Target Type: Sedimentary Rock
Energy:
Energy before atmospheric entry: 2.18 x 1022 Joules = 5.21 x 106 MegaTons TNT
The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 1.6 x 107years
Major Global Changes:
The Earth is not strongly disturbed by the impact and loses negligible mass.
The impact does not make a noticeable change in the Earth's rotation period or the tilt of its axis.
The impact does not shift the Earth's orbit noticeably.
Crater Dimensions:
What does this mean?
Transient Crater Diameter: 38.3 km = 23.8 miles
Transient Crater Depth: 13.6 km = 8.42 miles
Final Crater Diameter: 61.9 km = 38.5 miles
Final Crater Depth: 1.02 km = 0.636 miles
The crater formed is a complex crater.
The volume of the target melted or vaporized is 194 km3 = 46.4 miles3
Roughly half the melt remains in the crater , where its average thickness is 168 meters = 550 feet
Thermal Radiation:
What does this mean?
Time for maximum radiation: 1.12 seconds after impact
Visible fireball radius: 43.3 km = 26.9 miles
The fireball appears 24.6 times larger than the sun
Thermal Exposure: 4.65 x 106 Joules/m2
Duration of Irradiation: 72.5 seconds
Radiant flux (relative to the sun): 64
Effects of Thermal Radiation:
Much of the body suffers second degree burns
Newspaper ignites
Deciduous trees ignite
Seismic Effects:
What does this mean?
The major seismic shaking will arrive at approximately 80 seconds.
Richter Scale Magnitude: 9.1
Mercalli Scale Intensity at a distance of 400 km:
VII. Damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken.
VIII. Damage slight in specially designed structures; considerable damage in ordinary substantial buildings with partial collapse. Damage great in poorly built structures. Fall of chimneys, factory stacks, columns, monuments, walls. Heavy furniture overturned.
Ejecta:
What does this mean?
The ejecta will arrive approximately 296 seconds after the impact.
Average Ejecta Thickness: 30.1 cm = 11.9 inches
Mean Fragment Diameter: 1.05 cm = 0.413 inches
Air Blast:
What does this mean?
The air blast will arrive at approximately 1210 seconds.
Peak Overpressure: 118000 Pa = 1.18 bars = 16.8 psi
Max wind velocity: 197 m/s = 440 mph
Sound Intensity: 101 dB (May cause ear pain)
Damage Description:
Multistory wall-bearing buildings will collapse.
Wood frame buildings will almost completely collapse.
Highway truss bridges will suffer substantial distortion of bracing.
Glass windows will shatter.
Up to 90 percent of trees blown down; remainder stripped of branches and leaves.
Happy hunting.
Your Inputs:
Distance from Impact: 400.00 km = 248.40 miles
Projectile Diameter: 1609.34 m = 5278.64 ft = 1.00 miles
Projectile Density: 8000 kg/m3
Impact Velocity: 50.00 km/s = 31.05 miles/s
Impact Angle: 90 degrees
Target Density: 2500 kg/m3
Target Type: Sedimentary Rock
Energy:
Energy before atmospheric entry: 2.18 x 1022 Joules = 5.21 x 106 MegaTons TNT
The average interval between impacts of this size somewhere on Earth during the last 4 billion years is 1.6 x 107years
Major Global Changes:
The Earth is not strongly disturbed by the impact and loses negligible mass.
The impact does not make a noticeable change in the Earth's rotation period or the tilt of its axis.
The impact does not shift the Earth's orbit noticeably.
Crater Dimensions:
What does this mean?
Transient Crater Diameter: 38.3 km = 23.8 miles
Transient Crater Depth: 13.6 km = 8.42 miles
Final Crater Diameter: 61.9 km = 38.5 miles
Final Crater Depth: 1.02 km = 0.636 miles
The crater formed is a complex crater.
The volume of the target melted or vaporized is 194 km3 = 46.4 miles3
Roughly half the melt remains in the crater , where its average thickness is 168 meters = 550 feet
Thermal Radiation:
What does this mean?
Time for maximum radiation: 1.12 seconds after impact
Visible fireball radius: 43.3 km = 26.9 miles
The fireball appears 24.6 times larger than the sun
Thermal Exposure: 4.65 x 106 Joules/m2
Duration of Irradiation: 72.5 seconds
Radiant flux (relative to the sun): 64
Effects of Thermal Radiation:
Much of the body suffers second degree burns
Newspaper ignites
Deciduous trees ignite
Seismic Effects:
What does this mean?
The major seismic shaking will arrive at approximately 80 seconds.
Richter Scale Magnitude: 9.1
Mercalli Scale Intensity at a distance of 400 km:
VII. Damage negligible in buildings of good design and construction; slight to moderate in well-built ordinary structures; considerable damage in poorly built or badly designed structures; some chimneys broken.
VIII. Damage slight in specially designed structures; considerable damage in ordinary substantial buildings with partial collapse. Damage great in poorly built structures. Fall of chimneys, factory stacks, columns, monuments, walls. Heavy furniture overturned.
Ejecta:
What does this mean?
The ejecta will arrive approximately 296 seconds after the impact.
Average Ejecta Thickness: 30.1 cm = 11.9 inches
Mean Fragment Diameter: 1.05 cm = 0.413 inches
Air Blast:
What does this mean?
The air blast will arrive at approximately 1210 seconds.
Peak Overpressure: 118000 Pa = 1.18 bars = 16.8 psi
Max wind velocity: 197 m/s = 440 mph
Sound Intensity: 101 dB (May cause ear pain)
Damage Description:
Multistory wall-bearing buildings will collapse.
Wood frame buildings will almost completely collapse.
Highway truss bridges will suffer substantial distortion of bracing.
Glass windows will shatter.
Up to 90 percent of trees blown down; remainder stripped of branches and leaves.