While the unusually strong earthquake swarm under El Hierro Island continues, harmonic volcanic tremor has reappeared short time ago at about 16h10 UTC. The tremor, a low-frequency ground vibration, is thought to be caused by moving magma. It had been strong yesterday and correlated well with a southward propagation of earthquake locations, suggesting that magma at about 20 km depth flew from underneath the El Golfo area towards the EL Julan (south) coast, in a similar way as before the Oct 2011 eruption, but became blocked there, and did not reach the southern rift zone near La Restinga. After the cease of tremor in the afternoon, earthquakes still continued at high rate, marking a record figure with over 180 quakes larger than M2 yesterday alone, and more than 150 quakes larger than M1.5 so far today. In other words, pressure continued to cause wide-spread rock fracturing underground and cause small intrusions of fluids. Now, the re-appearance of tremor could mean that magma is moving again somewhere underneath the island. Where to and whether or not it might reach the surface and initiate a new eruption is difficult to know at the moment. It is essential to continue to monitor location and magnitude of earthquakes.
Targeting the leading edge of an unnumbered Coronal Hole on the solar corona that is situated at (43-46°N latitude), this feature may be indicative of a possible (6.2-6.5 Magnitude) earthquake in one of these listed locations during this watch period:
Northern Italy, Bulgaria, Romania or Off The Coast Of Oregon Time Frame suggests May 26-28.
Targeting the rear flank of this unnumbered Coronal Hole which may represent a potential (6.7 Magnitude) earthquake towards the end of this watch. Deep characteristics with symmetry to the earth indicate an area to (35-39°N) Latitude would be most at risk. Possible locations that may be in line for this earthquake are:
Honshu Japan, Greece, Western Turkey, Hindu Kush Region Afghanistan or Tajikistan Time Frame Jun 29-30
6.1 EARTHQUAKE - EAST COAST OF KAMCHATKA, RUSSIA June 24, 2012
A magnitude 5.9 earthquake has struck NORTHERN SUMATRA, INDONESIA at a depth of 97.4 km (60.5 miles), the quake hit at 04:34:53 UTC Saturday 23rd June 2012 The epicenter was 107 km (67 miles) Southwest from Medan, Sumatra, Indonesia No Reports of Damage or Injuries at this time