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Are Skyquakes Real?

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by Alex Carter

In 2012 YouTube was inundated with videos of a very rare atmospheric phenomenon—the skyquake. Skyquakes are characterized by unexplained noises coming from the sky, often in remote areas with no obvious explanation as to the source of the sound. Skyquakes have been recorded all over the world, and in every case, the sky suddenly takes on a creepy hue and emits unsettling, unnatural noises.

The reason it’s easy to say that it was 2012 is because they were all uploaded to the same YouTube channel, skyquake2012, a channel that specialized in taking shaking, amateur phone footage and adding the creepy trumpet sound from Kevin Smith’s Red State movie. In other words, they were all hoaxes.

But the phenomenon itself is no hoax. A skyquake is a real event that has been documented for centuries.

It’s difficult to distinguish between fakes, videos of unexplained noises that are of human origin, and genuine skyquakes, but the real examples of this phenomenon are all described the same way by those who experience them: a loud boom that sounds like distant cannon fire. Weirdly, the genuine ones all occur near coastal areas.

No one has been able to fully explain why certain areas experience periodic skyquakes, but enough evidence exists to suggest these are real phenomena and that the residents of these areas aren't making up stories. The fact that there are words to describe the event in different languages lends further credibility. In Japan they are called uminari (海鳴り, "the rumbling of the sea"); in Dutch, "mistpoeffers"; and in parts of the U.S., "Seneca Guns."

Some skyquakes are said to have human origins, like when a military aircraft breaks the sound barrier—by the time the sonic boom is heard, the plane is no longer in sight. But that doesn’t explain any that were recorded before the invention of aircraft, which means there must be other explanations. One popular theory is that the sound is due to meteorites exploding in the upper atmosphere, although that raises the question as to why the bright flash accompanying the explosion isn’t more visible. Others suggest the noise may be due to thunder from storms over the horizon, which is plausible only if you don’t know what thunder sounds like.

The most likely explanation is that the Earth is passing gas. (Really!) The sound of gas escaping from underground vents would resemble a quiet volcano, or distant explosions, which would explain not only the sound, but why the sounds are pretty much only heard in coastal areas. Many of the vents weak enough to allow gas out would be underwater, and in many cases the gas may be due to decaying biomatter at the bottom of the lake. The gas could also be escaping from underwater caves that are collapsing.

All of this is to say, if you ever hear an unexplained explosion, rest assured that it was only the Earth. But for fun, you can still blame it on the dog.

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Weather Watch
Alaska Got 15 Inches of Snow in 90 Minutes Last Week
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Alaska is obviously no stranger to snow, but this month's white weather will likely go down in the state's record books. As The Weather Channel reports, Thompson Pass—a 2805-foot-high area in Alaska’s Chugach Mountains—received a whopping 15 inches of powder in just 90 minutes on Wednesday, December 6.

Thompson Pass sits just outside of Valdez, a tiny port city on Alaska’s south coast. Located along the Gulf of Alaska, Valdez is perhaps best known for the infamous 1989 Exxon Valdez oil spill, and for its rich Gold Rush history. Today, it’s important for commerce, since it’s the northernmost ice-free port in North America. But ice-free doesn't mean blizzard-free: The city is regularly cited as one of the snowiest places in the U.S., if not the snowiest. On average, locals can expect to see (and smell) 300 or more inches of frozen precipitation per year. As for Thompson Pass, it very often receives more than 700 inches of the wet stuff in a year.

Still, Mother Nature truly outdid herself on December 6, when Thompson Pass was slammed with what weather historian Christopher Burt deemed to be one of modern history’s most intense snowfalls. By the storm’s end, 40 inches of heavy snow had accumulated in just 12 hours, according to The Washington Post.

Who angered the winter weather gods? Or, more scientifically speaking, which atmospheric conditions led to the storm? According to experts, a stream of warm water vapor from the Pacific Ocean hit Alaska’s coast, traveling through an aerial channel known as an “atmospheric river.” When atmospheric rivers hit land, they release this water vapor as either rain or snow, according to the National Oceanic and Atmospheric Administration.

Intensifying the phenomenon was the North American Winter Dipole, which The Washington Post’s Jason Samenow described as a “fancy term to describe abnormally warm conditions in the West and cold conditions in the East.”

"Under such a pattern, the jet stream, the super highway for storms that divides cold and warm air, surges north in the western half of the nation, and crashes south in the eastern half,” Samenow said.

Valdez residents are accustomed to snow, but last week's storm was particularly challenging for townspeople. An avalanche buried Richardson Highway, the city’s only overland route that leads in and out of town. It reopened on Thursday, December 7, according to The Cordova Times, but driving conditions were poor.

While extreme, the Thompson Pass blizzard might not be history's weirdest snowfall. For example, arid countries like Kuwait and Iraq have experienced snow. In January 1887, 15-inch snowflakes were reportedly spotted at Montana’s Fort Keogh. And in 1921, over six feet of snow fell between April 14 and April 15 in Silver Lake, Colorado—the most snow to ever fall in a 24-hour period in the U.S.

[h/t The Weather Channel]

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Weather Watch
3 Ways We Can (Kind of) Control the Weather, and 5 Ways We Can't

Humans have the incredible ability to control the world around us. We can move mountains and land robots on other planets. We can keep each other alive longer than ever before and even bring entire species back from the brink of extinction. But despite all of our leaps forward, we're still unable to control the weather, a tremendous force that affects every human being on this planet. Still, humans have come up with some pretty crafty ways of influencing the weather—in small doses.

1. WE CAN MAKE IT RAIN … SOMEWHAT.

The desire to control weather has been a mainstay of imagination since, well, the beginning of imagination. The fortunes of entire societies can hinge on flood or drought. We have strong motivation to want to create a rainstorm in one spot or moderate snowfall in another. But the greatest success we've ever had is a technique that can (maybe) encourage a tiny bit of rain to form over a tiny area.

Cloud seeding is a process through which fine particles like silver iodide are released into a cloud in order to encourage the formation of rain or snow. These particulates serve as a nucleus around which water vapor can condense and turn into a raindrop or a snowflake. This is most commonly done with small airplanes, but it can also be accomplished by launching tiny rockets or flares from the ground.

In theory, the practice of cloud seeding could have innumerable uses around the world, including crop maintenance, providing drinking water, and even possibly weakening severe thunderstorms or hurricanes. There's only one problem: It doesn't work all that well.

The effectiveness of cloud seeding is a hot topic of debate among scientists, but most studies have either found negligible impacts on precipitation, or the researchers were unable to determine the exact impact of cloud seeding. Cloud seeding is a great concept if you want to help one cloud produce a little extra rain or snow just to say you can do it, but it's not the way to go if you're desperate and want to trigger a deluge. This process requires the pre-existing presence of clouds, so even if the technology improves in the future, it's not a viable solution for drought-stricken areas that haven't seen meaningful clouds in weeks.

2. WE CAN DEFINITELY ATTRACT LIGHTNING USING ROCKETS.

Lightning safety is one of the things you learn from a very young age. "When thunder roars, go indoors," as the motto goes. We learn to stay away from open areas and water during thunderstorms. But what if you wanted to attract lightning? It's surprisingly easy to do if you have the right equipment and really, really want to encounter some of nature's fury.

Scientists who want to study lightning can bring it right to their doorstep by using specially designed rockets attached to conductive wires that lead to the ground below. When a thunderstorm blows over the observation station, operators can launch these rockets up into the clouds to trigger a lightning strike that follows the wire right down to the ground where the rocket was launched. Voila, instant lightning. Just add rocket fuel.

3. WE CAN CREATE CLOUDS AND HEAT—EVEN WHEN WE DON'T MEAN TO.

Most of the ways in which we control—or, more accurately, influence—the weather is through indirect human actions—often unintentional. "Whoops, the nuclear power plant just caused a snowstorm" isn't as crazy as it sounds. Steam stacks can and do produce clouds and updrafts with enough intensity to create rain or snow immediately downwind. The very presence of cities can generate microclimates with warmer temperatures and heavier rain. And there's also climate change, the process in which our accumulated actions over a long period of time are influencing the very climate itself.

BUT WE CAN'T DO THE FIVE FOLLOWING THINGS.

Despite our limited ability to influence a few aspects of weather over small areas, there are some rather colorful conspiracy theories about whether or not governments and organizations are telling the whole truth about how much we can accomplish with today's technology. There are folks who insist that the trails of condensed water vapor, or "contrails," left behind jet aircraft are really chemicals being sprayed for sinister purposes. (They're not.) There are theories that a high-frequency, high-power array of antennas deep in the Alaskan wilderness can control every weather disaster in the world. (It doesn't.) There are even folks who insist that Doppler weather radar carries enough energy to "zap" storms into existence on demand. (Dr. Evil wishes.)

There are also some bizarre and unworkable theories that are offered in good faith. A meteorologist a few years ago opined on whether building an excessively tall wall across middle America could disrupt weather patterns that could lead to tornado activity. And every year the National Hurricane Center is peppered with questions about whether or not detonating nuclear bombs in a hurricane would disrupt the storm's structure. Unfortunately, while pseudoscience offers up great theories to test in the movies, when it comes to weather, we're still not in control.

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