Manifestations of the tsunami on November 15, 2006, on the central Kuril Islands and results of the runup heights modeling

Левин, Б. В.; Кайстренко, В. М.; Рыбин, А. В.; Носов, М. А.; Pinegina, Tatiana K.; Razzhigaeva, N. G.; Sasorova, E. V.; Ганзей, К. С.; Ivelskaya, T. N.; Kravchunovskaya, Ekaterina A.; Kolesov, S. V.; Evdokimov, Yu. V.; Bourgeois, Joanne; MacInnes, Breanyn; Fitzhugh, Ben

doi:10.1134/s1028334x08020335

Cited by 19 publications

(6 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the near‐field amplitudes of 19 and 20 m are reported for Simushir Island in the southwest and Matua Island in the northeast along the Kurile island arc, respectively. Smaller values are reported for islands in between [e.g., Levin et al , 2008]. …”

Section: The 15 November 2006 Kurile Earthquakementioning

confidence: 99%

On the deformation cycle of a strongly coupled plate interface: The triple earthquakes of 16 March 1963, 15 November 2006, and 13 January 2007 along the Kurile subduction zone

Raeesi

Atakan

2009

J. Geophys. Res.

View full text Add to dashboard Cite

The great plate interface Kurile earthquake of 15 November 2006 (Mw = 8.3) was immediately followed by normal aftershocks in the outer rise of the central Kurile subduction zone. Two months later at a distance <50 km from this event the 13 January 2007 (Mw = 8.1) earthquake with a pure normal mechanism occurred in the outer rise of the central Kurile. The 15 November 2006 earthquake ruptured an area of 280 × 150 km2 with maximum slip of almost 7 m, while the 13 January 2007 earthquake ruptured an area of 240 × 40 km2 with a maximum slip of almost 14 m. These two significant events were preceded by a major reverse earthquake on 16 March 1963 (Mw = 7.7) that took place close to the location of the 13 January 2007 earthquake. These very different earthquakes demonstrate the different stages of the deformation cycle along strongly coupled plates at the central Kurile arc and present a rare case of stress regime reversal over a short time span. In order to understand the details of these three earthquakes, we inverted for the source rupture processes of the earthquakes and delineated the location and dimension of asperities. The role of gravity and topography anomalies and their correlation to the asperity distribution as well as the long‐term seismicity is studied in detail. Using trench‐parallel Bouguer anomaly, we have identified the differences in the asperities and the location of larger normal outer rise aftershocks as well as the location of 13 January 2007 earthquake. We also show that the long‐term seismicity of the central Kurile arc is confined to the intraslab and not the plate interface. The static stress transfer for these earthquakes showed that the stress on optimally oriented thrust faults is increased in the northeastern part of the rupture area of the 15 November 2006 earthquake. Absence of major and great earthquakes to the northeastern immediate vicinity of the rupture area of the 15 November 2006 earthquake supports the hypothesis that this area is mature for the next strong earthquake along the Kurile arc.

show abstract

Section: The 15 November 2006 Kurile Earthquakementioning

confidence: 99%

On the deformation cycle of a strongly coupled plate interface: The triple earthquakes of 16 March 1963, 15 November 2006, and 13 January 2007 along the Kurile subduction zone

Raeesi

Atakan

2009

J. Geophys. Res.

View full text Add to dashboard Cite

show abstract

“…Local tsunamis for the 2006 event are computed to have been from 2 to 4 m [ Rabinovich et al , 2008], but there are no local tide gauge recordings. Biological expeditions to the region have documented tsunami erosion effects on several islands of the central Kurils, with peak tsunami runups for the 15 November 2006 event of 15–20 m on Matua and Simushir islands [ Levin et al , 2008; MacInnes et al , 2007]. Geomorphic evidence for prior large tsunami erosion events in the region supports the notion of strong seismic coupling in the gap [ Pinegina et al , 2007].…”

Section: Introductionmentioning

confidence: 97%

The 2006–2007 Kuril Islands great earthquake sequence

et al. 2009

View full text Add to dashboard Cite

The southwestern half of a ∼500 km long seismic gap in the central Kuril Island arc subduction zone experienced two great earthquakes with extensive preshock and aftershock sequences in late 2006 to early 2007. The nature of seismic coupling in the gap had been uncertain due to the limited historical record of prior large events and the presence of distinctive upper plate, trench and outer rise structures relative to adjacent regions along the arc that have experienced repeated great interplate earthquakes in the last few centuries. The intraplate region seaward of the seismic gap had several shallow compressional events during the preceding decades (notably an MS 7.2 event on 16 March 1963), leading to speculation that the interplate fault was seismically coupled. This issue was partly resolved by failure of the shallow portion of the interplate megathrust in an MW = 8.3 thrust event on 15 November 2006. This event ruptured ∼250 km along the seismic gap, just northeast of the great 1963 Kuril Island (Mw = 8.5) earthquake rupture zone. Within minutes of the thrust event, intense earthquake activity commenced beneath the outer wall of the trench seaward of the interplate rupture, with the larger events having normal‐faulting mechanisms. An unusual double band of interplate and intraplate aftershocks developed. On 13 January 2007, an MW = 8.1 extensional earthquake ruptured within the Pacific plate beneath the seaward edge of the Kuril trench. This event is the third largest normal‐faulting earthquake seaward of a subduction zone on record, and its rupture zone extended to at least 33 km depth and paralleled most of the length of the 2006 rupture. The 13 January 2007 event produced stronger shaking in Japan than the larger thrust event, as a consequence of higher short‐period energy radiation from the source. The great event aftershock sequences were dominated by the expected faulting geometries; thrust faulting for the 2006 rupture zone, and normal faulting for the 2007 rupture zone. A large intraplate compressional event occurred on 15 January 2009 (Mw = 7.4) near 45 km depth, below the rupture zone of the 2007 event and in the vicinity of the 16 March 1963 compressional event. The fault geometry, rupture process and slip distributions of the two great events are estimated using very broadband teleseismic body and surface wave observations. The occurrence of the thrust event in the shallowest portion of the interplate fault in a region with a paucity of large thrust events at greater depths suggests that the event removed most of the slip deficit on this portion of the interplate fault. This great earthquake doublet demonstrates the heightened seismic hazard posed by induced intraplate faulting following large interplate thrust events. Future seismic failure of the remainder of the seismic gap appears viable, with the northeastern region that has also experienced compressional activity seaward of the megathrust warranting particular attention.

show abstract

“…However, differences in the nature of the seismic source led to significant differences in the parameters of the tsunami waves that were generated, in particular in the sign of the first wave that propagated into the open ocean: positive for the 2006 tsunami and negative for the 2007 tsunami. Based on an analysis of a number of tide gauges data, tsunami waveforms and DART records, it was found that, for the far field zone, the wave heights during the 2006 event were significantly higher than for the 2007 event (Ivanova et al, 2017;Levin et al, 2008;MacInnes et al, 2009). For the near zone, it is impossible (from the near-field data) to separate the run-ups for the two tsunamis, as surveys were made well after both events.…”

Section: Methodsmentioning

confidence: 99%

Tsunami Generation Efficiency of the 1994, 2006 and 2007 Kuril Islands Earthquakes

Kulikov

Ivanova

2021

Pure Appl. Geophys.

View full text Add to dashboard Cite

generated trans-oceanic tsunamis that were recorded over the entire Pacific Ocean. The tsunami sources had significantly different geometries, which led to different impacts in the near-field and far-field zones. We used numerical models to investigate the source efficiency and resulting wave directivity of the three tsunamis. The tsunami models were validated and calibrated using field survey data from the Central Kuril Islands and deep-ocean bottom pressure records in the North Pacific. Using the full energy flux distribution, we conclude that the source of the 2007 event had the most well-defined energy flux directivity and that the tsunami energy radiation from the 1994 event was the most isotropic. Radiation patterns of each source clearly show the fraction of wave energy radiated into the open ocean, as well as that which penetrated into the Sea of Okhotsk through the Kuril Straits or was captured by the shelf and spread from the source area along the Kuril Ridge. We find a noticeable increase in the period of the leading wave emitted from the end of the elongated tsunami sources compared to the period of the waves formed in the transverse direction. The onshore-directed energy flux is shown to be a key factor controlling tsunami amplitudes at the coast.

show abstract

Manifestations of the tsunami on November 15, 2006, on the central Kuril Islands and results of the runup heights modeling

Cited by 19 publications

References 0 publications

On the deformation cycle of a strongly coupled plate interface: The triple earthquakes of 16 March 1963, 15 November 2006, and 13 January 2007 along the Kurile subduction zone

On the deformation cycle of a strongly coupled plate interface: The triple earthquakes of 16 March 1963, 15 November 2006, and 13 January 2007 along the Kurile subduction zone

The 2006–2007 Kuril Islands great earthquake sequence

Tsunami Generation Efficiency of the 1994, 2006 and 2007 Kuril Islands Earthquakes

Contact Info

Product

Resources

About