https://www.insurerbrain.com/w/index.php?action=history&feed=atom&title=Definition%3ACatastrophe_exposure 2026-04-29T20:15:38Z Revision history for this page on the wiki MediaWiki 1.43.8 https://www.insurerbrain.com/w/index.php?title=Definition:Catastrophe_exposure&diff=8668&oldid=prev 2026-03-11T04:27:54Z

<p>Bot: Creating new article from JSON</p> <p><b>New page</b></p><div>📍 &#039;&#039;&#039;Catastrophe exposure&#039;&#039;&#039; quantifies the potential for [[Definition:Loss | loss]] that an [[Definition:Insurance carrier | insurer]] or [[Definition:Reinsurer | reinsurer]] faces from [[Definition:Catastrophe (CAT) | catastrophic events]] — hurricanes, earthquakes, wildfires, and similar large-scale perils — across its portfolio of [[Definition:Insurance policy | policies]] or assumed risks. Unlike attritional [[Definition:Exposure | exposure]], which follows relatively predictable patterns, catastrophe exposure is concentrated, correlated, and capable of producing losses that dwarf annual [[Definition:Premium | premium]] income in a single season.<br /> <br /> 🗺️ Measuring and managing this exposure starts with geocoding insured properties and mapping them against [[Definition:Catastrophe peril | peril]] zones. [[Definition:Catastrophe modeling | Catastrophe models]] from vendors such as [[Definition:Moody&#039;s RMS | RMS]], [[Definition:Verisk | AIR]], and [[Definition:CoreLogic | CoreLogic]] simulate thousands of hypothetical events to estimate the distribution of potential losses across a carrier&#039;s book. Key output metrics — [[Definition:Probable maximum loss (PML) | probable maximum loss (PML)]], [[Definition:Aggregate exceedance probability (AEP) | aggregate exceedance probability]], and [[Definition:Occurrence exceedance probability (OEP) | occurrence exceedance probability]] curves — allow [[Definition:Underwriter | underwriters]] and [[Definition:Risk manager | risk managers]] to see where concentration risk is building. Armed with this data, companies set geographic limits, adjust [[Definition:Rate | pricing]] in high-hazard zones, and purchase [[Definition:Catastrophe reinsurance | catastrophe reinsurance]] or [[Definition:Insurance-linked security (ILS) | insurance-linked securities]] to cap their downside.<br /> <br /> ⚖️ Regulators and [[Definition:Rating agency | rating agencies]] pay close attention to catastrophe exposure because an insurer with poorly managed concentrations can become insolvent from a single event. [[Definition:Risk-based capital (RBC) | Risk-based capital]] requirements, [[Definition:Stress test | stress tests]], and [[Definition:Own Risk and Solvency Assessment (ORSA) | ORSA]] filings all demand that carriers demonstrate they can absorb extreme catastrophe scenarios and still meet obligations to [[Definition:Policyholder | policyholders]]. As climate patterns shift and urban development pushes into increasingly hazard-prone areas, the imperative to understand and govern catastrophe exposure has never been more urgent.<br /> <br /> &#039;&#039;&#039;Related concepts:&#039;&#039;&#039;<br /> {{Div col|colwidth=20em}}<br /> * [[Definition:Catastrophe modeling]]<br /> * [[Definition:Probable maximum loss (PML)]]<br /> * [[Definition:Aggregate exposure]]<br /> * [[Definition:Catastrophe reinsurance]]<br /> * [[Definition:Concentration risk]]<br /> * [[Definition:Risk-based capital (RBC)]]<br /> {{Div col end}}</div>

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