Santorini comes under close observation after Crete rattled by second 5.2 earthquake

 
January 27, 2012GREECECrete has been hit with a second 5.2 earthquake in 24 hours. After a serial of strong earthquakes on 26 January the Greeks begin to take the seismic development around an under Santorini serious. Today there have been several earthquakes south-west of Santorini on the Christiana-Kameni-Koloumbos-Fault starting with 5.2 R, 4,2 R end 3,2 R. It is a logic development that helps a magma chamber uprising. The status of the Nea Kameni volcano remains still at “yellow”, but we have to expect something. The team of VolcanoDiscovery is already prepared for a possible volcanic activity. It is not a danger to the tours, because there is a safe distance from the island Nea Kameni (the volcano) to the main part of the island (Thira). We watch the seismic activity on a daily base and will start an excursion from the time we will see a suddenly much higher rate of earthquakes on the island. –Volcano Discovery
This entry was posted in Earth Changes, Earth Watch, Earthquake Omens?, High-risk potential hazard zone, Seismic tremors, Signs of Magnetic Field weakening, Time - Event Acceleration, Volcanic Eruption, Volcano Watch. Bookmark the permalink.

12 Responses to Santorini comes under close observation after Crete rattled by second 5.2 earthquake

  1. luisport says:

    NewEarthquakeEarthquakes Tsunamis
    5.3 earthquake, northern Italy. Jan 27 3:53pm at epicenter (13m ago, 35km SSW of Parma, depth 60km). http://j.mp/w0XOqg

    há 8 minutos

    Like

  2. …and the plot thickens. This must be a translation, but I am curious about the statement “It is a logic development that helps a magma chamber uprising.” If I am reading this statement correctly, I would take it that it is a logical assumption that magma chambers begin to rise after fault quakes. I thought most geologists tend to discount that theory. From the looks of the map, it does not need anything to help it though…there will certainly be some sort of eruption be it months or years.

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  3. luisport says:

    NewEarthquakeEarthquakes Tsunamis
    4.7 earthquake, Dodecanese Islands, Greece. Jan 27 9:06pm at epicenter (2h:07m ago, 86km N of Iraklion, depth 27km). http://j.mp/wVGgVV

    há 2 minutos

    Like

  4. nanoduck says:

    Amazing. So many volcanoes rumbling to life and earthquakes becoming more frequent, and in places that seldom get them.

    Like

  5. olivia says:

    greek tv had a seismologist reporting today that they have noticed a swelling in the area of the crater

    Like

  6. luisport says:

    NewEarthquakeEarthquakes Tsunamis
    4.5 earthquake, Dodecanese Islands, Greece. Jan 28 12:50pm at epicenter (12m ago, 87km N of Iraklion, depth 10km). http://j.mp/ApQidr

    há 2 minutos

    Like

  7. luisport says:

    And news from Santorini; after the nearby earthquakes the scientists at least decided to speak up: http://www.volcano-news.com/view_news/4715/Santorini-volcano-Greece-strong-seismic-swarm-continues-scientist-speak-out-finally.html

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    • luisport says:

      The highly unusual swarm of earthquakes SW of Santorini on the main fault zone that also defines the volcanic vents of the region continues with about 10 quakes larger than magnitude 2 during the past 24 hours. 2 of the quakes were magnitude 4 and 4.7, respectively.
      Greek media start to pick up the story and become increasingly interested:

      Today the wall of silence seems to be falling as a major Sunday newspaper has exclusive interviews with a number of Greek seismologists and geologists on the matter and some information is now public.
      1. Inflation
      From 1993 until 2010 there was deflation in the caldera of about 1cm/year, since the beginning of 2011 that has changed to inflation centered at a radius of 15 km on the north part of the caldera, rapid episodes of inflation have been recorded at intervals that coincide with bursts in seismic activity. Since August the intensity of the phenomenon warranted a rise to alert level 4 (red), where it has remained ever since.

      2. Magma column
      A displacement of 107 cubic meters has been located 1km north of the central island of Nea Kameni at a depth of 4 km, it is hypothesized that it is a magma intrusion, located right at the center of the most seismicity active part of the caldera.

      3. CO2.
      Co2 levels have jumped to 39 tonnes/day along with the emission of other gasses, a rising gas column has been observed outside the port of Thirassia in the caldera (the island on the west rim).

      4. Water temperature.
      The rise in sea water temperature in the caldera has been confirmed.

      Most of the Greek scientists have brushed any concerns saying that conditions are normal and that has happened before, Euthimios Lekkas, geologist from Athens University, even said on TV that there is no danger even of a large earthquake in the vicinity of the island, the next day there were 3 earthquakes magnitude 5 and above, 50 km to the SW at the other end of the fault line.
      Noticeable exception, foreign geologists have a very different opinion, Michelle Parks, a geologist from Oxford, mentioned that the evidence points to something important, there is volcanic activity and the volcano is now potentially active at depth.
      Consensus is that the volcano has woken up in early 2011, but opinions differ mainly on the lines of nationality of the scientists.

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  8. luisport says:

    This is from Wired.com Eruptions blog:

    Santorini, Greece

    The seismicity at Santorini in Greece continues – however, the situation has become confusing as there have also been a number of earthquakes nearby between Santorini and Crete that have gotten people’s attention as well. However, regarding the volcano in question, the most important news was some of the first pieces of information about what might be happening at Santorini. An article in a Greek newspaper this weekend has information from Greek scientists watching the volcano. The article mentioned that the caldera has seen ~1 cm/yr deflation between 1993-2010, but since then, the caldera has inflated slightly. The inflation is to the north side of the caldera and seems to be correlated with seismic swarms. Carbon dioxide emissions are currently at 39 tonnes/day, which is relatively low in the grand scheme of volcanoes (usually we think hundreds of tonnes/day), but is a change for Santorini. The seawater in the caldera has also been warming, although the extent of this warming is not mentioned. Finally, in the most ambiguous piece of information, an intrusion has been inferred at 4 km depth north of Nea Kameni where the seismicity is centered. The volume has been listed at “107 cubic meters”, however I am fairly confident that it should be 107 cubic meters, which is a fairly small volume. Take all of this news in total, and it does appear that magma is intruding under Santorini – the question remains: will it erupt and if so, how large of an eruption might we expect.

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  9. Tonic says:

    Santorini is averaging about two earthquakes an hour, and not very deep.

    http://bbnet.gein.noa.gr/NOA_HL/

    http://www.emsc-csem.org/#2

    Like

  10. Agnes says:

    Since the 28th May we are experiencing in Agios Nikolaos, Crete around 10 quakes / trembling per day. 4 days with earthquakes/trembling around 3.0 and 3.2 magnitude. Today (1st June) it’s quiet but sometimes we can feel the trembling underground. All the quakes are around the Lake Voulismeni, which might be (it’s believed) connected with Santorini Volcano – the info can be found in the internet.

    Like

    • The entire Earth is being awakened by the force of fire and Santorini is inflating. I’m monitoring events in the Mediterrean very closely. Take care of yourself Agnes and please stay in touch and keep me updated.

      peace and love,
      Alvin

      Like

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