No Earthquake Activity

According to Iris since i got home from work this evening till now (6 hours have passed) there has been no activity on their website since then, which was the california quake.


I hope that their website has messed up but for me there is at least 2-3 big quakes reported on there daily, but for this lengthy time period, this is somewhat alarming.


Lets hope its a glitch

I hope it is a website issue as well! Try the USGS site.

Webbot predicted the Aug 3 flurry pretty well, and they also said "and" Aug 4.

Had me kinda worried there for a moment, As i had a dream that a large quake hit Russia,

Any hows on looking at the UsGS seems there have been a few today,

earthquake.usgs.gov...



[edit on 4-8-2009 by asala]

Relief to know, thanks, must be a glitch in the matrix on their website not reporting quakes

Just out of interest? are you not getting any new quakes from the iris website ?

Iris for me also is not showing any updates, Odd stuff, But i sent in a report to them to make them aware if they where not already,

Can you imagine how eiry it would be if the quakes did stop though??

I noticed some small tremors in Barstow, Ca.

RSOE tremor detail.

2.1 @ 23:16:20 ; depth: 6.40 km
2.1 @ 23:23:04 ; depth: 10.10 km

Probably just nothing. Also noticed the one in Japan.

6.1
Date-Time Wednesday, August 05, 2009 at 00:17:58 UTC
Wednesday, August 05, 2009 at 09:17:58 AM at epicenter
Time of Earthquake in other Time Zones

Location 24.209°N, 125.057°E
Depth 22 km (13.7 miles) set by location program
Region SOUTHWESTERN RYUKYU ISLANDS, JAPAN
Distances 90 km (55 miles) ESE of Ishigaki-jima, Ryukyu Islands, Japan
330 km (205 miles) E of Su-ao, Taiwan
340 km (210 miles) SW of Naha, Okinawa, Japan
1905 km (1180 miles) SW of TOKYO, Japan

Location Uncertainty horizontal +/- 5 km (3.1 miles); depth fixed by location program
Parameters NST=173, Nph=173, Dmin=371.5 km, Rmss=0.95 sec, Gp= 29°,
M-type=centroid moment magnitude (Mw), Version=7
Source USGS NEIC (WDCS-D)


Event ID us2009jyab

This one just reported

I just don't understand why there have been big quakes recently near water and they don't form any tsunamis.
You would think that a 6 point and over quake on the water would make a large tsuname.
New Zealand, Baja, Indonesia, Japan today....none made a tsunami.

Originally posted by sharintexas
I just don't understand why there have been big quakes recently near water and they don't form any tsunamis.

Tsunamis form when large amounts of water are displaced.
Two requirements are needed for this:
- Epicenter occurring in deep seas
- Large earth movement during earthquake, which typically happens in thrust-type earthquakes in which one side of the fault is pushed upwards (because the other one goes under it). This happens on subduction zones in convergent tectonic plate boundaries.

Where the the Gulf of California lies, which is of shallow depth, The Pacific and the North American plates slide (grind) one against each other (transform-type plate boundary), therefore even during large earthquakes there won't be a large displacement of water.

[edit on 2009/8/5 by Shirakawa]

reply to post by Shirakawa


That explains it, thanks!