It 's true . We had a small quake just a while ago . Technically , it was a magnitude 4.0 over in Alamo , but we felt a strong quick shake here . Where was I ?
According to the above context, choose the best option to answer the following question.
Question: Why are some residents startled in Alamo ?
Options:
A. There was a a high magnitude eruption .
B. There was a quake .
C. There was a strong wave near Alamo .
D. There was a large volcanic eruption .


B