Category Archives: Natural Catastrophe

Earthquake hazard in a 3D world

The latest advances in computing now allow for 3D simulation of wave propagation; techniques simply not available to us previously. This will allow us to better understand the rupture and resulting ground motions of the largest earthquakes in greater detail. … Continue reading →

Earthquakes converse by the transfer of stress: The strong evidence for short-distance, long-period interactions

During the 75 years before the great 1906 earthquake on the San Andreas fault, the San Francisco Bay area suffered at least 14 shocks of moment magnitude (Mw) equal to or exceeding 6; these occurred on all major faults, and … Continue reading →

Earthquake aftershock zones are actually global

Triggering occurs as a result of the redistribution of stress induced by an earthquake. Differentiating triggered events from normal background seismicity is a key objective in studies of earthquake triggering. During the 1990s there was substantial evidence that earthquake sequences, spaced in time and space, are being triggered by the previous events. Continue reading →

What risks will emerge in 2017?

A look at the emerging risks for 2017 reveals two clear touchpoints: people and politics – and especially politics. Risk experts in areas ranging from human capital to transportation, from Washington, DC to Brazil are looking at the broad implications … Continue reading →

How well do we really understand earthquake potential?

The last decade has seen some of the most devastating earthquakes to society, with some 630,000 lives lost since 2000 due to earthquakes and corresponding cascading hazards like tsunamis and landslides—and economic losses of over US$ 500 billion. This could … Continue reading →

2017’s most dangerous risks for insurers

We took a list of over 50 risks commonly found on insurer risk registers, and asked, “Which risks present the most danger to your firm in 2017?" Continue reading →

The Impact of the North Atlantic Oscillation on European Windstorms

Windstorms are the largest driver of annual insured losses in Europe. One way to predict the likelihood of windstorms occurring at time-scales longer than typical weather forecasts is to investigate teleconnection patterns. Teleconnection patterns are recurring and persistent large-scale patterns … Continue reading →

How to model a windstorm

Storm Angus hit the U.K. earlier this month (also known as Nannette as designated by the Free University of Berlin). Although insurance industry losses are not expected have much impact on the reinsurance industry, the storm did produce high winds … Continue reading →

The next large volcanic eruption in Japan. A source of concern?

The largest and most devastating eruptions have return periods of hundreds, even thousands of years, enough for populations and businesses to settle within range. Continue reading →

Space weather spawns earthbound risks

The University of Cambridge's scenario-based study examines the impacts and derived economic impacts from an extreme space weather event such as a solar storm. Continue reading →