Earlier today, 3 strong earthquakes measuring 7.3, 7.6, and 7.4 struck Moro Gulf, Mindanao, Philippines. The magnitude of the earthquakes seem frightening, however, no damage had been reported as of yet. Some people even slept through the whole thing! The depth of the earthquakes greatly affected the amount of damage they would have inflicted. They were all more than 300 miles underground, and relatively distant from coasts. I think, for a country in the Ring of fire, it was extremely lucky for them to have 3 strong earthquakes in the same area without inflicting any damage at all.
Before anyone gets freaked out and relate this to 2012, as I mentioned above, Philippines locate in the pacific Ring of Fire, where earthquakes and volcanoes are like cars honking on busy streets.
I agree with you that this isn't something to freak out about, but even so I find it interresting that 3 M7+ occur within an hour (and at deep focus too). As I see it there is three factors that add to the strangeness of this whole event (amount of quakes, magnitude of quakes and depth of quakes). In just one hour we had one fifth of the yearly averages of M7's (which is pure coincidence, I guess) and in some ways that makes this all a little weird. Even so, as Kevin stated, it took place in the Pacific Ring of fire and thus is nothing uncommon.
Facts are stubborn things.
- Ronald Reagan
And now (as for 14 Aug) we have had 8 quakes above 7.0 in one month! Did the Earth experience such "peaks" before?
The AVERAGE annual 7.0-7.9 or so quakes is 15-17. Keep in mind this is an average, which means it can very much go above this, and another year go far below this. Thus the average.
I'm not expert on quakes, so you'll have to wait for someone who has more insight than me.
Also, do keep in mind that the 3 pulse of 7.3 quakes in July WERE in the Ring of Fire, and can be explained easily by that. While this event was is common, it's not unheard of.
I suppose it's worth investigating, and it is worth noting that there is a theory suggesting that entering solar maximum can cause an increase in quakes. Again, this is simply a theory, but is something to keep in mind.
All I can say for sure is to not worry about it unless we start getting more 8.0+'s. That would be a cause of some concern. That, or we greatly break the average 15 of 7.0-7.9's
But yeah, I'd wait for someone with more knowledge with this.
Err, I meant to say "Is not common, but is not unheard of."
And now (as for 14 Aug) we have had 8 quakes above 7.0 in one month! Did the Earth experience such "peaks" before?
An average means that roughly half the totals will be higher and roughly half lower. That's what an average is, by definition.
I have no idea what you mean by "peaks." Eight 7.0+ quakes in a month is certainly above average, if that's an accurate figure, but averages do not imply that the distribution will be uniform. We expect to see around fifteen 7.0 to 7.9 magnitude earthquakes per year. Currently, here in mid-August, we've seen sixteen, and we've seen one 8.0 to 9.9 quake. This isn't out of the ordinary, especially considering that all of the quakes have occurred in areas prone to receive them.
But let's assume that many quakes clustered together is a unique event. So what? Why is it significant, in your opinion? What did you think in the 1990s, when there were eighteen or more 7.0+ quakes over three separate years?
Eighteen or more 7.0+ Quakes over three separate years? So you mean "It was Eighteen to Twenty" or "It was more than eighteen. A lot more."
If you mean it was between eighteen to twenty, then yeah that'd be way below average considering we should have, going by the average, seen a total around 40-50 7.0-7.9's.
No offense, Juju, but I don't quite get the point you were trying to make. Could you be more specific? Unless you meant there were 18 or more each year for three years.
Hard to tell what you're going for.
(PS: NOBODY right now would even be acknowledging any natural disasters to the magnitude they are now if it wasn't for 2012. Stuff only SEEMS worse because you're being more conscious of it. You're trying to scare yourself into believing.)
Eighteen or more 7.0+ Quakes over three separate years? So you mean "It was Eighteen to Twenty" or "It was more than eighteen. A lot more."
I mean the 1990s saw three separate years in which there were eighteen or more quakes registering 7.0 or above.
If you mean it was between eighteen to twenty, then yeah that'd be way below average considering we should have, going by the average, seen a total around 40-50 7.0-7.9's.
I don't think you understand. 1990 saw eighteen; 1995 saw eighteen and two 8.0+; 1999 saw eighteen. All of these totals are above average. Basically, I'm wondering if Matt was in panic mode all through the 1990s, if our sixteen quakes here in 2010 have him so terribly concerned.
No offense, Juju, but I don't quite get the point you were trying to make. Could you be more specific? Unless you meant there were 18 or more each year for three years.
I meant exactly what I said. "What did you think in the 1990s, when there were eighteen or more 7.0+ quakes over three separate years?" If you were truly so unclear, you could have consulted our one-stop shop for this type of data, which I have linked to over and over again on this board.
Hard to tell what you're going for.
I really don't think it was that ambiguous, but you can refer to my brief explanation above.
NOBODY right now would even be acknowledging any natural disasters to the magnitude they are now if it wasn't for 2012.
That is probably true, which is why I asked Matt about the 1990s.
If i remember correctly, one of the years in the 1900s, we had 32 mag 7.0 - 7.9 earthquakes…
Why do I find it to be so fascinating that when the Earth rumbles, people immediately relate it to a pending doomsday such as 2012? Actually, I may be emotionally confused, I may be fascinated or, amused..
The Earth rumbles, people, best get used to it, if you're expecting to live here on this planet revolving around the Sun. It's going to rumble, it's going to warm, it's going to cool and just like a woman during her stages of Menopause, Mother Nature will have her mood-swings. Whether we like it or, not.
Wie Sie säen, so sollst du ernten.
Man, Nurse, you sure do know how to make natural disasters sound kind of hot.
…Wait.