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
2GuayaquilEcuador5/550
3FukuokaJapan5/555
4SaitamaJapan5/554
5CallaoPeru5/564
6HiroshimaJapan5/555
7ChibaJapan5/555
8NiigataJapan5/553
9KumamotoJapan5/554
10OkayamaJapan5/554
11KagoshimaJapan5/555
12ChiclayoPeru5/562
13ŌitaJapan5/558
14KanazawaJapan5/555
15TakamatsuJapan5/556
16ToyamaJapan5/555
17NagasakiJapan5/558
18GifuJapan5/554
19MiyazakiJapan5/556
20WakayamaJapan5/557
21Viña del MarChile5/567
22Eloy AlfaroEcuador5/553
23MachalaEcuador5/554
24ValparaísoChile5/567
25MantaEcuador5/556
26Puerto MonttChile5/569
27BuenaventuraColombia5/561
28EsmeraldasEcuador5/556
29IquiqueChile5/568
30ValdiviaChile5/570
31SalinasEcuador5/556
32JakartaIndonesia4/567
33SurabayaIndonesia4/567
34DavaoPhilippines4/564
35CaloocanPhilippines4/561
36PalembangIndonesia4/570
37SemarangIndonesia4/568
38ManilaPhilippines4/562
39MakassarIndonesia4/570
40PekanbaruIndonesia4/571
41ZamboangaPhilippines4/566
42PadangIndonesia4/574
43MalaccaMalaysia4/570
44CalambaPhilippines4/565
45SacramentoUnited States4/551
46Kota KinabaluMalaysia4/568
47ManadoIndonesia4/573
48ChristchurchNew Zealand4/557
49JayapuraIndonesia4/571
50CotabatoPhilippines4/565
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).