A Preliminary Report on the Tecoman, Mexico Earthquake of 22 January 2003 (Mw 7.4) and Its Effects

Singh, S. K.; Pacheco, J. F.; Alcántara, L.; Reyes, Gabriel; Ordaz, Mario; Iglesias, A.; Alcocer, Sergio M.; Gutiérrez, Carlos A. Mortera; Valdés, Carlos; Kostoglodov, V.; Reyes, Carlos; Mikumo, Takeshi; Quaas, R.; Anderson, John G.

doi:10.1785/gssrl.74.3.279

Cited by 44 publications

(39 citation statements)

References 13 publications

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“…The comparison made are important because in the first case Ramirez-Gaytán [23] generate PGA based in a previous model Ramirez-Gaytán [24] when using observed records to compare with synthetics. In the second case Singh [10] use real data, in both cases the results are very similar with the obtained in this study. All mentioned studies correspond at the same tectonic environment.…”

Section: Resultssupporting

confidence: 85%

“…In third row comparison of simulated PGA of Tecoman earthquake from Ramirez-Gaytán [23] versus PGA predicted using the following GMPE: (e) Young's [17], (f) Ordaz [16]. In (e) comparison of real PGA of the Tecoman earthquake using records of stations with distances larger than 50 km versus GMPE of Ordaz [16] from Singh [10]. We made an additional comparison, for Tecoman earthquake Singh [10] used records of stations located at distances larger than 50 km and comparing the PGA versus Ordaz [16].…”

Section: Resultsmentioning

confidence: 99%

“…In (e) comparison of real PGA of the Tecoman earthquake using records of stations with distances larger than 50 km versus GMPE of Ordaz [16] from Singh [10]. We made an additional comparison, for Tecoman earthquake Singh [10] used records of stations located at distances larger than 50 km and comparing the PGA versus Ordaz [16]. In figure 2g it can be seen that the behavior is the same: observed PGAs lie above the curve.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

The Use of Source Scaling Relationships in the Simulation of a Seismic Scenario in Mexico

Gaytán¹,

López²,

Gonzales³

et al. 2013

Engineering Seismology, Geotechnical and Structural Earthquake Engineering

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Section: Resultssupporting

confidence: 85%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

The Use of Source Scaling Relationships in the Simulation of a Seismic Scenario in Mexico

Gaytán¹,

López²,

Gonzales³

et al. 2013

Engineering Seismology, Geotechnical and Structural Earthquake Engineering

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“…The results presented here indicate that the 2003 Armería earthquake occurred on a continental intraplate reverse fault, in contrast to other works that favor faulting along the subduction interface between the Rivera and North American Plates (YAGI et al, 2004;SINGH et al, 2003). We suggest that the Armería shock and its aftershocks could represent partial accommodation of deformation in the continental crust caused by oblique subduction.…”

Section: Discussioncontrasting

confidence: 69%

Using an Enhanced Dataset for Reassessing the Source Region of the 2003 Armería, Mexico Earthquake

Núñez-Cornũ

Rutz-Lopez

Márquez-Ramírez

et al. 2010

Pure Appl. Geophys.

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Abstract-We present a fresh look at the source region of the 22 January 2003 M w 7.4 Armería earthquake, which occurred off the Pacific coast of the state of Colima, Mexico, near the town of Armería. The effects of this earthquake in the neighboring states of Colima and Jalisco were different and stronger than those of previous recent major earthquakes in the region. This earthquake and its aftershocks were recorded by two local telemetered seismograph networks (RESCO and RESJAL). From 22 January to 24 January 2003, no important seismicity was located on the plates interface, or within the Rivera Plate, and most epicenters were located west of the Armería River, which is the western border of the Colima Graben, and is located outside of the Colima Gap region. From 24 January to 31 January, the seismicity recorded by both networks showed a migration in depth, with an almost vertical offshore distribution between 4 and 24 km in depth. For this period, a sevenstation portable digital seismograph network, equipped with threecomponent seismometers, was deployed in the epicentral area to study the aftershock sequence in detail. With this denser network more than 200 M L [ 2.0 aftershocks were recorded. The aftershock foci were deeper than those recorded during the early period and most of them locate on a hypothetical 12°dipping interface between the Rivera and North American Plates. Composite focal mechanism solutions for the aftershocks located during both periods indicate a reverse fault character that changes with time. Analysis of the new dataset still indicates that the earthquake was a shallow intraplate event.

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“…On 22 January 2003, a large earthquake with magnitude M w 7.6 occurred in front of the coast of the Mexican state of Colima, at the southeast end of the 9 October 1995, M w 8.0, Jalisco earthquake fault (Singh et al, 2003;Yagi et al, 2004) (Table 1). This earthquake occurred just in the area of the effective stress influence from the 1995 Jalisco earthquake, eight years after its occurrence, and also from the 1973 earthquake, almost 30 years after the event (Fig.…”

Section: Results From Statistical Analysis and Discussionmentioning

confidence: 99%

Space-Time Clustering of Large Thrust Earthquakes along the Mexican Subduction Zone: An Evidence of Source Stress Interaction

Santoyo

Singh

Mikumo

et al. 2005

Bulletin of the Seismological Society of America

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The spatiotemporal plot of epicenters of large (M s Ն6.9) subduction earthquakes in Mexico (1900 to present day) suggests that these earthquakes cluster in space and time. In this work we test the hypothesis that the coseismic stress transfer may lead to this clustering. For the analysis we estimate the spatial extent of the coseismic Coulomb stress change for these large events and then perform a statistical analysis using the v 2 goodness-of-fit test for the interevent time intervals. We find that there are, at least, two groups of time intervals where the observed frequencies are much higher than that expected from a Poisson model, indicating a bimodal pattern. For the first mode, the observed frequencies for the 0-to 5-year interval becomes about 2.1 times the expectation, with a probability of occurrence of about 30%. These results show that large thrust Mexican earthquakes between 1900 and 2003 are clustered in space and time probably due to stress interactions among them. The second mode includes the time interval of 30-50 years. In the interval of 30-40 years, the observed frequencies become about 1.7 times the expectation and about 1.2 times the expectation for the 40-to 50-year interval. This second mode could be associated with a reloading interval of tectonic stress due to the plate convergence and appears consistent with the long-term recurrence periods of large thrust earthquakes in the Mexican subduction zone.

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A Preliminary Report on the Tecoman, Mexico Earthquake of 22 January 2003 (Mw 7.4) and Its Effects

Cited by 44 publications

References 13 publications

The Use of Source Scaling Relationships in the Simulation of a Seismic Scenario in Mexico

The Use of Source Scaling Relationships in the Simulation of a Seismic Scenario in Mexico

Using an Enhanced Dataset for Reassessing the Source Region of the 2003 Armería, Mexico Earthquake

Space-Time Clustering of Large Thrust Earthquakes along the Mexican Subduction Zone: An Evidence of Source Stress Interaction

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