Earthquakes
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251 free Earthquakes trivia questions with answers — science & nature quiz, new questions added Oct 2026.
12 free Earthquakes trivia questions with answers. Earthquakes are one of Earth's most powerful natural phenomena, shaping our planet's geology and affecting millions of people worldwide. Test your understanding of seismic activity, plate tectonics, and earthquake science with this engaging 251-question trivia quiz. See how well you know the forces beneath our feet!
30 of 251 questions with answers and explanations. Play the quiz
Q 01Which scale replaced the Richter scale as the standard for measuring big earthquakes?
Moment magnitude
Moment magnitude is based on how far a fault slips and over what area, so unlike older scales it doesn't saturate for great quakes.
Q 02What is the geological term for the point within the Earth where an earthquake rupture first occurs?
Hypocenter
The hypocenter, also called the focus, is the point where the rupture starts; plotting many hypocentres maps a fault plane underground.
Q 03Which type of plate boundary is most commonly associated with the deepest and most powerful earthquakes?
Convergent
Convergent boundaries, where one plate subducts beneath another, host the deepest and largest earthquakes.
Q 04Which seismic wave travels fastest and reaches a recording station first?
P-waves
P-waves, or primary waves, arrive first, so early-warning systems detect them to send alerts seconds before the slower, destructive waves hit.
Q 05Which famous tower's soft soil has helped it survive at least four strong earthquakes?
Pisa's Leaning Tower
Pisa's Leaning Tower sits on soil so soft that the tower doesn't sway in step with quake shaking, so the ground that tilted it has also saved it.
Q 06Which island lies on the Ring of Fire, the belt where about 90% of the world's earthquakes strike?
Taiwan
Taiwan sits on the Ring of Fire, while Iceland shakes because it straddles the Mid-Atlantic Ridge, where two plates pull apart.
Q 07Which famous high-speed trains brake automatically when seismic sensors detect an earthquake?
Shinkansen
Shinkansen lines brake automatically on quake alerts, and when one derailed in the 2004 Chūetsu earthquake, none of its 155 passengers was hurt.
Q 08Which famous naturalist was ashore at Valdivia when a severe earthquake struck in February 1835?
Charles Darwin
Charles Darwin felt it on the Beagle voyage, and captain FitzRoy later found mussel beds stranded above high tide: the land had risen by metres.
Q 09Which country was devastated by the largest earthquake ever recorded, on 22 May 1960?
Chile
Chile's 1960 Valdivia earthquake, magnitude 9.5, is the largest ever instrumentally recorded, and within two days the Cordón Caulle volcano erupted.
Q 10What property of secondary seismic waves stops them passing through liquid?
They are transverse, restored by shear stress
They are transverse, restored by shear stress: particles move at right angles to the wave's travel, and liquids and gases can't resist shear.
Q 11The San Andreas Fault runs along the boundary between the North American plate and which other?
Pacific
The San Andreas separates the Pacific plate from the North American plate; it is a right-lateral strike-slip transform fault whose two sides grind past each other horizontally rather than one diving beneath the other.
Q 12What does the Japanese word tsunami literally mean?
Harbour wave
Tsunami means 'harbour wave', from tsu (harbour) and nami (wave): fishermen at sea felt nothing pass beneath them and came home to find their harbours wrecked.
Q 13Instead of standing in a doorway, what do safety officials tell people indoors to do in an earthquake?
Drop, cover and hold on
Q 21Intensity scales such as the Modified Mercalli rate an earthquake by what?
Observed effects at a given place
Intensity scales like the Modified Mercalli rate observed effects at a given place, from I (not felt) to XII (total destruction), so one quake has many intensities but a single magnitude.
Q 22In Norse myth, which bound god causes earthquakes when he writhes as snake venom drips onto his face?
Loki
Loki's wife Sigyn catches the venom in a basin, but whenever she leaves to empty it, the drops make him writhe so hard the earth shakes.
Q 23Roughly how long is the Ring of Fire tectonic belt?
About 40,000 km
Drop, cover and hold on, ideally under a sturdy table: doorways in modern houses are no stronger than anywhere else and don't shield you from falling objects.
Q 14If an aftershock is larger than the main shock, what is the original quake redesignated as?
A foreshock
The earlier quake becomes a foreshock, since labels are fixed only once the whole sequence is known, as with a big shock two days before Japan's 2011 Tōhoku earthquake.
Q 15In Japanese mythology, earthquakes are caused by Namazu, a giant example of which animal?
Catfish
Namazu is a giant catfish said to lie beneath Japan, pinned down by the god Kashima with a stone; when Kashima's guard slips, the catfish thrashes and the earth shakes.
Q 16In Greek mythology, which god was held responsible for causing earthquakes?
Poseidon
Poseidon, god of the sea, was also the earth-shaker; Homer calls him Ennosigaios, and Greeks pictured his trident striking the ground to cause earthquakes.
Q 17An earthquake one whole magnitude higher releases roughly how much more energy?
About 32 times
About 32 times, so two steps compound to about 1,000: a magnitude 7 quake unleashes roughly the energy of a thousand magnitude 5 quakes.
Q 18The AD 132 seismoscope dropped bronze balls from dragons' mouths into the mouths of which creatures?
Toads
A ball falling into one of eight bronze toads supposedly showed the direction of a distant quake.
Q 19Which Han dynasty scholar is credited with inventing the first seismoscope?
Zhang Heng
Zhang Heng built his bronze seismoscope in AD 132; he was also an astronomer and mathematician who catalogued around 2,500 stars.
Q 20In December 2018, which mission became the first to place a seismometer on the surface of another planet?
InSight
InSight set its SEIS seismometer directly on the Martian ground on 19 December 2018, and the mission ended in December 2022 when dust smothered its solar panels.
The Ring of Fire runs about 40,000 km, almost exactly the distance around Earth's Equator.
Q 24Which architect's Imperial Hotel in Tokyo was hailed for surviving the 1923 Great Kantō earthquake?
Frank Lloyd Wright
Frank Lloyd Wright spread the legend of an undamaged hotel, but its central section had slumped and several floors bulged.
Q 25Which US financial giant's founder moved his cash to San Mateo after the 1906 San Francisco earthquake, so he could keep lending?
Bank of America
Bank of America grew from Giannini's Bank of Italy, whose rivals had to wait weeks to open vaults the fires had overheated.
Q 26What caused most of the destruction in San Francisco after the 1906 earthquake, levelling some 25,000 buildings?
Gas-main fires
Gas-main fires did the damage: more than 30 blazes from ruptured mains burned for days and destroyed about 25,000 buildings on 490 city blocks.
Q 27The 2004 Indian Ocean earthquake struck off the west coast of which Indonesian province?
Aceh
The epicentre lay off the west coast of Aceh, at Sumatra's northern tip; its capital Banda Aceh was the worst-hit city, and the tsunami killed about 228,000 people in 14 countries.
Q 28The 2004 Indian Ocean earthquake's rupture ran north from off Sumatra toward which island chain?
The Andaman Islands
It tore toward the Nicobar and Andaman Islands, and scientists call it the Sumatra–Andaman earthquake.
Q 29Ten-year-old Tilly Smith recognised the 2004 tsunami's warning signs on a Thai beach thanks to what?
A geography lesson at school
A geography lesson at school two weeks earlier had taught her the signs, and her warning helped clear Mai Khao Beach before the wave hit.
Q 30How long did the shaking of the 1960 Valdivia earthquake last?
About 10 minutes
The Valdivia shaking lasted about 10 minutes as the magnitude 9.5 rupture tore along roughly 800 km of coast.