Preliminary Results about the Catastrophic Earthquake of 7 September 1999 in Athens, Greece

Papadopoulos, Gerassimos A.; Δρακάτος, Γ.; Papanastassiou, D.; Kalogeras, I.; Stavrakakis, G.

doi:10.1785/gssrl.71.3.318

Cited by 72 publications

(44 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…On 7 September 1999, at 11:57:50 GMT, an earthquake of M S =5.9 struck Athens, the capital of Greece (Louvari and Kiratzi 2001;Papadopoulos et al 2000;Pavlides et al 2002;Roumelioti et al 2002Roumelioti et al , 2003Tselentis and Zahradník 2000). The maximum observed intensity was graded at IX MM56.…”

Section: The Athens 1999 Earthquakementioning

confidence: 99%

“…4 The Athens 1999 earthquake isoseismals; Protonotario's isoseismal map is at the right upper corner about 20 km far from the town center. Due to high population density and collapses of residential buildings and factories, 143 deaths and about 800 injuries were reported regardless of the moderate magnitude of the shock (Papadopoulos et al 2000). GINOA gathered 323 macroseismic questionnaires from 16 administrative districts (Monthly Bulletin 1999).…”

Section: The Athens 1999 Earthquakementioning

confidence: 99%

See 1 more Smart Citation

Isoseismal maps drawing by the kriging method

et al. 2007

Self Cite

View full text Add to dashboard Cite

Macroseismic intensity, a useful measure of earthquake effects, is still applied in a wide range of seismological applications like seismic hazard assessments, attenuation relationships, etc. Isoseismals represent the spatial distribution of macroseismic intensities, and their shapes depend on source properties, lithosphere structures, tectonic line orientations, site geology, and topography. The applications ask for both the higher number of isoseismal maps, and their standardization and homogenization. The point kriging gridding method for an automatic computer drawing of isoseismal maps was delivered. Smoothing rates and numerical parameters used in the kriging algorithm were tested on macroseismic data of Greek earthquakes representing different tectonic and geomorphological regimes. The optimum kriging default option was defined. Its application for four Greek earthquakes is presented and discussed from the viewpoint of a broad use in recent macroseismology.

show abstract

Section: The Athens 1999 Earthquakementioning

confidence: 99%

Section: The Athens 1999 Earthquakementioning

confidence: 99%

Isoseismal maps drawing by the kriging method

et al. 2007

Self Cite

View full text Add to dashboard Cite

show abstract

“…και Mw = 5.9 σύμφωνα με διεθνή σεισμογραφικά κέντρα, έγινε στις 11:56:50.5 GMT ( 14:56:50.5 τοπική ώρα). Η επαναπροσδιορισθείσα εστία από τους Papadopoulos et al ( , 2000Papadopoulos et al ( , 2001) έχει συντεταγμένες 38,08°Ν / 23,58°Ε και βάθος 17 km , δηλαδή η επικεντρική απόστα ση του Εθνικού Αστεροσκοπείου στο ιστορικό κέντρο της Αθήνας είναι Δ ~ 18 km (Σχήμα 1). Οι Papadimitriou et al (2000) προσδιόρισαν παραπλήσιο επίκεντρο αλλά μικρότερο εστιακό βάθος ( ~ 8 km).…”

Section: εισαγωγηunclassified

“…Οι Papadopoulos et al ( ,2000 καθόρισαν τον μηχανισμό γένεσης του κύριου σεισμού και 38 μετασεισμών του με τη μέθοδο των πρώτων αποκλίσεων των κυμάτων Ρ από καταγραφές ελλαδικών σταθμών . Ο μηχανισμός γένεσης του κύριου σεισμού (ΝΡ1: 293° / 51° / -90° , ΝΡ2: 1137 397 -90°) είναι παρόμοιος με αυτόν που προσδιορίστηκε από μακρινές καταγραφές και συμφωνεί με τον μηχανισμό που προσδιόρισαν και άλλοι ερευνητές (π.χ.…”

Section: μηχανισμος γενεσης του κυριου σεισμου και των ισχυρων μετασεunclassified

Instrumental and field observations for the determination of the seismogenic structure of the 7 September 1999 Athens earthquake

2001

View full text Add to dashboard Cite

The earthquake of 7 Sept. 1999 (Ms= 5.9) that struck the metropolitan area of Athens, occurred only at a distance of '18 NW from the historical center of the city and has been the most destructive shock in modern history of Greece. Therefore, it is of great importance to identify the seismogenic structure. Focal mechanisms of the main shock as well as the lateral and vertical distributions of the aftershocks , determined by several institutes, are consistent in that the main shock was associated with a normal faulting striking WNE-ESE and dipping SW. The only geological faults known in the area to have the geometrical characteristics that are compatible with the seismographic results are the fault of Thriassion Pedion and the Fili fault. We support that the Fili fault, striking 110° - 150° Ν at an observable length of 8-10 Km, has been very probably the seismogenic structure of the Athens earthquake because ( i) it proved to be an active fault as revealed by the striations we observed on several segments of the fault mirror, ( ii) the meizoseismal region as well as the most important ground failures, like local small-scale landslides and rock-falls, all are located on the hanging-wall domain and very close to the surface trace of the fault as it is theoretically expected (e.g. Oglesby et al., 2000), ( iii) we observed a possibly co-seismic displacement by 3-6 cm of the SW (hanging-wall) segment towards SW . On the contrary, the fault of Thriassion Pedion is recognizable in satellite images but in the field it is evident only as a series of alluvium cones which is an evidence of a possibly inactive structure. Moreover, the meizoseismal area and the ground failures observed in association with the Athens earthquake are located in its foot-wall, that is in the domain where strong motion should not expected to occur. In addition, if that fault was the seismogenic one then the earthquake focus would fit the fault geometry only if it was shifted at least 15 km southwestwards. The last possibility that the Athens earthquake was associated with a blind fault is not supported by any kind of instrumental or field evidence.

show abstract

“…Yet, the seismicity which follows the main faulting zones is low (Drakatos et al, 2005). On the contrary, strong historical (Papadopoulos et al, 2000) and recent earthquakes (Makropoulos et al, 1989;Papazachos & Papazachou, 1997) have occurred mainly in the western and northern boundaries of the basin, all associated with a roughly N-S extensional tectonic regime.…”

Section: Introductionmentioning

confidence: 99%

Crustal Movements Along the Nw Hellenic Volcanic Arc From DGPS Measurements

Papageorgiou

2017

geosociety

View full text Add to dashboard Cite

The north-western part of the Hellenic Volcanic Arc was studied by Differential Soussaki and Methana (9±3 mm/yr). A kinematic interpretation based on velocity and strain rates is finally attempted on the basis of the regional tectonics in the Saronikos Gulf. directions of the displacements tend towards NNW to NNE. The results of the horizontal velocities with respect to Europe indicate rates of SW directions, exhibiting higher magnitudes (25-26±2mm/yr) in the western and southern part of the Saronikos Gulf than in its central part (20±7 mm/yr). The horizontal velocities with respect to ITRF2000 showed consistent SE directions with higher rates in Aegina (12±7 mm/yr) than in

show abstract

Preliminary Results about the Catastrophic Earthquake of 7 September 1999 in Athens, Greece

Cited by 72 publications

References 10 publications

Isoseismal maps drawing by the kriging method

Isoseismal maps drawing by the kriging method

Instrumental and field observations for the determination of the seismogenic structure of the 7 September 1999 Athens earthquake

Crustal Movements Along the Nw Hellenic Volcanic Arc From DGPS Measurements

Contact Info

Product

Resources

About