Question

a sudden release of energy occurs where two plates slide past each other along a transform boundary. seismometers record shaking for 25 seconds. which event is being described? seafloor spreading earthquake volcanic island building mountain formation

Explanation:

The description matches an earthquake: it involves sudden energy release at transform plate boundaries, and seismometers record the resulting shaking. The other options do not fit: seafloor spreading happens at divergent boundaries, volcanic island building is linked to volcanic activity at oceanic boundaries, and mountain formation occurs at convergent boundaries.

Answer:

Earthquake