The Cordova daily times., 1922-09-23
EARTHQUAKE IS PREDICTED
 FOR TOXIC

perienced two comparatively severe earthquakes since December 1, but these are as nothing compared to one that is in store for the Japanese capital, according to Dr. F. Omori head of the Imperial Earthquake Investigation Committee, professor of seismology at Tokio Imperial Un- iversity and recognized as one of the worlds greatest authorities on the seismograph. Dr. Omori has worked out a system of cycles based on his research here, showing that the dis aster may come five or six years from now, or maybe not until the end of the next five or six-year pe- riod, and if not then surely at the end of the following period
 GREATEST QUAKE IN 1855
 Tokio's greatest earthquake that is on record is the great upheaval of 1855, which killed 1000 people in Tokio, then Yeddo, and shattered nearly every building in the city. The only really disastrous quake since that time was the shock of 1894, much smaller, and fatal to only 1000 people. The two are the only quakes which originated di- rectly beneath the city in modern times.
 pr. OmOri's charts show the origin of every earthquake felt in Tokio since 1914. Of course a great many tremors are scattered about the country and in the adjacent Pacific Ocean, but for the most part they are recorded into four rather circu- lar groups These groups show that in 1914 nearly every earthquake had it's origin in the mountainous re- gions of Chiba Prefecture, across from Yokohama, at the mouth of the harbor.
 Then the scene shifted to the mountainous section farther inland and northeast of Tokio.
 Dr. Omori's theory is that sooner or later the surrounding country vii be entirely relieved of subtereanear pressure and that the scene vii gradually work back to Tokio, wher the city may expect another very disastrous tremor originating directly | below it. This, however, will not come until the surrounding regions all become quiet.
 But the time that the disaster is to fall is unknown. It may come in 1927 or 1928, possibly not until five or six years after that; but Dr. Om- ori is positive that should the city escape these two periods it will come at the end of the next one, ap- proximately 1889.
 | TREMORS ALTERNATE CLEARLY This deduction is obtained from further research work, which shows that year of minimum violence in Tokio has always been followed in the next year by violent earth quake.
 Dr. Omori pointed to a few ex- amples on the map that reproduced his theory of maxima and minima There was no strong earthquake in 1896, the year of the maximum seismic frequency in Tokio. On the | other hand, the severest quake felt since 1855 was that of June 20, 1894 the preceding year having been one of minimum seismic frequency. Again the quiet of 1883 was followed the next year by great disturbance in Tokio and Yokohama. In 1908 things were again quiet; the next year a severe shake did damage at Yok- ohama. The next maximum was reached in 1915 by string of eighty successive shocks, all slight but fol- lowing rapidly, the combined intens- ity of which formed a high point | on the chart following the low point 1 in 1914. Again, 1921 was kuiet, but the earthquake in Tokio of December 8, 1921, and the one of April 26 combined to make a new maximum high point on the chart.
 Dr. Omori's average from 1876 to 1921 was eighty-seven earthuuakes year, the largest number as he pointed out, being in 1896, when the total was 216, very few of which were detectable without aid of in- StrumentS