M7.1 Quake Headed for Guam - Seismograms

  • Thread starter davenn
  • Start date
In summary: Thanks for the summary! I'm from the Pacific Northwest, so I'm definitely interested in learning more about the SW Pacific region.
  • #1
davenn
Science Advisor
Gold Member
2023 Award
9,587
10,208
Earth sciences news on Phys.org
  • #2
This is as close as I could find. Still think Guam?
http://latino.foxnews.com/latino/news/2014/09/15/mexico-baja-california-peninsula-rocked-by-2-earthquakes/ [Broken]
 
Last edited:
  • #3
http://earthquake.usgs.gov/earthquakes/eventpage/usb000sdcr#summary

yup still think its Guam :wink:

after about an hour or so it was downgraded to a M 6.7
Its just on 137 km deep so that explains its lack of an extended period of surface waves.

For me here in Sydney, Australia, for quakes down the western side of the Americas ( nth, cntrl, sth) I start seeing them at ~ M 5.8. I can determine (clearly recognise) P and S arrivals at ~ M 6.5

cheers
Dave
 
Last edited:
  • #4
Mount Mayon, on the SE tip of Luzon in the Philippines, is currently erupting. Evacuations are underway should a more catastrophic eruption occur:

http://www.weather.com/news/mayon-volcano-eruption-philippines-evacuations-20140916
 
  • #5
  • #6
The http://www.guampdn.com/article/20140918/NEWS01/309180003/6-7-quake-rattles-Guam says it was downgraded to 6.7 and there was minimal damage.
 
  • #7
Vanadium 50 said:
The http://www.guampdn.com/article/20140918/NEWS01/309180003/6-7-quake-rattles-Guam says it was downgraded to 6.7 and there was minimal damage.

yes that's correct, fortunately it was offshore rather than right underneath Guam

Dave
 
  • #8
SteamKing said:
Mount Mayon, on the SE tip of Luzon in the Philippines, is currently erupting. Evacuations are underway should a more catastrophic eruption occur:

http://www.weather.com/news/mayon-volcano-eruption-philippines-evacuations-20140916

My Wife if from the Philippines. We haven't been to Mt Mayon yet ... its on that "to do" list
Travelling in the Philippines isn't much fun. The transport system is diabolical and the roads are even worse and the SE end of Luzon is a long way off our usual beaten path :wink:

Have visited the Ta'al volcano (sthrn Luzon) a couple of times and taken a boat out across the crater lake to the central island cone that quietly smokes away

Actually there's a bunch of volcanoes in the western/SW Pacific that are on the to do list to visit
Time and money both lacking


Dave
 
  • #9
just a post of the seismogram, as the quake will scroll off the display by the end of today

attachment.php?attachmentid=73254&stc=1&d=1411001396.gif


cheers
Dave
 

Attachments

  • 140917 UT M 6.7 Guam reg zhi.gif
    140917 UT M 6.7 Guam reg zhi.gif
    130.4 KB · Views: 703
  • #10
Wow, awesome seismograph :approve:.
 
  • #11
Thanks Lisa :)D
 

1. What is a seismogram?

A seismogram is a graphical representation of the ground motion caused by an earthquake. It shows the amplitude and duration of the seismic waves recorded by a seismograph.

2. How is a seismogram used to measure earthquakes?

A seismogram is used to measure earthquakes by recording the amplitude and frequency of the seismic waves. Scientists can analyze the data from seismograms to determine the location, magnitude, and depth of an earthquake.

3. What does the "M7.1" in the title refer to?

The "M7.1" refers to the magnitude of the earthquake. The magnitude scale is a measure of the energy released by an earthquake and is based on the logarithm of the amplitude of the seismic waves.

4. What is the significance of the earthquake being "headed for Guam"?

The location of the earthquake, in this case being "headed for Guam," is important because it can affect the intensity of the seismic waves in that area. The closer an earthquake is to a populated area, the more damaging it can be.

5. Can seismograms predict earthquakes?

No, seismograms cannot predict earthquakes. They can only record the seismic waves once an earthquake has already occurred. However, scientists can use the data from seismograms to better understand and potentially forecast earthquake activity in the future.

Similar threads

Replies
2
Views
1K
  • Earth Sciences
Replies
9
Views
2K
Replies
8
Views
875
  • Earth Sciences
Replies
10
Views
2K
  • Earth Sciences
Replies
5
Views
1K
  • Earth Sciences
Replies
12
Views
2K
Replies
4
Views
2K
  • Earth Sciences
Replies
3
Views
4K
  • Earth Sciences
Replies
2
Views
1K
Replies
7
Views
3K
Back
Top