Centre Sismologique Euro-Mediterraneen European-Mediterranean Seismological Centre Rapid Determination of Source Parameters operated at LDG (Paris) and IGN (Madrid) ********************************************************************* *********************** ALERT MESSAGE **************************** ********************************************************************* WARNING : These parameters are preliminary and subject to revision. Location and magnitude estimations may be revised if necessary in an INFORMATION message. _____________________________________________________________________
EARTHQUAKE on 19/03/2009 at 18:17 (UTC) TONGA REGION 182 km S Ohonua MAGNITUDE: Mw 7.8 Data provided by: BGSG GFZ NEIC PTWC Latitude = 22.97 S Longitude = 174.76 W Origin Time = 18:17:36.2 (UTC) Depth = 10 Km RMS = 1.22 sec Gap = 58 degrees 95% confidence ellipse: - Semi major = 10.2 Km - Semi minor = 5.5 Km - Azimuth of major axis = 124 degrees Number of data used = 93 Preliminary location computed on Thu Mar 19 18:36:54 2009 (UTC) Done by Julien VERGOZ Comments : Message number: 1165 All magnitudes estimations : Mw7.6 (BGSG) M 7.7 (GFZ) M 7.9 (NEIC) Mw7.7 (PTWC) P.S.: For additional information, please contact EMSC at: - Email: [email protected] - Web : http://www.emsc-csem.org (maps available) - Fax : 33 1 69 26 70 00 -- Posted By Breaking News to Break News at 3/19/2009 08:37:00 PM
