Category Archives: Natural Catastrophe

Managing severe thunderstorm risk: Looking beyond the weather forecast

As we reach the middle of Spring, the U.S. hail and tornado season is in full swing. March is a changeable month, in weather-terms. There’s an old saying that goes something like this: “March comes in like a lion, goes … Continue reading →

Changing modelers’ view of U.S. earthquake risk

What do we know and what can we expect? Those questions are ones that modelers tackle daily. Let’s start with what we know: The 2014 National Seismic Hazard Maps (NSHM) and the 2015 Uniform California Earthquake Rupture Forecast (UCERF3) describe … Continue reading →

Tropical Cyclone Debbie slams Australian coastline

Cyclone Debbie

Slow-moving Cyclone Debbie brought strong winds and torrential rains accumulating more than 200mm over 24 hours in many places, causing widespread coastal flooding. Continue reading →

Waiting for the dust to settle: The effects of volcanic ash on the aviation industry

In April 2010 Iceland’s Eyjafjallajökull volcano erupted, wreaking havoc across European airspace. At its maximum impact, 75% of all European airline operations were closed. Over seven days of disruption, 10 million people were unable to travel and airline losses reached … Continue reading →

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 →