Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array

Details Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005geoji.162..516g&link_type=abstract

Geophysical Journal International, Volume 162, Issue 3, pp. 516-524.

Computer Science

Sound

5

Scientific paper

The seismicity of the northern Mid-Atlantic Ridge was recorded by two hydrophone networks moored in the sound fixing and ranging (SOFAR) channel, on the flanks of the Mid-Atlantic Ridge, north and south of the Azores. During its period of operation (05/2002-09/2003), the northern `SIRENA' network, deployed between latitudes 40° 20'N and 50° 30'N, recorded acoustic signals generated by 809 earthquakes on the hotspot-influenced Reykjanes Ridge. This activity was distributed between five spatio-temporal event clusters, each initiated by a moderate-to-large magnitude (4.0-5.6 M) earthquake. The rate of earthquake occurrence within the initial portion of the largest sequence (which began on 2002 October 6) is described adequately by a modified Omori law aftershock model. Although this is consistent with triggering by tectonic processes, none of the Reykjanes Ridge sequences are dominated by a single large-magnitude earthquake, and they appear to be of relatively short duration (0.35-4.5 d) when compared to previously described mid-ocean ridge aftershock sequences. The occurrence of several near-equal magnitude events distributed throughout each sequence is inconsistent with the simple relaxation of mainshock-induced stresses and may reflect the involvement of magmatic or fluid processes along this deep (>2000 m) section of the Reykjanes Ridge.

Affiliated with

Also associated with

No associations

Rating

Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Long-term seismicity of the Reykjanes Ridge (North Atlantic) recorded by a regional hydrophone array will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-853477