title: AWS Route 53 health check keeps alarming from inactive region
body: <p>I have a Route 53 health check with all the regions selected except US East (N. Virginia). However, it keeps alarming from that region from time to time. Why's that? Here's the alarm config:</p>
  
  <p><a href="https://i.stack.imgur.com/3eGTl.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/3eGTl.png" alt="enter image description here"></a></p>
  
  <p>Here's an example of the alarm:</p>
  
  <pre><code>You are receiving this email because your Amazon CloudWatch Alarm "***********-Low-HealthCheckStatus" in the US East (N. Virginia) region has entered the ALARM state, because "Threshold Crossed: 1 datapoint [0.0 (12/04/18 14:01:00)] was less than the threshold (1.0)." at "Thursday 12 April, 2018 14:02:29 UTC".
  
  View this alarm in the AWS Management Console:
  https://console.aws.amazon.com/cloudwatch/home?region=us-east-1#s=Alarms&amp;alarm=**************************-Low-HealthCheckStatus
  
  Alarm Details:
  - Name:                       ******************************
  - Description:                
  - State Change:               OK -&gt; ALARM
  - Reason for State Change:    Threshold Crossed: 1 datapoint [0.0 (12/04/18 14:01:00)] was less than the threshold (1.0).
  - Timestamp:                  Thursday 12 April, 2018 14:02:29 UTC
  - AWS Account:                ******************************
  
  Threshold:
  - The alarm is in the ALARM state when the metric is LessThanThreshold 1.0 for 60 seconds. 
  
  Monitored Metric:
  - MetricNamespace:                     AWS/Route53
  - MetricName:                          HealthCheckStatus
  - Dimensions:                          [HealthCheckId =************]
  - Period:                              60 seconds
  - Statistic:                           Minimum
  - Unit:                                not specified
  
  
  
  State Change Actions:
  - OK: 
  - ALARM: [arn:aws:sns:us-east-1:***********************]
  - INSUFFICIENT_DATA: 
  </code></pre>
  
  <p>I've really got bored of this. How to fix it? I need health checks only from Europe.</p>