A strong X 2.1 class solar flare occurred about an hour ago (at 15:27 UT). Here is a brief summary of possible related seismic effects.
The areas most likely to be affected (seismically and otherwise) from strong solar flares are sub-solar and anti-solar regions and areas above 50N and below 50S. Generally a watch includes areas within 30 degrees longitude of the sub- and anti-solar points. In this case, the sub-solar region is 51.8W and 128.2E. The strongest effects normally appear to occur nearest the sub- and anti-solar points, so seismicity might be expected to increase in the region along the eastern seaboard of the U.S., the Caribbean and the western coastline of South America and along the region from Japan to Indonesia for the next several days. Since this is one of the strongest flares in months, areas along the geomagnetic equator may also be affected - suggesting Indonesia, the Philippines and northern South America as the most likely areas of strong activity.
X-flares are normally followed by CME events which arrive at the earth several days later. These also appear to be seismo-effective. There is commonly a 3-7 day delay between X-flares and subsequent large or great earthquakes, if they occur following such phenomena.
The geomagnetic storms precipitated by X-flares and CME are most likely to affect areas at high latitudes such as Alaska, the northern U.S., New Zealand, Japan, Kamchatka, Aleutians,
Europe.