Electronic Supplement to
Automatic Aftershock Forecasting: A Test Using Real-Time Seismicity Data in Japan

by Takahiro Omi, Yosihiko Ogata, Katsuhiko Shiomi, Bogdan Enescu, Kaoru Sawazaki, and Kazuyuki Aihara

This electronic supplement contains seven figures and two tables showing the detailed forecast results for all the considered aftershock sequences and all the forecast time frames.


Tables

Table S1. The information gains and their standard errors of the High Sensitivity Seismograph Network (Hi-net) and Japan Meteorological Agency (JMA) forecasts over the generic model for each sequence and each forecast time frame in the case of the forecast of aftershocks with M > Mc.

Table S2. The same as Table S1 but in the case of the forecast of aftershocks with M >3.95.


Figures

Figure S1. (a) Spatial distribution, (b) MT plot, and (c–f) forecast results for the 2000 Western Tottori aftershock sequence.

Figure S2. The same as Figure S1 but for the 2004 Chuetsu aftershock sequence.

Figure S3. The same as Figure S1 but for the 2005 West off Fukuoka aftershock sequence.

Figure S4. The same as Figure S1 but for the 2007 Noto Peninsula aftershock sequence.

Figure S5. The same as Figure S1 but for the 2007 Off Chuetsu aftershock sequence.

Figure S6. The same as Figure S1 but for the 2008 Iwate–Miyagi Nairiku aftershock sequence.

Figure S7. The same as Figure S1 but for the 2014 northern Nagano aftershock sequence.


Data and Resources

The High Sensitivity Seismograph Network (Hi-net) automatic catalog is provided by the National Research Institute for Earth Science and Disaster Resilience (NIED), which is not available to the public. Registered users can download the real-time hypocenter data of earthquakes in the latest two days from the NIED Hi-net website (https://hinetwww11.bosai.go.jp/auth/hinet_hypolist/?LANG=en), although this list in the website is not exactly the same as the Hi-net automatic catalog (e.g., this list is sometimes manually modified). The Japan Meteorological Agency (JMA) unified catalog is available at the JMA website (http://www.data.jma.go.jp/svd/eqev/data/bulletin/hypo_e.html; last accessed January 2016).

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