Do earthquakes only happen at night?

usgs.gov - Can the position of the moon or the planets affect seismicity? Are there ...

Who created the 4c model?

The 4Cs (Clarity, Credibility, Consistency, Competitiveness) is most often used in marketing communications and was created by David Jobber and...

Last updated Oct 15, 2018

What is the oldest written word?

Mother, bark and spit are just three of 23 words that researchers believe date back 15,000 years, making them the oldest known words. May 7, 2013

Last updated Oct 10, 2021

Promotion

Earthquakes are equally as likely to occur in the morning or the evening. Many studies in the past have shown no significant correlations between the rate of earthquake occurrence and the semi-diurnal tides when using large earthquake catalogs. Several recent studies, however, have found a correlation between earth tides (caused by the position of the moon relative to the earth) and some types of earthquakes. One study, for example, concludes that during times of higher earth and ocean tides, such as during times of full or new moon, earthquakes are more likely on shallow thrust faults near the edges of continents and in (underwater) subduction zones. Lunar or solar eclipses represent, of course, special cases of full and new moon, but do not cause any special or different tidal effects from full and new moon. Earth tides (Earth's surface going up and down by a couple of centimeters) and especially ocean tides (surface of the ocean going up and down by a meter or more) raise and lower the confining pressure on shallow, dipping faults near continental edges and in subduction zones. When the confining pressure is lessened, the faults are unclamped and more likely to slip. The increased probability is a factor of ~3 during high tides. But you must stop and realize that the background probability is, in general, very low in a given place and year (fractions of a percent), so that raising this tiny probability by a factor of 3 during high tides still results in a very tiny probability. There have also been some small but significant correlations reported between the semi-diurnal tides and the rate of occurrence of aftershocks in some volcanic regions, such as Mammoth Lakes. The moon, sun, and other planets have an influence on the earth in the form of perturbations (small changes) to the gravitational field. The relative amount of influence is proportional to the objects mass, and inversely proportional to the third power of its distance from the earth. The stresses induced in the earth by an extraterrestrial mass are proportional to the gravitational field gradient dg( r ) / dr and NOT to the gravitational field g( r ). g( r ) = GMm / r^2 thus: dg( r ) / dr = -2 * g( r ) / r = -2GMm / r^3

Can you drink snow water?

Freshly melted snow is generally considered to be safe to drink without further treatment, however it should not be assumed that because water is...

Last updated May 11, 2018

What happens if you forget to soak beans overnight?

If you're the impatient, bean-hungry type, you can cook your beans from dry without any soaking at all. Here's the thing: Beans that have not been...

Last updated Jul 31, 2018

Promotion

When was the last biggest earthquake?

In terms of fatalities, the 2004 Indian Ocean earthquake was the most destructive event with around 227,898 fatalities, followed by the 2010 Haiti earthquake with 160,000 fatalities, 2005 Kashmir earthquake 87,351 fatalities and 2008 Sichuan earthquake with 87,587 fatalities.

en.wikipedia.org - Lists of 21st-century earthquakes - Wikipedia

[1] Earthquakes of magnitude 8.0 and greater from 1900 to 2018. The apparent 3D volumes of the bubbles are linearly proportional to their respective fatalities.

Animated Map of all world earthquakes from 2001-2015

The following is a summary of significant earthquakes during the 21st century. In terms of fatalities, the 2004 Indian Ocean earthquake was the most destructive event with around 227,898 fatalities, followed by the 2010 Haiti earthquake with 160,000 fatalities, 2005 Kashmir earthquake 87,351 fatalities and 2008 Sichuan earthquake with 87,587 fatalities. The 2011 Tōhoku earthquake and tsunami became the costliest natural disaster, resulting in approximately $360 billion in property damage at the time, followed by the 2008 Sichuan earthquake which resulted at least $150 billion in damage.

List of deadliest earthquakes [ edit ]

Note: At least 1,000+ fatalities

List of largest earthquakes by magnitude [ edit ]

Note: At least 8.5+ magnitude

List of costliest earthquakes [ edit ]

Note:This only ranks immediate costs, for example, nuclear meltdown and climate and fossil fuel costs, as well as other ongoing costs from quakes are not included.