Thanks for asking! The image on the left (Cascadia) shows earthquakes from the USGS catalog, starting around 1900 CE. The image on the right (South America) shows earthquakes from a variety of sources, including some large historical events prior to 1900.
Thanks for another interesting report! I always learn new things from your postings. You both have such a broad base of knowledge to even have the 1700 quake is your article AND the associated reports of early settlers and the Japanese tsunami.
Very interesting post. For figure 3, what time period does this record of earthquakes cover? Is it since 1980 same as Figure 5?
Thanks.
Thanks for asking! The image on the left (Cascadia) shows earthquakes from the USGS catalog, starting around 1900 CE. The image on the right (South America) shows earthquakes from a variety of sources, including some large historical events prior to 1900.
Thanks for another interesting report! I always learn new things from your postings. You both have such a broad base of knowledge to even have the 1700 quake is your article AND the associated reports of early settlers and the Japanese tsunami.