The Noto Peninsula Earthquake, which occurred on New Year's Day 2024, caused coastal uplift of up to about 4 meters, rendering fishing ports non-functional. The marine terrace landform along the Peninsula indicates that uplift has repeatedly occurred with past earthquakes. Assessing the scale of uplift, based on marine terraces, and creating disaster measures are important in forecasting future earthquakes.

From a civil engineering perspective, the Noto Peninsula Earthquake of 2024 caused many natural slope failures near the epicenter fault, but the collapse of many road embankments caused major hindrances to rescue efforts, and damage from the collapse of residential embankments and fill soil and liquefaction was also seen in Kanazawa City, 120 km from the epicenter. We would like to consider the causes of this earthquake by comparing it with the 2007 Noto Peninsula earthquake and consider civil engineering preparedness for earthquakes that are likely to occur in the future.

Until now, it was believed that there were no abnormal phenomena (so-called precursor phenomena) that reliably precede a major earthquake, but the Great East Japan Earthquake has led to the confirmation of changes that were universally manifested just prior to the occurrence of a magnitude 8-class large earthquake. This was the phenomenon of increased ionospheric electron density.