Articles in Earthquakes
Pakistan’s recent deadly 7.8 magnitude earthquake had a surprising twist – an entire island rose out of the ocean.
I think it looks bigger in the photo than it really is, because it is only 600 meters from the shoreline:
The earthquake was so powerful that it caused the seabed to rise and create a small, mountain-like island about 600 metres off Pakistan’s Gwadar coastline in the Arabian Sea. [ABC Australia]
“It’s an oval shaped island which is about 250ft to 300ft (76-91m) in length, and about 60 to 70ft above the water,” he said. It has a rough surface, much of which is muddy and some parts are mostly made up of fine- to coarse-grained sand. [BBC]
So if an island can come into rapid existence, presumably one can disappear just as easily, like Atlantis allegedly did.
I recently mentioned how (in terms of earthquake activity) our planet had gone eerily quiet right at the end of the Mayan calendar. Well, seems like she was just storing them up for now:
Austria – strongest quake (4.5) in 13 years
Hokkaido, Japan – 6.9 quake – fortunately no damage or tsunami
Scottish Highlands – strongest quake (2.4) in 120 years
Solomon Islands – 6.3 quake
Kazakhstan – 6.0 quake
All in the last 6 days.
It is almost ironic, and there’s a tiny part of me wondering if the ancient Maya predicted Dec 21, 2012 as the most un-eventful date to give us.
Yes, there are some winter storms in the USA/Europe. But these aren’t exactly unexpected. What is unusual is the lack of:
earthquakes – according to the USGS this is a list of the significant earthquakes of the last 4 months- have any reached your preferred news service?
Magnitude 6.8 VANUATU December 21, 2012
Magnitude 7.1 BANDA SEA December 10, 2012
Magnitude 6.3 NORTH ISLAND OF NEW ZEALAND December 07, 2012
Magnitude 7.3 OFF THE EAST COAST OF HONSHU, JAPAN December 07, 2012
Magnitude 6.4 KURIL ISLANDS November 16, 2012
Magnitude 6.5 OFFSHORE GUATEMALA November 11, 2012
Magnitude 6.8 MYANMAR November 11, 2012
Magnitude 4.3 EASTERN KENTUCKY November 10, 2012
Magnitude 7.4 OFFSHORE GUATEMALA November 07, 2012
Magnitude 7.7 QUEEN CHARLOTTE ISLANDS REGION October 28, 2012
Magnitude 6.5 COSTA RICA October 24, 2012
Magnitude 5.3 CENTRAL CALIFORNIA …
Here’s the official map from Geoscience Australia. As is the case with any earthquake maps, it is purely backwards looking. Prior to the recent strong quake in Moe, Victoria, that part of map wouldn’t have been in red.
The Latrobe Valley town joined locations in the Northern Territory and Western Australia as the regions most at risk after Moe was at the epicentre of two earthquakes in as many months this year.
Shockwaves were felt by millions across the state, when a 5.4 magnitude quake – Victoria’s biggest – struck 16km southwest of Moe in June, damaging homes and throwing people from their chairs. [Source: Herald Sun]
The full-size, interactive map can be seen here.
This is the closest date for an eclipse to the end of the Mayan calendar. And according to my research, lunar eclipses (and a day or so either side) have double the odds of a major earthquake compared to the average. While most earthquake experts will tell you a megaquake of 10+ cannot happen, I consider it to be a possibility.
Nov 28 is the date I am most concerned about, besides Dec 21. But don’t be overly alarmed, I reckon it would be impossible for the Mayan calendar to be solely an earthquake prediction. That doesn’t mean there wouldn’t be an earthquake, it just means that something else would be triggering the quake. Patrick Geryl suggests the Sun is the trigger.
I can’t wait for this product to go into production. Even though I live in a region that doesn’t really have earthquakes, I want one!
The “Earthquake-Proof Table,” designed by Israeli industrial designers Arthur Brutter and Ido Bruno, was built with the table’s live-saving potential in mind. “Existing non-earthquake-designated classroom tables often turn into lethal traps for those taking refuge,” the designers told Core 77. The designers believe the table could provide safety to the 300 million students worldwide living in countries prone to quakes. It’s light enough for students to move, but can withstand more than 2,000 pounds of impact.
I’ve ignored most of the conspiracy talk and amateur speculations that can be found online, like suggestions that the Fukushima disaster of 2011 is the cause of illness in the USA.
But when the report is from ABC Australia and they interview a senior nuclear reactor engineer from Japan, I listen:
One more major earthquake in Japan and the nation could face a nuclear disaster 10 times the scale of Chernobyl.
If there’s a crack in the pool and water drains out, the fuel rods will be exposed. It will then be impossible to cool the fuel. So if an accident happens, 10 times more cesium than has already been released by the Fukushima meltdown will go into the atmosphere. Depending on which way the wind is blowing, Tokyo could become uninhabitable.
HIROAKI KOIDE (voiceover translation): As soon as possible, those fuel rods should be removed. Earthquakes are striking almost every day around the Fukushima plant, …
It’s an inexact science, but generally pressure builds up along fault lines, and earthquakes happen in roughly regular manner. Seismologists can’t tell us the day or even year of a major earthquake, but they are pretty good at calculating when a big one is approximately due. And despite quakes in the last couple of years, big ones are kinda due for California, New Madrid, Japan and New Zealand. I would expect that one of these places will have their biggest quake for a long time during the current decade.
It has now been determined that there is an extra likelihood on NZ having a big quake soon. The West Coast might be sparsely populated, but Queenstown is mentioned, and that’s a special place for many Kiwis and tourists:
GNS Science and University of Nevada-Reno scientists have found that the southern part of the 800 kilometre-long fault – which runs along the western edge of the …
According to Universe Today, this month’s New Moon is at June 19, 15:02 (Universal Time).
According to the USGS and The Age, Moe (country town not far from Melbourne) had a 5.2 magnitude earthquake at June 19, 10:53.
My recent research has determined that major earthquakes are more likely during lunar eclipses. And some of the most catastrophic earthquakes recently have occurred during solar eclipses. They are the same alignments as full and new moons, only more precise.
The other observation I have made is that at those times earthquakes are more likely in places that are not usually associated with earthquakes. Like the UK and Australia. Just two weeks ago, during full moon, Ireland had their biggest ever recorded earthquake.
It’s pretty much statistically impossible (for me anyway) to show that such quakes are becoming increasingly more common. But they certainly could be, and it seems that way. Every two weeks from here …
Possibly trigger by the recent lunar eclipse, today there were two 4.2 magnitude earthquakes in Australia, in a region that rarely has any seismic activity:
The centre’s director Kevin McCue said these were the first earthquakes greater than magnitude 4 to strike inland northern NSW since December 1969, when a magnitude 5 quake struck near Coonabarabran.
Mr McCue said the Friday night quakes were felt as far as Coonabarabran, 120km from the epicentre, as well as in Tamworth and Gunnedah.
“It’s unusual to have an earthquake of this size.”
From studying centuries of earthquake records, Japanese geologists have mapped out segments of the subduction zone that seem to rupture regularly and repeatedly. The part southwest of Tokyo, underlying the coast around Suruga Bay, is called the Tokai segment.
The Tokai segment last ruptured in 1854, and before that in 1707. Both events were great earthquakes of magnitude 8.4. The segment ruptured in comparable events in 1605 and in 1498. The pattern is pretty stark: a Tokai earthquake has happened about every 110 years, plus or minus 33 years. As of 2005, it has been 151 years and counting.
Shinichi Sakai from University of Tokyo predicted on 23. January 2012 probability of major earthquake during next four years is 70% and during 30 years is 98%.
So it looks like a case of not if, but when. Well Britton LaRoche has been studying historical earthquake records, and like myself he has …
Britain and Ireland aren’t known for earthquakes, so even smaller quakes make the news. The biggest ever recorded in the region was a 5.4 magnitude on July 19th, 1984, off the west coast of Wales and felt in parts of Ireland. And now the second biggest, and the highest magnitude ever recorded in Ireland, has just occurred – 4.0 on the Richter scale, 60 km west of Belmullet, Co Mayo, at a depth of 3 km, at 8.58 am, June 6.
Is it possible that, as well as triggering some of the largest quakes worldwide, eclipses also set off quakes that are small, but relatively huge for their region? The record 1984 quake mentioned above was within 5 weeks of a lunar eclipse…
It seems that some ancient scholars were aware of eclipse / earthquake connections. First up is Aristotle. While his explanation is most likely wrong, I doubt he would have provided it without a known connection with eclipses:
An earthquake sometimes coincides with an eclipse of the moon for
the same reason. When the earth is on the point of being interposed,
but the light and heat of the sun has not quite vanished from the
air but is dying away, the wind which causes the earthquake before the
eclipse, turns off into the earth, and calm ensues. For there often
are winds before eclipses: at nightfall if the eclipse is at midnight,
and at midnight if the eclipse is at dawn. They are caused by the
lessening of the warmth from the moon when its sphere approaches the
point at which the eclipse is going to take place. So the influence
which restrained and quieted the air weakens and the …
Due to the number of people asking, I’ve made the data regarding major earthquakes and lunar eclipses available online for anyone to check:
The first tab has the data, the second describes where I sourced the data from.
1720 earthquakes of 6.5+ magnitude in 14031 days (Jan 1 1973 until today) equals 1 in every 8.15 days. Average magnitude 6.878.
45 earthquakes of 6.5+ magnitude from 90 eclipses, from 270 days = 1 in every 6 days. Average magnitude 6.945.
179 earthquakes of 7.5+ magnitude in 14031 days equals 1 in every 78.3 days
7 earthquakes of 7.5+ magnitude from 90 eclipses, from 270 days = 1 in every 38.5 days
It is up to date, including today. So, basically if no major quake happens today or tomorrow, the numbers are still accurate. If there is one, then the numbers become slightly more convincing.
Last year I undertook a long and tedious task that seemingly nobody else has done. I checked every lunar and solar eclipse since 1973, and I checked them against every earthquake measuring 6.5 or greater in magnitude. I would have gone further back, but that’s the limit for comprehensive USGS records.
For solar eclipses, there was a slight increase of major earthquakes, but not enough to make it worthy of further investigation. Lunar eclipses were quite different, with the odds of a major earthquake doubling within a few days:
M6.5+ … normal is an average of one every 8.4 days
Within four days of a lunar eclipse, averages one every 7.26 days
Within one day of a lunar eclipse, averages one every 5.87 days
M7.5+ … normal is an average of one every 73.8 days
Within twenty days of a lunar eclipse, averages one every 51.6 days
Within four days of a lunar eclipse, averages one every …