The 68th observance of the first use of a nuclear device in war is on Tuesday August 6th.
You can use this interactive Sim to estimate the effects of "Little Boy" (15kt) on your local area.
NUKEMAP2 by Alex Wellerstein
- There are presets. If your town is not on the list you can drag the map pointer to your chosen location.
- Click on the Advanced Options arrow to open it for more options.
- If you don't want to log your anonymous usage data, click on the check box at the bottom aside the Auto-Zoom check box.
- Once you click on the "Detonate" button it takes several seconds to calculate the estimated fatalities and estimated injuries.
There is also a 3D Sim. It can be reached by this link or at the top right of the 2D map: NUKEMAP3D by Alex Wellerstein
Settings are similar, one difference I found was in placing the location. Instead of dragging the pointer you had to drag google earth to your chosen location, then click on the "Place Target" button.