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
1OsakaJapan5/556
2GuayaquilEcuador5/548
3FukuokaJapan5/563
4SaitamaJapan5/561
5CallaoPeru5/565
6HiroshimaJapan5/562
7ChibaJapan5/562
8NiigataJapan5/561
9KumamotoJapan5/561
10OkayamaJapan5/561
11KagoshimaJapan5/563
12ChiclayoPeru5/563
13ŌitaJapan5/564
14KanazawaJapan5/562
15TakamatsuJapan5/563
16ToyamaJapan5/562
17NagasakiJapan5/565
18GifuJapan5/561
19MiyazakiJapan5/563
20WakayamaJapan5/564
21Viña del MarChile5/567
22Eloy AlfaroEcuador5/550
23MachalaEcuador5/552
24ValparaísoChile5/567
25MantaEcuador5/553
26Puerto MonttChile5/569
27BuenaventuraColombia5/558
28EsmeraldasEcuador5/553
29IquiqueChile5/568
30ValdiviaChile5/570
31SalinasEcuador5/554
32JakartaIndonesia4/560
33SurabayaIndonesia4/560
34DavaoPhilippines4/559
35CaloocanPhilippines4/556
36PalembangIndonesia4/563
37SemarangIndonesia4/562
38ManilaPhilippines4/557
39MakassarIndonesia4/563
40PekanbaruIndonesia4/565
41ZamboangaPhilippines4/560
42PadangIndonesia4/568
43MalaccaMalaysia4/565
44CalambaPhilippines4/560
45SacramentoUnited States4/567
46Kota KinabaluMalaysia4/563
47ManadoIndonesia4/568
48ChristchurchNew Zealand4/571
49JayapuraIndonesia4/566
50CotabatoPhilippines4/560
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).