News You Can Bruise for 2004 April 19

PBS used to have a morbid web page that would show you the blast radii of various types of nuclear weapon superimposed over a map of your hometown, provided by the aptly-named MapBlast. Now it's just a bunch of static HTML with descriptions of how you really don't want to be anywhere near a nuclear blast. The sample map image is the only thing thing that proves I wasn't hallucinating it all.

Kris figured they took down the interactive portion because of 9/11, which makes total sense. Previously, terrorists would only have had to obtain a nuclear device if they wanted to blow up a city. Now, they have to obtain a nuclear device and a map and compass! But what about other methods of horrible destruction, as yet out of human control? Are there convenient, non-terror-enabling online forms that show you how dead you will be? I decided to do some searching and find out.

• Earthquake: You can find out when you felt the tremors from past earthquakes, but that doesn't do you much good. However, see Asteroid Strike below. Update!: If you live in the SF Bay Area, Adam Parrish has a deal for you! Maps and everything!.
• Volcano Eruption: All I could find was this distance calculator to volcanoes in the Pacific Northwest. If you don't mind doing a little web browsing, you can locate volcanoes in your area at this Smithsonian site or this USGS site, which is less comprehensive but has maps and other volcano freebies.
• Tsunami: Nothing I could find.
• Asteroid Strike: Here's what I'm talking about. Takes projectile characteristics and calculates all types of damage: crater ejecta, shock wave, thermal radiation, etc.

  Plus, since an asteroid strike causes an earthquake, you can work out a rough correspondence of impact criteria to Richter scale magnitude and simulate any kind of earthquake that way.

  My only complaint: With the right asteroid you can create an impact crater bigger than the earth. Indeed, you can specify an asteroid much bigger than the earth and it doesn't, as it should, treat the collision as a minor inconvenience to the asteroid.

• Tornado: Well, if you know the windspeed of a particular tornado, you can plug it in here and it will give you an index on the meaningless-except-to-tornado-geeks "Fujita Scale". But it will also give you wiseacre Midwestern comments, a decent proxy for "How dead will you be?" (Eg. "Too late to head for the cellar!")
• Flood: Well, this is pretty interesting. It's not a calculator per se, but a tutorial and script for simulating flooding in a GIS system. The reason I say it's interesting was I've been wondering how to do the same thing on a grand scale: see what the world would look like if the sea level were to rise or fall.
• Godzilla attack: Nothing. Not even a damage table you can roll on.

Well, I think that covers most of the SimCity disasters. Maybe the raw power of a nuclear explosion or an asteroid strike are what let you make a calculator that doesn't get hung up on the topography of the landscape or the size of a particular volcano.