Selected Labs and Activities -- Earthquakes, Volcanoes, and Plate Tectonics
From New York Science Teacher: Earthquakes, Volcanoes, and Plate Tectonics
From Charles Burrows (East Ramapo CSD):
The Dynamic Crust
From a DLESE search
Virtual Earthquake 
Planet Earth Diary
Musical Plates 
Plotting Earthquake Epicenters
Volcanoes (USGS Learning Web)
Deep Sea Volcanoes and Vents
The World's Deadliest Volcanoes
Plate Tectonics
On the Move: Continental Drift and Plate Tectonics
Earth: Plates on the Move
Other
Earthquakes and the Web
Plate Tectonic Animations
IRIS Seismic Monitor
ESRT Inferred Properties of Earth's Interior
Notes: 
1. These selected labs and activities have been created by different teachers, so the formats of the materials will differ. 
2. Suggestions for additional labs and activities should be sent to <michael@earth2class.org>