RIMES-20190808-0402-002 (Type II)

TSUNAMI BULLETIN NUMBER 2

Issued at 0402 UTC Thursday 08 August 2019

... POTENTIAL TSUNAMI THREAT ...

Epicenter Location: Off West Coast of Northern Sumatra
EARTHQUAKE INFORMATION
Magnitude (Preferred) : 8.40 Mw(mB)
Depth: 10 km
Date: 08 Aug 2019
Origin Time: 0225 UTC
Latitude: 2.2 °N
Longitude: 93.1 °E
Location: Off West Coast of Northern Sumatra
EVALUATION
Earthquakes of this size are capable of generating tsunamis. However, so far, there is no confirmation about the triggering of a tsunami.

An investigation is under way to determine if a tsunami has been triggered. RIMES will monitor sea level gauges and report if any tsunami wave activity has occurred.

Based on pre-run model scenarios, the zones listed below are POTENTIALLY UNDER THREAT.

Further information on this event will be available at:
http://www.rimes.int/eqt-tsunami-bulletin/
TSUNAMI THREAT
The list below shows the forecast arrival time of the first wave estimated to exceed 0.5m amplitude at the beach in each zone, and the amplitude of the maximum wave predicted for the zone. Zones where the estimated wave amplitudes are less than 0.5m at the beach are not shown.

The list is grouped by country (alphabetic order) and ordered according to the earliest estimated times of arrival at the beach.

Please be aware that actual wave arrival times may differ from those below, and the initial wave may not be the largest. A tsunami is a series of waves, and the time between successive waves can be five minutes to one hour.

The threat is deemed to have passed two hours after the forecast time for last exceedance of the 0.5m threat threshold for a zone. As local conditions can cause a wide variation on tsunami wave action, CANCELLATION of national warnings and ALL CLEAR determination must be made by national/ state/ local authorities.

ADVICE
This bulletin is being issued as advice. Only national/ state/ local authorities and disaster management officers have the authority to make decisions regarding the official threat and warning status in their coastal areas and any action to be taken in response.
UPDATES
Additional bulletins will be issued by RIMES for this event as more information becomes available.

Other TSPs may issue additional information at:
IOTWMS-TSP AUSTRALIA: http://www.bom.gov.au/tsunami/iotws
IOTWMS-INDIA: http://www.incois.gov.in/Incois/tsunami/eqevents.jsp
IOTWMS-INDONESIA: http://rtsp.bmkg.go.id/publicbull.php
PTWC: http://ptwc.weather.gov/
NWPTAC: http://www.jma.go.jp/en/tsunami/
US NTWC: http://wcatwc.arh.noaa.gov/
JATWC: http://www.bom.gov.au/tsunami/

In case of conflicting information from TSPs, the more conservative information should be used for safety.
CONTACT INFORMATION
REGIONAL INTEGRATED MULTI-HAZARD EARLY WARNING SYSTEM (RIMES)
Address: Outreach Building, AIT Campus, Pathumthani 12120 Thailand
Tel.: +662-516-5905 to 07
Fax: +662-516-5908 to 09
Email: tsunami@rimes.int
Website: www.rimes.int

RIMES-20190808-0342-001 (Type I)

TSUNAMI BULLETIN NUMBER 1

Issued at 0342 UTC Thursday 08 August 2019

... EARTHQUAKE INFORMATION BULLETIN ...

Epicenter Location: Off West Coast of Northern Sumatra
EARTHQUAKE INFORMATION
Magnitude (Preferred) : 8.40 Mw(mB)
Depth: 10 km
Date: 08 Aug 2019
Origin Time: 0225 UTC
Latitude: 2.2 °N
Longitude: 93.1 °E
Location: Off West Coast of Northern Sumatra
EVALUATION
RIMES is evaluating this earthquake to determine if a tsunami has been generated.

Further information on this event will be available at:
http://www.rimes.int/eqt-tsunami-bulletin/
ADVICE
This bulletin is being issued as advice. Only national/ state/ local authorities and disaster management officers have the authority to make decisions regarding the official threat and warning status in their coastal areas and any action to be taken in response.
UPDATES
Additional bulletins will be issued by RIMES for this event as more information becomes available.

Other TSPs may issue additional information at:
IOTWMS-TSP AUSTRALIA: http://www.bom.gov.au/tsunami/iotws
IOTWMS-INDIA: http://www.incois.gov.in/Incois/tsunami/eqevents.jsp
IOTWMS-INDONESIA: http://rtsp.bmkg.go.id/publicbull.php
PTWC: http://ptwc.weather.gov/
NWPTAC: http://www.jma.go.jp/en/tsunami/
US NTWC: http://wcatwc.arh.noaa.gov/
JATWC: http://www.bom.gov.au/tsunami/

In case of conflicting information from TSPs, the more conservative information should be used for safety.
CONTACT INFORMATION
REGIONAL INTEGRATED MULTI-HAZARD EARLY WARNING SYSTEM (RIMES)
Address: Outreach Building, AIT Campus, Pathumthani 12120 Thailand
Tel.: +662-516-5905 to 07
Fax: +662-516-5908 to 09
Email: tsunami@rimes.int
Website: www.rimes.int