Cities most at risk of tsunami

The most tsunami-exposed city in our data is Osaka, Japan (5/5). The cities most exposed to tsunami, scored from open data (proximity to a subduction-zone coast, elevation and local seismicity). To compare, see the safest cities from tsunami.
Highest tsunami risk — top 12 (1-5)
5Osaka5Guayaquil5Fukuoka5Saitama5Callao5Hiroshima5Chiba5Niigata5Kumamoto5Okayama5Kagoshima5Chiclayo
#CityCountrytsunami riskLivability
1OsakaJapan5/551
2GuayaquilEcuador5/559
3FukuokaJapan5/558
4SaitamaJapan5/556
5CallaoPeru5/564
6HiroshimaJapan5/557
7ChibaJapan5/558
8NiigataJapan5/556
9KumamotoJapan5/556
10OkayamaJapan5/556
11KagoshimaJapan5/558
12ChiclayoPeru5/563
13ŌitaJapan5/560
14KanazawaJapan5/557
15TakamatsuJapan5/559
16ToyamaJapan5/557
17NagasakiJapan5/560
18GifuJapan5/557
19MiyazakiJapan5/559
20WakayamaJapan5/559
21Viña del MarChile5/565
22Eloy AlfaroEcuador5/562
23MachalaEcuador5/563
24ValparaísoChile5/566
25MantaEcuador5/564
26Puerto MonttChile5/567
27BuenaventuraColombia5/565
28EsmeraldasEcuador5/565
29IquiqueChile5/567
30ValdiviaChile5/568
31SalinasEcuador5/565
32JakartaIndonesia4/555
33SurabayaIndonesia4/555
34DavaoPhilippines4/556
35CaloocanPhilippines4/553
36PalembangIndonesia4/559
37SemarangIndonesia4/558
38ManilaPhilippines4/555
39MakassarIndonesia4/559
40PekanbaruIndonesia4/561
41ZamboangaPhilippines4/557
42PadangIndonesia4/563
43MalaccaMalaysia4/561
44CalambaPhilippines4/557
45SacramentoUnited States4/565
46Kota KinabaluMalaysia4/559
47ManadoIndonesia4/564
48ChristchurchNew Zealand4/567
49JayapuraIndonesia4/561
50CotabatoPhilippines4/557
Tsunami risk source: proximity to a subduction-zone coast, elevation and local seismicity. Indicative tiers where modelled — verify before relying on them.

FAQ

Which cities are most at risk of tsunami?

Osaka, Japan has among the highest tsunami exposure in our data (5/5).

How is tsunami risk measured?

From proximity to a subduction-zone coast, elevation and local seismicity, rated 1 (very low) to 5 (very high).