A magnitude 5.7 earthquake struck Nara Prefecture on the 2nd at approximately 6:28 PM. The tremor reached a maximum seismic intensity of 4 and originated at a depth of about 70 kilometers.
Regional Impact and Intensity
The strongest shaking was concentrated across three prefectures. In Mie Prefecture, intensity 4 was recorded in Owase City, Kumano City, and Kihoku Town. Nara Prefecture saw the same intensity in Gose City, Uda City, Tenkawa Village, and Shimokitayama Village.
Wakayama Prefecture experienced widespread intensity 4 tremors, affecting Gobo City, Yuasa Town, Minabe Town, Hidakagawa Town, Tanabe City, Shingu City, Shirahama Town, Taiji Town, and Kozagawa Town.
Lower levels of shaking were felt across a vast portion of the country. Intensity 3 was recorded in regions including Aichi, Shiga, Kyoto, Osaka, Hyogo, Tokushima, and Kagawa prefectures. Even distant areas, such as parts of Tokyo, Kanagawa, and Miyazaki prefectures, observed intensities between 1 and 2.
Demographic Vulnerability and Risk
Data indicates a significant overlap between the affected areas and high-risk populations. Of the total population exposed to the quake, approximately 13,639,000 people are aged 65 or older, accounting for 29.0% of the total.
This elderly demographic is specifically identified as having a higher risk of damage during seismic events. In some prefectures, this vulnerability is more pronounced; for instance, in Miyazaki Prefecture, 43.5% of the affected population is 65 or older.
Potential Outlook
Given the wide area of impact, local authorities may prioritize wellness checks for the elderly in the hardest-hit regions of Nara, Mie, and Wakayama. Residents in the affected prefectures could see a renewed focus on disaster awareness and the reinforcement of safety protocols.
Because the earthquake was felt as far as Tokyo and Miyazaki, it is likely that citizens across multiple regions will re-evaluate their personal emergency kits and evacuation plans.
Frequently Asked Questions
What was the estimated magnitude and depth of the earthquake?
The earthquake had an estimated magnitude (M) of 5.7 and occurred at a depth of approximately 70 kilometers.
Which areas experienced the maximum intensity of 4?
Intensity 4 was recorded in parts of Mie Prefecture (Owase City, Kumano City, Kihoku Town), Nara Prefecture (Gose City, Uda City, Tenkawa Village, Shimokitayama Village), and Wakayama Prefecture (Gobo City, Yuasa Town, Minabe Town, Hidakagawa Town, Tanabe City, Shingu City, Shirahama Town, Taiji Town, and Kozagawa Town).
How many people were affected by the tremors?
Approximately 47,029,000 people lived in municipalities where a seismic intensity of 1 or higher was observed.
Do you have an updated emergency plan for the elderly members of your household?
