How big a power station do I need for a blackout?
It depends on which devices you run and for how long. Phones, a router and lights need only a small unit; a fridge, fan or CPAP overnight pushes you toward 1000 Wh or more. Use the power station calculator to estimate from your own device list.
Are Jackery, EcoFlow and Anker sold in Japan?
Yes, with 100 V Japanese models and the PSE mark. Buy the Japan version for warranty and safety compliance. See the comparison guide for where each is sold and how warranties differ.
How much emergency water and food should I store?
A common guideline is 3 litres of water per person per day and at least three days, ideally a week, of food. The rolling-stock method keeps this fresh by using and rebuying as you go. See the 7-day family plan.
Is there halal or vegetarian emergency food in Japan?
Some Japanese emergency foods (alpha rice and certain retort meals) are meat-free, and a few are halal-certified. Always read the label, since ingredients and certification vary. See the halal and vegetarian guide.
What is ローリングストック (rolling stock)?
Buying a little extra of the food and supplies you already use, then eating the oldest and rebuying, so your stockpile stays fresh without a big one-time purchase. See the rolling-stock method.
What are the JMA warning levels 1 to 5?
A five-level scale that tells you what action to take, from staying aware (1 to 2) to evacuating (3 to 4) to securing your life immediately (5). See the warning levels guide for what each means for foreign residents.
What is the 南海トラフ臨時情報?
A special advisory the JMA issues when the risk of a large Nankai Trough earthquake is temporarily raised. It is not a prediction of a specific quake; it is a prompt to check your preparations. See the plain-English explainer.
Can I anchor furniture in a rental apartment?
Yes. Tension rods (突っ張り棒), anti-tip mats (耐震マット) and stopper strips hold furniture without screwing into walls, so they suit rentals. See the furniture anchoring guide.