How do you determine biotic and abiotic factors? Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms. What are […]
What does the moment magnitude scale measure and what does it tell us?
What does the moment magnitude scale measure and what does it tell us? Moment magnitude measures the size of events in terms of how much energy is released. Since magnitude scales are logarithmic, an increase of one unit of magnitude on a magnitude scale is equivalent to an increase of 10 times the amplitude recorded […]
What is causing the depths of the earthquakes to change?
What is causing the depths of the earthquakes to change? The most prominent example of this is in subduction zones, where plates are colliding and one plate is being subducted beneath another. As the slab descends into the mantle, rheology changes (viscosity characteristics) cause the plate to bend and deform, and generates these earthquakes. What […]
What to do during an earthquake if you are indoors if you are outdoors & if you are in a moving vehicle?
What to do during an earthquake if you are indoors if you are outdoors & if you are in a moving vehicle? Do not rush to go out of the building, to avoid the stampede. If you are outside, move away from buildings and utipty wires. Once in the open, stay there till the vibrations […]
Are old buildings earthquake proof?
Are old buildings earthquake proof? A new study in this tiny European country reveals that buildings constructed during the Middle Ages ride out earthquakes better than those built to modern standards. The reason for this counterintuitive truth appears to be that old buildings were constructed so that the floor doesn’t attach to the walls. Is […]
How are buildings made to withstand earthquakes?
How are buildings made to withstand earthquakes? To withstand collapse, buildings need to redistribute the forces that travel through them during a seismic event. Shear walls, cross braces, diaphragms, and moment-resisting frames are central to reinforcing a building. Shear walls are a useful building technology that helps to transfer earthquake forces. How much does it […]
Did the US help Japan after the 2011 tsunami?
Did the US help Japan after the 2011 tsunami? The Marines were participating in Operation Tomodachi, a joint humanitarian assistance operation in response to the 9.0-magnitude Tohoku earthquake and tsunami that struck northeastern Japan on March 11, 2011. … How tall was the Japanese tsunami? The March 11, 2011, earthquake generated a tsunami with a […]
When did the Valdivia earthquake start and end?
When did the Valdivia earthquake start and end? 1960 Valdivia earthquake Iquique Santiago Punta Arenas UTC time 1960-05-22 19:11:14 Local time 15:11:14 Duration approx. 10 minutes Magnitude 9.4–9.6 Mw When did the 9.5 earthquake happen? May 22, 1960 On May 22, 1960 a great Mw 9.5 earthquake, the largest earthquake ever instrumentally recorded, occurred off […]
Where in the US did 3 large earthquakes happen in a short amount of time?
Where in the US did 3 large earthquakes happen in a short amount of time? New Madrid earthquakes of 1811–12, series of three large earthquakes that occurred near New Madrid, Missouri, between December 1811 and February 1812. What city was the first reported earthquake to have its epicenter in Maryland occur? Annapolis The first reported […]