Wygaśnięcie wydarzenia lub zmiana jego nazwy

Gdy alert się zmieni, wyślij nowy alert, który odwołuje się do poprzedniego. Nie zmieniaj ani nie usuwaj istniejącego alertu z Twojego kanału. Po upływie odpowiedniego czasu (24–48 godzin) usuń z pliku danych alerty, które zostały anulowane, zaktualizowane lub wygasły.

Aby zmienić lub wygasnąć zdarzenie, wykonaj jedną z tych czynności:

• Element UPDATE lub CANCEL <msgType> musi zawierać co najmniej 1 element <references>.
• Możesz anulować zdarzenia na 3 sposoby (w kolejności preferencji):
  1. Ustaw wartość <expires> dateTime dla każdego zdarzenia. W opisie wiadomości ustaw oczekiwany czas trwania alertu.
  2. Wkrótce wyślij nową wiadomość <alert>, która zawiera <msgType> UPDATE, <responseType> "All Clear" i <expires>.
  3. Wyślij nową wiadomość <alert> do <msgType> CANCEL. Aby anulować alert, odwołuj się do elementu <references> w pierwotnym alert.

Przykłady

<alert xmlns="urn:oasis:names:tc:emergency:cap:1.2">
  <identifier>PAAQ-4-mg5a94</identifier>
  <sender>[e-mail]</sender>
  <sent>2013-01-05T10:58:23-00:00</sent>
  <status>Actual</status>
  <msgType>Update</msgType>
  <source>WCATWC</source>
  <scope>Public</scope>
  <code>IPAWSv1.0</code>
  <references>[e-mail],PAAQ-1-mg5a94,2013-01-05T09:01:16-00:00
   [e-mail],PAAQ-2-mg5a94,2013-01-05T09:30:16-00:00 [e-mail],
   PAAQ-3-mg5a94,2013-01-05T10:17:31-00:00</references>
  <incidents>mg5a94</incidents>
  <info>
    <category>Geo</category>
    <event>Tsunami Cancellation</event>
    <responseType>None</responseType>
    <urgency>Past</urgency>
    <severity>Unknown</severity>
    <certainty>Unlikely</certainty>
    <onset>2013-01-05T10:58:23-00:00</onset>
    <expires>2013-01-05T10:58:23-00:00</expires>
    <senderName>NWS West Coast/Alaska Tsunami Warning Center Palmer
     AK</senderName>
    <headline>The tsunami Warning is canceled for the coastal areas of
     British Columbia and Alaska from the north tip of Vancouver Island,
     British Columbia to Cape Fairweather, Alaska (80 miles SE of
     Yakutat).</headline>
    <description>The tsunami Warning is canceled for the coastal areas of
     British Columbia and Alaska from the north tip of Vancouver Island,
     British Columbia to Cape Fairweather, Alaska (80 miles SE of Yakutat).
     - Event details: Preliminary magnitude 7.5 (Mw) earthquake / Lat:
     55.300, Lon: -134.900 at 2013-01-05T08:58:20Z Tsunami cancellations
     indicate the end of the damaging tsunami threat. A cancellation is
     issued after an evaluation of sea level data confirms that a
     destructive tsunami will not impact the alerted region, or after
     tsunami levels have subsided to non-damaging levels.</description>
    <instruction>Recommended Actions: Don't re-occupy hazard zones until
     local emergency officials indicate it is safe to do so. This will be
     the last West Coast/Alaska Tsunami Warning Center message issued for
     this event. Refer to the internet site ntwc.arh.noaa.gov for more
     information. </instruction>
    <web>http://ntwc.arh.noaa.gov/events/PAAQ/2013/01/05/mg5a94/4/WEAK51/WEAK51.txt</web>
    <parameter>
      <valueName>EventLocationName</valueName>
      <value>95 miles NW of Dixon Entrance, Alaska</value>
    </parameter>
    <parameter>
      <valueName>EventPreliminaryMagnitude</valueName>
      <value>7.5</value>
    </parameter>
    <parameter>
      <valueName>EventPreliminaryMagnitudeType</valueName>
      <value>Mw</value>
    </parameter>
    <parameter>
      <valueName>EventOriginTime</valueName>
      <value>2013-01-05T08:58:20-00:00</value>
    </parameter>
    <parameter>
      <valueName>EventDepth</valueName>
      <value>5 kilometers</value>
    </parameter>
    <parameter>
      <valueName>EventLatLon</valueName>
      <value>55.300,-134.900 0.000</value>
    </parameter>
    <parameter>
      <valueName>VTEC</valueName>
      <value>/O.CAN.PAAQ.TS.W.0001.000000T0000Z-000000T0000Z/</value>
    </parameter>
    <parameter>
      <valueName>NWSUGC</valueName>
      <value>BCZ220-210-922-912-921-911-110-AKZ026&gt;029-023-024-019&gt;
      022-025-051258-</value>
    </parameter>
    <parameter>
      <valueName>ProductDefinition</valueName>
      <value>Tsunami cancellations indicate the end of the damaging tsunami
       threat. A cancellation is issued after an evaluation of sea level
       data confirms that a destructive tsunami won't impact the alerted
       region, or after tsunami levels have subsided to non-damaging
       levels.</value>
    </parameter>
    <parameter>
      <valueName>WEAK51</valueName>
      <value>Public Tsunami Warnings, Watches, and Advisories for AK, BC,
       and US West Coast</value>
    </parameter>
    <parameter>
      <valueName>EAS-ORG</valueName>
      <value>WXR</value>
    </parameter>
    <resource>
      <resourceDesc>Event Data as a JSON document</resourceDesc>
      <mimeType>application/json</mimeType>
      <uri>http://ntwc.arh.noaa.gov/events/PAAQ/2013/01/05/mg5a94/4/WEAK51/PAAQ.json</uri>
    </resource>
    <area>
      <areaDesc>95 miles NW of Dixon Entrance, Alaska</areaDesc>
      <circle>55.3,-134.9 0.0</circle>
    </area>
  </info>
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
  ...
</Signature>
</alert>