question: what is a seismograph used for measuring?
choices.text: Differences in speed hurricane speed occurs over a wide range Major effects eruptive products Richter magnitude 70-75 degrees Fahrenheit vertebrae or backbone
choices.label: A B C D E F G H
fact2: Richter magnitude is a measure of the size of the earthquake.
combinedfact: a seismograph is used for measuring Richter magnitude
formatted_question: what is a seismograph used for measuring? (A) Differences in speed (B) hurricane speed (C) occurs over a wide range (D) Major effects (E) eruptive products (F) Richter magnitude (G) 70-75 degrees Fahrenheit (H) vertebrae or backbone