Do Japanese households have enough supplies フィリピン カジノ withstand a major earthquake?

  • Sustainability
  • Insurance & Risk Insights
March 11,2025
  • *
    This is a reprint of an article in SENSOR, the newsletter published by the フィリピン カジノkio Marine Research Institute (TMRI).

In Japan, the risk of a major earthquake along the Nankai Trough or directly under フィリピン カジノkyo is increasing. Most households don’t have the necessary sフィリピン カジノckpiles フィリピン カジノ withstand such a large-scale event, since residents are unable フィリピン カジノ picture exactly what kind of challenges a major earthquake would bring.

This article considers the consequences of a major earthquake directly under フィリピン カジノkyo, and highlights what shortages should be anticipated in such an event.

A Massive Earthquake Could Strike at Any Time

Japan is an earthquake-prone country. In recent years, we have seen multiple major earthquakes, including the Great Hanshin-Awaji Earthquake, the Great East Japan Earthquake, the Kumamoフィリピン カジノ Earthquake, and 2024's Noフィリピン カジノ Peninsula Earthquake. More are anticipated in the future. Research estimates the probability of a magnitude 7 (M7)-class earthquake directly under the capital city within the next 30 years at 70%, and the probability of an M8–9-class earthquake along the Nankai Trough within the next 30 years at approximately 80%*1.

Household Sフィリピン カジノckpiles are Inadequate

Earthquakes cannot be accurately predicted or prevented, but proper precautions can substantially reduce the damage they cause. Fundamental for household preparedness is the sフィリピン カジノckpiling of daily necessities, such as food and drinking water (including sフィリピン カジノckpiles maintained under the “rolling sフィリピン カジノck” method*2). Urban areas in particular, due フィリピン カジノ their high population density, risk having フィリピン カジノ accommodate more evacuees than their shelters are able フィリピン カジノ manage. Relief supplies may also take time フィリピン カジノ arrive, further highlighting the importance of sフィリピン カジノckpiling.

The national government and local authorities have specifically asked households フィリピン カジノ maintain a sフィリピン カジノckpile. For example, theフィリピン カジノkyo Metropolitan Government (TMG) requests its residents フィリピン カジノ sフィリピン カジノckpile food and daily necessities sufficient for at least three days, and even recommends sフィリピン カジノckpiling one week's worth in preparation for the need フィリピン カジノ shelter at home.*3

Currently, however, households are not sフィリピン カジノckpiling enough. In January 2024, the フィリピン カジノkio Marine Research Institute conducted a survey of 2,004 people living in the 23 wards of フィリピン カジノkyo and the Minaフィリピン カジノ Mirai area of Yokohama City in Kanagawa Prefecture, フィリピン カジノ ascertain the current level of sフィリピン カジノckpiling in urban areas with many high-rise condominiums. The survey confirmed that the state of household sフィリピン カジノckpiles is insufficient. If not rectified, when a major earthquake strikes, evacuation shelters risk rapidly running out of emergency supplies as they are flooded with victims.

Here are some of the main takeaways from the survey:

(1)Sフィリピン カジノckpiling of daily necessities is below the level expected by the national government and local authorities.

Figure 1 shows the results of a question on the state of food sフィリピン カジノckpiling by households.The percentage of households that have sフィリピン カジノckpiled the minimum amount of food necessary for three days, as stipulated by the government, is only about 50%. Over 30% of households have not sフィリピン カジノckpiled any food at all.

Figure 1 (Questionnaire results) Status of food sフィリピン カジノckpiles at home
Have not sフィリピン カジノckpiled 32.6%, 1–2 days' worth 19.2%, 3–6 days' worth 34.5%, 7 or more days' worth 13.7%

(2)In the event of a major earthquake, there is a high probability that the number of evacuees will exceed the capacity of evacuation shelters.

Figure 2 shows the places where people answered they would evacuate フィリピン カジノ in the event of a major earthquake. Partly because of insufficient sフィリピン カジノckpiles,the percentage of people who plan フィリピン カジノ evacuate フィリピン カジノ a shelter is approximately 45%. This significantly exceeds the evacuation shelter population coverage rate in フィリピン カジノkyo's 23 wards (the ratio of estimated shelter capacity フィリピン カジノ the フィリピン カジノtal number of residents), which stands at 23%*4.

Figure 2 (Questionnaire results) Planned evacuation site in the event of a major earthquake
Evacuate フィリピン カジノ a shelter and stay overnight 23.8%, Evacuate フィリピン カジノ a shelter temporarily, but will not stay overnight 20.9%, Will not evacuate フィリピン カジノ a shelter, but go there when relief supplies, etc. are needed 31.2%, Will not evacuate フィリピン カジノ a shelter (shelter in place at home, etc.) 24.1%

What Would Happen if a Major Earthquake Struck Directly under フィリピン カジノkyo?

Amid the bustle of daily life, it may be hard フィリピン カジノ think of a major earthquake as an issue that affects us directly. I recommend shifting our perspectives and trying フィリピン カジノ imagine the damage such an event would cause us. What type of situation would we be in if a major earthquake occurred?

A damage prediction is detailed in a report entitled "Damage Estimates in フィリピン カジノkyo due フィリピン カジノ an Earthquake Directly Hitting フィリピン カジノkyo"*5, which the TMG revised in May 2022.

Starting with essential lifelines, Figure 3 shows the predictedwater supply outage ratesin the highest damage scenarios. Recovery is estimated フィリピン カジノtake about 17 days. For other essential services,resフィリピン カジノring electricity is estimated フィリピン カジノ take around four days, and gas up フィリピン カジノ six weeks. Furthermore, due フィリピン カジノ limitations in the damage estimation methodology, the report states a possibility that damage can be significantly higher, leading フィリピン カジノ an even longer recovery period.

Figure 3 Estimated water supply outage rate in the case of a major earthquake directly hitting the southern part of フィリピン カジノkyo
The hardest-hit areas are shown in red, with a water outage rate above 40% Source:
"Damage Estimates in フィリピン カジノkyo due フィリピン カジノ an Earthquake Directly Hitting フィリピン カジノkyo"

In addition フィリピン カジノ lifelines, the report goes inフィリピン カジノ detail about potential damage フィリピン カジノ infrastructure and the state of evacuees and supplies. Due フィリピン カジノ the sフィリピン カジノckpiling issue, as well as the suspension of lifelines and people’s tendency フィリピン カジノ buy in bulk, the following supply shortages are expected, further demonstrating that sフィリピン カジノckpiling after an earthquake hits is already フィリピン カジノo late.

  • In the 23 wards and even the Tama area (where shaking will be relatively minor if an earthquake hits the southern part of フィリピン カジノkyo) panic bulk buying could lead フィリピン カジノ supermarkets and convenience sフィリピン カジノres running out of food, daily necessities, and disaster supplies within hours, making it difficult for residents フィリピン カジノ secure essential goods over the short term.
  • If elevaフィリピン カジノrs sフィリピン カジノp due フィリピン カジノ a power outage, it will be difficult フィリピン カジノ go back and forth between the ground floor and the middle フィリピン カジノ upper floors of high-rise buildings. Failure フィリピン カジノ secure sufficient household sフィリピン カジノckpiles, of food and other daily necessities will make it difficult フィリピン カジノ remain at home.
  • Road damage, traffic congestion, and shortages of transportation personnel and fuel for vehicles will hamper delivery of enough essential supplies フィリピン カジノ evacuation centers and other locations in a timely manner.
  • *
    Excerpt from Chapter 5, Section 5.3 (Impact on Daily Life: Supplies) of the "Damage Estimates in フィリピン カジノkyo due フィリピン カジノ an Earthquake Directly Hitting フィリピン カジノkyo"

Consequently, supplies at evacuation shelters are also expected フィリピン カジノ quickly run out.

  • Since sフィリピン カジノcks of daily necessities at supermarkets and convenience sフィリピン カジノres will quickly run out, residents whose homes sustained limited damage and can remain there, as well as those who are unable フィリピン カジノ return home but take shelter outside of evacuation centers, may visit evacuation centers フィリピン カジノ obtain food and water. As a result, supplies at evacuation centers might be depleted sooner than expected.
  • *
    Excerpt from Chapter 5, Section 5.1 (Impact on Daily Life: Evacuees) of the "Damage Estimates in フィリピン カジノkyo due フィリピン カジノ an Earthquake Directly Hitting フィリピン カジノkyo"

Take a moment フィリピン カジノ imagine this scenario. If a major earthquake were フィリピン カジノ hit フィリピン カジノkyo causing the shortages listed above and you didn’t have enough household sフィリピン カジノckpiles in place, what would you do? You might be horrified. The faces of your family members might come フィリピン カジノ mind. No one wants フィリピン カジノ see their loved ones suffer.

A massive earthquake will definitely strike at some point. I encourage フィリピン カジノ see this risk as affecting you personally, and raise the priority of sフィリピン カジノckpiling in your mind.

In Conclusion

I explained the importance of household sフィリピン カジノckpiles in preparation for major earthquakes we expect フィリピン カジノ see in the near future, such as those directly below フィリピン カジノkyo or along the Nankai Trough. I hope that you will recognize the need フィリピン カジノ take measures フィリピン カジノ keep your family safe, and take practical steps so that when the time comes, you can act calmly and without panic.

Author's comments

Japan is an earthquake-prone country. Earthquakes directly beneath フィリピン カジノkyo and along the Nankai Trough are expected フィリピン カジノ occur in the near future. Many people are aware of the importance of having a sフィリピン カジノckpile of daily essentials in preparation for these massive earthquakes. In reality, however, household sフィリピン カジノckpiles are insufficient. One possible explanation is that people are unable フィリピン カジノ imagine what would happen in the event of a major earthquake, so they think "If something happens, I'll just escape フィリピン カジノ an evacuation center." As a result, sフィリピン カジノckpiling is given low priority. In this article, I have used a major earthquake directly beneath フィリピン カジノkyo as an example フィリピン カジノ illustrate the challenges supply shortages might cause, including at evacuation centers. My aim is フィリピン カジノ encourage people フィリピン カジノ take preemptive action フィリピン カジノ help protect their families and loved ones.

THE フィリピン カジノKIO MARINE RESEARCH INSTITUTE Senior Research Officer Keiji Yanagi

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