Still standing

100%—

—seed —

ground0.00 g

worst storey0.00 g

building period— s

Steel budget

4braces

click a bay to brace it

Proximity to failure

holdingabout to tear

click brace a bay (between waves) space start / next wave H hide all UI N day / night M mute R restart esc change building ←→ orbit F3 stats ` tweaks

SHAKETABLE

Choose a specimen

Three earthquakes, each stronger than the last and each shaking at a different speed. Between them you get a stress map and a few steel braces.

Every building has a speed of its own — its period. Ground that shakes near that speed is the dangerous kind, so a tall flexible tower and a short stiff block fear completely different earthquakes. The dots show which of the three waves is tuned to hurt each one.