Why Eastern Samar Is Typhoon-Exposed
Eastern Samar sits on the eastern edge of Eastern Visayas, directly facing the open Pacific with no landmass to break incoming storms. Its coastline is typically the first point of contact in the Philippines for typhoons entering from the Northwest Pacific Basin, ahead of Samar, Leyte, and Southern Leyte further inland.
According to the Joint Typhoon Warning Center, the Northwest Pacific Basin sees an average of 26.6 typhoons and tropical cyclones each year, with activity peaking between July and November. The World Bank's assessment highlights three historically destructive typhoons for the province: Ruby, Iris, and Yolanda.
Source: JTWC Annual Tropical Cyclone Report.
Economic Risk from Typhoons in Eastern Samar
Modeled loss data from the World Bank's Philippines Catastrophe Risk Assessment (2018), developed with AIR Worldwide using historical and simulated storm catalogs.
On a long-term average basis, Eastern Samar is expected to incur 718 million PHP per year in losses to public and private assets from typhoons and earthquakes combined. Over the next 50 years, Eastern Samar has a 40% chance of experiencing losses exceeding 9.8 billion PHP, and a 20% chance of exceeding 13.7 billion PHP.
Typhoons account for the large majority of Eastern Samar's disaster-related economic loss, roughly 4 times greater on average than losses from earthquakes.
Private Assets
62 billion PHP
74% of total asset replacement value
Public Assets
22 billion PHP
26% of total asset replacement value
Source: World Bank / GFDRR, 2018. Asset values as of 2015.
Modeled Typhoon Loss by Return Period
A return period estimates how often a loss of a given size is likely to occur. A 100-year return period means that scale of loss has roughly a 1% chance of happening in any given year.
| Exceedance Probability | Return Period | Direct Loss (PHP Millions) | % of Asset Value | Emergency Loss (PHP Millions) |
|---|---|---|---|---|
| AAL | — | 582 | 0.7% | 104 |
| 10.0% | 10 years | 1,471 | 1.7% | 266 |
| 3.3% | 30 years | 3,760 | 4.5% | 692 |
| 2.0% | 50 years | 5,545 | 6.6% | 1,015 |
| 1.0% | 100 years | 8,389 | 10.0% | 1,509 |
Emergency loss represents an estimate of the loss the national government may sustain from relief and recovery efforts, calculated as a proportion of direct loss. Source: World Bank / AIR Worldwide, 2018.
Eastern Samar vs. Neighboring Provinces
Average annual loss from typhoons and earthquakes, compared across Eastern Samar and its neighboring provinces in Eastern Visayas.
Leyte carries the highest typhoon-related average annual loss among these provinces given its larger asset base, while Eastern Samar's smaller economy means lower absolute losses despite sitting closer to the open Pacific. Source: World Bank / AIR Worldwide, 2018.
Typhoon Safety Resources for Eastern Samar
General safety guidance applies to Eastern Samar residents. See PAGASA's Signal Warning System for current wind threat levels by area.
🚩 Check Your PSWS Signal
Understand what each PAGASA wind signal number means for expected impact in your area.
View Signal Warning System →🛟 General Safety Tips
Preparedness steps to take before and during a typhoon, applicable across the Philippines.
View Safety Tips →People Also Ask About Typhoons in Eastern Samar
How much does Eastern Samar lose to typhoons each year?
On a long-term average basis, Eastern Samar incurs about 582 million PHP per year in direct losses to public and private assets from typhoons alone, according to World Bank and AIR Worldwide modeling. Typhoons account for roughly 81% of Eastern Samar's combined typhoon and earthquake losses.
Why is Eastern Samar so exposed to typhoons?
Eastern Samar sits on the eastern, Pacific-facing edge of Eastern Visayas, typically the first province in the Philippines to make landfall contact with typhoons entering from the Northwest Pacific Basin. Its coastline has little geographic protection from incoming storms.
What is Eastern Samar's worst-case typhoon loss scenario?
At a 100-year return period, roughly a 1% chance in any given year, Eastern Samar could see direct typhoon losses of up to 8,389 million PHP, equal to about 10.0% of the province's total asset replacement value.
Are typhoons or earthquakes a bigger risk in Eastern Samar?
Typhoons are the far larger risk. Eastern Samar's average annual loss from typhoons is about 4 times greater than its average annual loss from earthquakes, 582 million PHP versus 136 million PHP.
How does Eastern Samar compare to other Eastern Visayas provinces for typhoon risk?
Leyte carries the highest typhoon-related average annual loss among Eastern Visayas provinces, driven by its larger asset base. Eastern Samar's absolute losses are smaller despite its direct Pacific exposure, since the province has a comparatively smaller economy at risk.
What percentage of Eastern Samar's assets are at risk from typhoons?
Eastern Samar's total asset replacement value is about 84 billion PHP, of which 74% (62 billion PHP) is private property and 26% (22 billion PHP) is public infrastructure. At a 100-year return period, modeled typhoon losses could reach about 10.0% of that total value.
Economic risk data sourced from: World Bank, UK Aid, GFDRR, and the Philippines Department of Finance, Province Risk Profile: Eastern Samar, Philippines Catastrophe Risk Assessment and Modeling, January 2018, with technical modeling by AIR Worldwide. General typhoon information sourced from PAGASA and the Joint Typhoon Warning Center. ← Back to Typhoon Hub