why do cyclones and earthquakes and mudslides mostly happen at night.?
373466
They don't. They can happen anytime. Cyclones or hurricanes last for several days and may arrive at a place in the day or night. Earthquakes can happen when the plates in the earth move. The Indian Ocean earthquake that caused the Boxing Day 2004 tsunami happened around 8.00 am in local time. Mudslides occur after heavy rain or snow,
23698
An earthquake is a sudden and sometimes catastrophic movement of a part of the Earth's surface. Earthquakes result from the dynamic release of elastic strain energy that radiates seismic waves. Earthquakes typically result from the movement of faults, planar zones of deformation within the Earth's upper crust. The word earthquake is also widely used to indicate the source region itself. The Earth's lithosphere is a patch work of plates in slow but constant motion (see plate tectonics). Earthquakes occur where the stress resulting from the differential motion of these plates exceeds the strength of the crust. The highest stress (and possible weakest zones) are most often found at the boundaries of the tectonic plates and hence these locations are where the majority of earthquakes occur. Events located at plate boundaries are called interplate earthquakes; the less frequent events that occur in the interior of the lithospheric plates are called intraplate earthquakes (see New Madrid Seismic Zone). Earthquakes related to plate tectonics are called tectonic earthquakes. Most earthquakes are tectonic, but they also occur in volcanic regions and as the result of a number of anthropogenic sources, such as reservoir induced seismicity, mining and the removal or injection of fluids into the crust. Seismic waves including some strong enough to be felt by humans can also be caused by explosions (chemical or nuclear), landslides, and collapse of old mine shafts, though these sources are not strictly earthquakes.
560264
I got hit more in the day than night but night sux because of antitank mines
577504
Basically, because of the very low moisture content in the desert air.\nThe energy that comes from the Sun, can be used to heat (raise temperature, sensible heat), or to evaporate water (latent heat). When there is no water to evaporate, it is all used to elevate the temperature, making it so hot.\nAt night, on the other hand, there are no clouds to prevent loss of long wave radiation (heat), so the temperature drops largely.
127084
I suspect that what you mean is that the relative humidity is sometimes greater at night than it is during the daytime. This is because the air is warmer usually during the day, so it can hold more moisture.
352896
The early afternoon and evening are the warmest times of the day, and that warmth fuels the convection that powers storms.  Conversely, late at night and early morning are the coolest--and hence the most stable--times of the day.
56333
A natural disaster is a catastrophe that occurs when a hazardous physical event (such as a volcanic eruption, earthquake, landslide, hurricane, or any of the other natural phenomena listed below) precipitates extensive damage to property, a large number of casualties, or both. In areas where there are no human interests, natural phenomena do not result in natural disasters.\n\nA cyclone is the rotation of a volume of air about an area of low atmospheric pressure. Cyclones are responsible for a wide variety of different meteorological phenomena such as tropical cyclones and tornadoes. Because of this, most weather forecasters avoid using the term cyclone without a qualifying term.\n\nAn earthquake is a sudden and sometimes catastrophic movement of a part of the Earth's surface. Earthquakes result from the dynamic release of elastic strain energy that radiates seismic waves. Earthquakes typically result from the movement of faults, planar zones of deformation within the Earth's upper crust. Most earthquakes are tectonic, but they also occur in volcanic regions and as the result of a number of anthropogenic sources, such as reservoir induced seismicity, mining and the removal or injection of fluids into the crust.\n\n\nA tsunami is a series of waves generated when water in a lake or the sea is rapidly displaced on a massive scale. Earthquakes, landslides, volcanic eruptions and large meteorite impacts all have the potential to generate a tsunami. The effects of a tsunami can range from unnoticeable to devastating.
281760
This is probably because most large earthquakes occur very deep in the Earth (along subducted plate contacts) so they register with low amplitudes at the surface. But if a large earthquake happens near the surface, it will have a larger amplitude and likely a long duration compared to smaller earthquakes. The longer duration can be due to more energy which generates larger sizes and larger quantities of waves that can resonate, interfere with one another and reflect off of geologic surfaces to prolong the quake..
1080558
Earthquakes in the Pacific region occur at different seasons of the year and with different frequency. Scientists from the Shirshov Institute of Oceanology RAS and the Institute of Marine Geology and Geophysics FEB RAS in Yuzhno-Sakhalinsk have proved that these differences are not by chance and that the position of the Earth in its orbit influences their frequency.\n\nThe researchers reviewed the within-year distribution of earthquakes for several subregions of the Pacific Ocean: on the Aleutian Islands, Kuril Islands and Kamchatka, New Zealand and in several points in the south of Oceania and South America. They divided all earthquakes in terms of the magnitude of their nidus and depth. The analysis showed that deep earthquakes occur evenly over the course of the year, while shallow ones occur more often in December.\n\nThey believe that the December peaks of shallow earthquakes are linked in part with tidal effects, while their periodicity is linked with the movement of the Earth in orbit. The perihelion, the minimal distance of the Earth from the Sun, comes in early January. At this time the tidal forces, brought about by the Sun, reach a maximum, just as the Sun’s linear velocity in orbit. The scientists remind us that the catastrophic Indonesian earthquake of 2004 occurred on 26 December, when the Earth was nearing perihelion, in a New Moon, when the total effect of tidal forces of the Sun and Moon had reached a maximum level. The Iranian earthquake of 2003 also occurred on 26 December.
510562
forest fire, usually started by lightning, is one especially during the dry seasons. on the rainy seasons, there is a threat of avalanche if the trees are not numerous enough to hold the massive downpour from eroding the soil on the steeper sides of the mountain. earth quakes may also cause avalanches in addition to massive downpours.
506147
They do occur during the day.  The huge quake that hit San Franciso in 1989 happened around 5pm.
330575
Because it is dark in the night. Our ancestors could not do anything but sleep when dark. And I think it remained in genes of the most, the custom. Nocturnal creations being the exception.
237412
It could be night falls but never breaks and day breaks, but never falls.  It could also be one answer for both...  Water falls but does not break when it does and water breaks (as in waves at the beach) but does not fall in this case.
327885
The stars are out all the time it's just that during the hours of daylight it's too bright to see them.  There will be stars every night, whether cloud obscures them or not is a different matter.
1050106
It storms more in the afternoon than in the morning because the sun (in addition to creating all of the earth's weather) gives tremendous amounts of energy to weather systems making them 'stormy' as opposed to just 'rainy'. In reality the afternoon / early evening hours are the most common times for a storm (during the warm weather seasons at least) \n\nCheers.
46085
I grew up in an area where we had a lot of tornadoes. I have seen this and it does happen, however, it doesn't always happen, and sometimes a thunderstorm will have greenish clouds and no tornado. I think it is related to the way the light is filtered through the clouds, and perhaps the really big clouds that come with tornadoes may have more of this effect. There is a good article at the link below:
1165348
Because you are in the neighborhood of ocean. In the day when it starts warming up, the water in the sea evaporates and then the clouds come with wind. So it rains in the afternoon or the evening when there are enough raindrops in the clouds