Update inter-AZ distance

Author: johndowns

articles/reliability/availability-zones-overview.md

@@ -4,7 +4,7 @@ description: Learn about availability zones and how they work to help you achiev
 ms.service: azure
 ms.subservice: azure-availability-zones
 ms.topic: conceptual
-ms.date: 11/22/2024
+ms.date: 01/29/2025
 ms.author: anaharris
 author: anaharris-ms
 ms.reviewer: asinghal
@@ -13,7 +13,7 @@ ms.custom: references_regions, subject-reliability
 
 # What are availability zones?
 
-Many Azure regions provide *availability zones*, which are separated groups of datacenters within a region. Availability zones are close enough to have low-latency connections to other availability zones through a high-performance network. However, availability zones are far enough apart to reduce the likelihood that more than one will be affected by local outages or weather. Availability zones have independent power, cooling, and networking infrastructure. They're designed so that if one zone experiences an outage, then regional services, capacity, and high availability are supported by the remaining zones. They help your data stay synchronized and accessible when things go wrong.
+Many Azure regions provide *availability zones*, which are separated groups of datacenters within a region. Availability zones are typically separated by several kilometers, and usually are within 100 kilometers. This distance means they're close enough to have low-latency connections to other availability zones through a high-performance network. However, they're far enough apart to reduce the likelihood that more than one will be affected by local outages or weather. Availability zones have independent power, cooling, and networking infrastructure. They're designed so that if one zone experiences an outage, then regional services, capacity, and high availability are supported by the remaining zones. They help your data stay synchronized and accessible when things go wrong.
 
 Datacenter locations are selected by using rigorous vulnerability risk assessment criteria. This process identifies all significant datacenter-specific risks and considers shared risks between availability zones.