Quake Watch 2011

PDF package for the USGS details of the New Zealand quake (Mag 6.0 USGS, Mag 5.96 GeoNet, Mag 5.8 EMSC)

This contains a PDF file of my web page and a copy of the Pager PDF report from USGS.

Ash from Nabro seems to be reducing though the front is now reaching to Egypt, going North to North East and even expect to enter to Israel around midnight today Local Time.

Strange about main news media - BBC, CNN, Sky, Aljazeera; all quiet!
A few are waking up here and there; even some info still not verified or even purely wrong!
All official statements talk of Dubbi volcano, some 23 km NW from Nabro.

I suspect the eruption took place at 13.304 14.667 by looking at the last few quakes; big quakes stopped soon after eruption. On the other hand, the earthquake closest to the SAT pictures of eruption at 21h03 is way out 20 Km North; closer to Afambo; in effect that will then be a 'new volcano' thought there is a small vent near that epicenter.

BNO News: 25 minutes ago

An eruption is underway at the Dubbi volcano in the Southern Red Sea Region of Eritrea, the Volcanic Ash Advisory Center (VAAC) said on Monday.
The chief forecaster at the VAAC in France said the eruption at the Dubbi volcano began at around 2100 GMT on Sunday evening, sending a large plume up to 13 kilometers (8 miles) high.

IrishWeatheronLine - Best data to this moment; Congratulations Peter O'Donnell!

The Anabro (Nabro) volcano in the Northern Red Sea Region of Eritrea in Africa has erupted sending an ash plume more than 15 kilometres into the sky.

Part of the Afar Triangle, the stratovolcano is one of many volcanic caldera complexes in the north easternmost part of the East African Rift valley region. It is located in the Danakil Depression, close to Eritrea’s border with Ethiopia and north of Djibouti, and has not erupted in at least 150 years.

The volcano erupted at 2103 GMT Sunday evening. The Volcanic Ash Advisory Center (VAAC) said Monday that the 5,331 ft volcano has resulted in a large ash plume of up to 13 kilometres (8 miles) high.

The eruption was preceded by seven moderate earthquakes yesterday afternoon. A 5.6 magnitude quake at 9.03 signalled the start of the eruption. The quake was centred 48 km south of the town of Edd (pop 11,259) and 199 km southwest of the city of Al-h’udaydah (pop 617,871). A 4.6 magnitude quake followed less than 35 minutes later.

The ash cloud from the volcano could potentially cause some disruption to air traffic in the region. According to Irish Weather Online senior forecaster Peter O’Donnell, the ash cloud is heading west towards Sudan. “The eruption happened in Nabro, a stratovolcano that has not erupted in historic times. (some early reports mention Dubbi or Dubbo to the north but satellite imagery confirms the source as Nabro). Potentially, there could be impacts on visibility and optics over at least parts of southern Europe and west Africa, the Middle East … but there would be no direct impacts on Ireland from present information.”

The largest known historical eruption in Africa occurred on May 1861 when the Dubbi volcano, also located in Eritrea, showered maritime traffic in the Red Sea with pumice and plunged coastal settlements into darkness

AS OF 11h00 FIRST NEWS CONFIRMED IN ERITREA:
Government warn people to wear masks or cover face with cloth and protect thenselves against breathing ash into lungs!
11h30 MereoSat published:Meteo France Ash Map

Note: Eritrea was until recently France 'colony' and French is still the second official language there after Arabic.

Of all sites reporting; best info still coming from the original wistle blowers: Earthquake-Report
Congratulations to them!

Unless some very interesting developments; this is my end on Eritrea Volcano here!

reply to post by muzzy

Thanks for the maps Muzzy. It looks like the fault is spreading even further east
judging by the map of today alone. Although worriesome, it will be interesting to see where the next 6+ occurs.

reply to post by Aromaz


While I'm finding your input interesting and worthwhile, perhaps it would be better placed in the Volcano Watch thread as there has been little discussion of recent activity over there and your input I think would be welcomed.

Originally posted by zenius
reply to post by Aromaz

 

While I'm finding your input interesting and worthwhile, perhaps it would be better placed in the Volcano Watch thread as there has been little discussion of recent activity over there and your input I think would be welcomed.

Thanks Zenius, I am aware and following there too. For me this started off as the Earthquake and developed to the Volcano. Until about two hours ago there were no other confirmations that this was in fact an volcanic eruption - except for our postings here and on Earthquake-report.com. In one post I stated maybe better to keep the sequence here. Now I am off this Eritrea subject; unless something else very interesting develops. Any futher postings I will do on Vocano Watch since tt will be new lines of info - IF.

Check out the depth on this most recent one?????



Magnitude 5.4 - FIJI REGION

2011 June 13 12:46:00 UTC

Versión en Español
Details
Maps
Scientific & Technical
Tsunami



Earthquake Details
This event has been reviewed by a seismologist.



Magnitude

5.4



Date-Time

Monday, June 13, 2011 at 12:46:00 UTC
Tuesday, June 14, 2011 at 12:46:00 AM at epicenter
Time of Earthquake in other Time Zones



Location

19.186°S, 177.490°W



Depth

563.5 km (350.2 miles)



Region

FIJI REGION



Distances

205 km (127 miles) NE of Ndoi Island, Fiji
321 km (199 miles) NW of NUKU`ALOFA, Tonga
374 km (232 miles) W of Neiafu, Tonga
2100 km (1304 miles) NNE of Auckland, New Zealand




Location Uncertainty

horizontal +/- 17 km (10.6 miles); depth +/- 11.2 km (7.0 miles)



Parameters

NST=154, Nph=160, Dmin=497.6 km, Rmss=0.72 sec, Gp= 79°,
M-type=body wave magnitude (Mb), Version=6



Source

USGS NEIC (WDCS-D)




Event ID

usc00046ep

reply to post by freetree64


Subduction...

My, My, My - Busy, Busy, Busy-

6.2 2011/06/13 14:31:17 2.516 126.438 13.7 MOLUCCA SEA

Kinda large for the area no?

Source

Hope all you folks down under are faring well!

and Volcanoes too !!!!!

and my little girls last day of high school

p.s. - thank you puterman for the heads up on the dial up!!!

reply to post by Anmarie96


PDF package for the Molucca Sea quake

usc00046gi.zip

Something amiss here folks! I'm not sure which Thread to put this on as it covers at least 3 so tag.

Think with me for a moment. We have not had much activity in Africa for a number of months then, out of left field we get a six hour period:

MAG UTC DATE-TIME y/m/d h:m:s LAT deg LON deg DEPTH km Region
4.6 2011/06/12 21:41:57 13.309 41.668 15.3 ERITREA - ETHIOPIA REGION
4.5 2011/06/12 21:37:14 13.234 41.806 15.0 ERITREA - ETHIOPIA REGION
5.7 2011/06/12 21:03:23 13.530 41.625 9.9 ERITREA - ETHIOPIA REGION
5.7 2011/06/12 20:32:40 13.460 41.688 10.1 ERITREA - ETHIOPIA REGION
4.8 2011/06/12 19:44:16 13.369 41.644 9.9 ERITREA - ETHIOPIA REGION
4.7 2011/06/12 19:37:42 13.316 41.611 10.1 ERITREA - ETHIOPIA REGION
5.0 2011/06/12 19:21:45 12.476 41.748 10.0 ETHIOPIA
4.5 2011/06/12 18:01:19 12.817 41.933 10.1 ETHIOPIA
4.7 2011/06/12 17:47:20 13.538 41.588 10.0 ERITREA - ETHIOPIA REGION
4.8 2011/06/12 17:18:09 13.381 41.764 9.9 ERITREA - ETHIOPIA REGION
4.3 2011/06/12 16:33:11 13.507 41.722 10.0 ERITREA - ETHIOPIA REGION
4.8 2011/06/12 16:24:44 13.436 41.682 10.0 ERITREA - ETHIOPIA REGION
4.7 2011/06/12 16:12:02 13.397 41.734 10.0 ERITREA - ETHIOPIA REGION
4.5 2011/06/12 16:09:30 13.443 41.696 2.9 ERITREA - ETHIOPIA REGION
5.1 2011/06/12 15:37:05 13.458 41.684 10.0 ERITREA - ETHIOPIA REGION

Source

Then, Zip (they are upping the numbers 2 - 5.7?) not a peep. Strange....and a Volcanic Eruption to boot!. I would assume (hate that word) with that kind of shaking "and" and eruption, there would/should be multiple - at least smaller quakes happening.

Kinda holding my breathe - IMHO something BIG is brewing here?

4.7 aftershock early this morning Port Hills, Christchurch
www.geonet.org.nz...

Re the 5.5 and the 6.0 yesterday NZST, interesting on the siesmos how the Rata Peaks station (136km away) shows a larger trace than McQueens Valley station (17km away)
Must be something to do with the sensitivity (settings) of the siesmograph




heres an image of the Rata Peaks off BUD, I've marked 3 quakes, the 4.7 this morning just a tiddler in comparison to the 5.5 and the 6.0

Original www.iris.edu...

Map showing Rata Peaks and McQueens Valley stations in relation to the earthquakes yesterday

reply to post by Anmarie96

USGS are useless for anything under 4.5 globally
have a look at EMSC, they have more quakes

www.emsc-csem.org...

reply to post by muzzy


Yes,this I know but - they have only 1 - 3.0 since the list I posted. ?? I don't like it. I hope their expedition crew is going to set up some instruments -- and --- a webcam

Originally posted by Aromaz
sorry, was supposed to be posted hours ago but then accounting came to upset my Taxable Peace!

Maybe my 'seeing' on the maps is not so far outrageous as I thought. I did a bit more research and do actually find quite a number of people, including 'Learned Elders' that are talking, writing and warning of imminent volcanic activity from old volcanoes SW of ChCh. One Dr. Mirco Poletto even from Italy.

I also saw there were complaints and lab confirmations of periodic Sulphur smells since February. They said 'broken sewerage' Everybody in all of IndoChina knows when you smell Sulphur you look, listen and never sleeps until you are very far away. I found even reference to some yellow powder type of substance found around ChCh in February/March - but that was said to be polen!

Pollen is common around those times.
Some of the smell is due to anoxic material coming to the surface. Heck, the estuary has really really stinky anoxic sediment that I have worked with on a regular basis, drying, sieving, sizing etc.

Personally, I will trust the people who have studied these Banks Peninsula Volcanic Field their full careers. They won't reactivate, after c. 5 million years and the sulphur smells and hot springs are due to the geothermal gradient and water percolating. They are not related to magmatic activity. This from a personal communication with a recent PhD candidate who studied the Lytellton Volcanic field. His supervisors agreed with his outcomes and again they would reiterate that the volcanic field is not reactivating.

Similarly I find it exceedingly unlikely that the c. 96 million year old volcanoes of the foothills (Mount Somers, etc) will reactivate. The tectonic regime has changed since then and they are well and truly extinct.

add Indonesia/Sulawesi

reply to post by PuterMan


Since very unusually USGS have changed ALL the pages from 6.2 to 6.4 for the Molucca Sea (normally they only do the front page) I have re-done the whole thing.

usc00046gi.zip - Molucca Sea 6.4 PDF package - revised.

The Internet is SO slow at present it has taken well over an hour to do that!

reply to post by PuterMan


Almost like dial up - stinks don't it -

still wonderin bout Africa! Something not right there - I understand the rift and the whole thing to be short about it - Something really amazing happening there for sure!

Again, hope all my buddies and those down in NZ are okay. Odd that we have not so much of interest of late and then - pow - 2 in 1. :-( -

OK, I am NOT sounding the alarm bells and blowing the wistle - well, not yet!

Sumatra:
14 June 00h08 UTC = 5.3 Mag = 22 km deep
14 June 03h01 UTC = 5.4 Mag = 8.2 km deep

Yes I know, in past 40 years there were at least 40 quakes in that immediate region above 4.5 mag.
Toba lake temperature rose nearly 1.5 degrees Celsius in past two years. These quakes are on the Southern rim of the old super volcano; also the area suspected of the youngest lava flow. No need for fear.

quake out to the west of Christchurch now, Heron Lake Fault, Ashburton Lakes area.
There was one there on the 8th as well, a 3.179ML, but on the other side of Heron Lake

Reference Number 3529424
Universal Time June 14 2011 at 4:16
NZ Standard Time Tuesday, June 14 2011 at 4:16 pm
Latitude, Longitude 43.48°S, 171.14°E
Focal Depth 5 km
Richter magnitude 4.8
Region Canterbury
Location
40 km north-west of Methven
50 km north of Peel Forest
70 km north-west of Ashburton
120 km west of Christchurch

www.geonet.org.nz...

USGS has it (even though its below the 4.5 threshold) as 4.2mb
earthquake.usgs.gov...

32 quakes in the past 24 hrs in NZ, yikes!