A long-period earthquake, originating at Level 4 intensity, has been reported in Sakaiminato, a city in the Tottori Prefecture, Japan. These seismic events, known to last longer than regular quakes, do not create significant damage but their vibration can last for several minutes. This event is under scrutiny as researchers aim to evaluate potential risks and prepare for similar future occurrences.

Earthquakes are relatively common in Japan due to its location in the Pacific Ring of Fire. However, the concern rises when severe or unusual activities like long-period earthquakes occur, as it often raises concerns over safety and infrastructure due to the possibility of stronger quakes following. The event is closely monitored by the Japan Meteorological Agency, and steps are taken for public safety, including alerts and potential evacuation orders.

Similar to the US and EU, Japan has a high level of disaster preparedness, especially for earthquakes. However, Japan's frequency of seismic activity demands a more comprehensive alert system and more stringent building codes for earthquake resistance. Compared to the US, Japan uses a different scale (the Shindo scale) to measure earthquake intensity which takes into account the local experience of shaking.