THE SEISMOLOGICAL NETWORK AND EARTHQUAKE ACTIVITY IN

VIETNAMDinh Quoc Van,

Institute of Geophysics, Vietnam Academy of Science and Technology

Overview

1. The Vietnam seismological network;

2. The eathquake activity in Vietnam.

The Vietnam National Seismological network

- The permanent seismic station (12)

- Vietnam station: 5

- Jamstec station: 3

- ADPC station: 2

- TW station: 2

- The temporary seismic station (45)

- Vietnam station: 15

- TW station: 25

- Poland : 5

- Online station (21)

- Permanent stations: 12

- Temporary stations: 9

12

10

08

14

16

116102 104 110108106 112 114

24

18

20

22

08

102 108 116114112110106104

14

12

10

18

16

24

22

20

th¸ i l an

c am pu c hia

l µo

tr ung quèc

LEGEND

Vietnam station ADPC station Jamstec station

VIETNAM BROADBAND SEISMOLOGICAL NETWORK

TW station

The near futureVietnam national seismological network (project for 2009-2016)

- 28 permanent stations, with:

10 Q330HRS/Q330HR/STS-2.5 (120s)/Epi-sensor

18 Q330HR/Metrozet PBB200 (40s)/Epi-sensor

- 12 temporary stations with:

12 Guralp CMG-6TD (30s-100Hz)

The extension Vietnam national seismological network project (2012-2017)

- 36 stations, including 6 stations in Ho Chi Minh city and vicinity

The Local seismic network

The Song Tranh 2 dam located in the centre of Vietnam (Quangnam province)

190 mW, include two machines

Reservoir capacity: 740 million cubic meters of water

107.09976

15.118051

LEGEND Current Seismic stations

STR2 Dam

Phong Phó

Kh©m § øcTiªn Kú

T©n An

108.376753 15.118051

t iªn ph í c

Nam Trµ My

B¾c Trµ My

§

t r µ ®«ngt r µ bui

t r µ ®èc

Future Seismic stationsBroadband stations Short-period stations

The Song Tranh 2 seismic network

(10 stations, August, 2013)

- Five Vietnam seismic stations (broadband 30s)

- Five Poland seismic stations (Short-period 1s)

- Online network

The Local seismic network for monitoring trigger seismicity in Lai

Chau reservoir for project 2014-2018

NNA3

MMO

MTE

CCA

NNU

MLVB

CNU

NNA3

MTE

MMO

CCA

NNU

MLVB

M êng TÌ

M êng NhÐ

TX. M êng Lay

S×n Hå

Phong Thæ

Tam § êng

M êng Lay

Tña Chï a

TuÇn Gi¸o

Lai Ch©u

Ë«Pmn

ÐhNmËn

« µgns §

The Earthquake information and Tsunami early warning

Sea level data (MoNRE)Tsunami informations (PTWC, NWPAC, JMA, RIMES,...)

Regional seismic network

National seismic network

Tsunami scenarios (MoNRE)

Seismic data processing centre

Earthquake information and tsunami warning centre

-TV-Radio-Committee for Research and Rescue-Government Offices-Related Agencies

-Alert system-TV-Radio-Committee for Research and Rescue-Government Offices-Related Agencies

Eart

hquake in

form

atio

n

Early Tsunami warning

M ≥

3,5

M 6.5

SYSTEM FOR EARTHQUAKE INFORMATION AND TSUNAMI WARNING IN VIETNAM (WITH VIETNET)

- Seismic data Processing: Seisan, Seiscomp3,..

- Catalog and Bulletin publishing: ISC2009/10/14 01:58:36.30 0.90 0.300 20.5750 102.0240 10.1 9.0 -1 2.7 9.7 3 342 PLV

- Seismic data sharing: Rimes, Jamstec, IRIS.

The earthquake activity in Vietnam

The seimicity in the Northern part of Vietnam and vicinity in the period from 1900-2012

Thõa Thiªn- HuÕ

TP.§µ N½ng

Qu¶ng Nam

B¾c Ninh

Th¸ i Nguyªn

B¾c Giang

L¹ ng S¬n

Qu¶ng Ninh

VÜnh Phóc

TP. Hµ Néi

Qu¶ng B×nh

Qu¶ng TrÞ

Hµ TÜnh

Ninh B×nh

Hµ Nam Th¸ i B×nh

Nam §Þnh

H ng Yªn

Hoµ B×nh

H¶i D ¬ng

TP. H¶i Phßng

Hµ T©y

Thanh Ho¸

NghÖ An

Hµ Giang

Tuyªn Quang

Cao B»ng

Lµo Cai

Yªn B¸ i

Lai Ch©u

B¾c K¹ n

Phó ThäS¬n La

§ iÖn Biªn

t h¸ i l an

l µo

t r ung quèc

1 0 1 º 1 0 2 º

2 2 º

2 1 º

2 3 º

2 3 º3 6 '

1 0 9 º1 0 3 º 1 0 4 º 1 0 5 º 1 0 6 º 1 0 7 º 1 1 1 º1 0 8 º 1 1 0 º

1 9 º

2 0 º

1 6 º

1 7 º

2 3 º

2 2 º

2 1 º

2 0 º

1 9 º

1 8 º

2 3 º3 6 '

1 6 º

1 8 º

1 7 º

3 - 2 -

1

1 - § êng s¾t - Railway§ êng biÓn - Seaway

2

§ êng bé - Road

6 - 7 -

5 - 4 -

§ êng truyÒn tÝn hiÖu - Transmit signal line

S«ng, suèi - River, StreamRanh gií i quèc gia - National boundaryRanh gií i tØnh - Provincial Boundary

3 4 5 6

BËc cña ®øt g·y - Grade of Fault

9 - 8 -

a/ § øt tr î t b»ng - Strike slip fault

UBND tØnh - Province People committeeTªn tØnh - Provincial name 13 -

HuÕ

3.0<=Magnitude<=4.0

5.0<= Magnitude<=6.5

107 8

§ øt gÉy - Fault

Lo¹i ®øt g·y - Type of fault

11 -

12 -

10 -

a b

Chó gi¶ i - l egend

a/ BËc I - Grade I ; b/ BËc II - Grade II

Magnitude >=6.7

b

a/ X c ®Þnh - Known ; b/ Kh«ng x c ®Þnh - Unknown

11 12c

9b

b/ §øt g·y thuËn - Nomal fault ; c/ § øt g·y nghÞch - Reverse fault

4.0<=Nagnitude<=5.0ChÊn t©m ®éng ®Êt - Earthquake Epicenter

a a13

Tû l Ö - Scal e 1 : 1.000.000

M 6.8, 1935 (Dien Bien)M5.4, 1954 (Luc Yen) M5.3, 1962 (Bac Giang)M 6.7 1983 (Tuan Giao)M 5.1, 2001 (Dien Bien)

The seimicity in the Southern part of Vietnam and vicinity in the period from 1900-2012

Kh¸nh Hoµ

Phó Yªn

§ ¨k L¨k

B×nh §Þnh

Qu¶ng Ng· i

Kon Tum

Gia Lai

B×nh D ¬ng

B×nh Ph í cNinh ThuËn

L©m §ång

T©y Ninh

TP. Hå ChÝ Minh

§ång Nai B×nh ThuËn

Long An

TiÒn Giang

§ång Th¸pAn Giang Bµ RÞa Vòng Tµu

VÞ t hanh

Sãc Tr ¨ng

VÜnh Long BÕn Tre

Trµ Vinh

CÇn Th¬

B¹ c Liªu

Cµ Mau

cam pu chia

1 5 º

1 0 1 º 1 0 2 º 1 1 0 º

9 º

8 º3 0 '

1 3 º

1 4 º

1 2 º

1 1 º

1 0 º

8 º3 0 '

1 0 º

1 0 3 º 1 0 6 º 1 0 7 º1 0 4 º 1 1 1 º1 0 9 º1 0 8 º1 0 5 º

9 º

1 1 º

1 2 º

1 3 º

1 4 º

1 5 º

0 10 50 100, km

M6.1, 1923, Phu Quy)

M~5.3, 1970, 1972 (Song Cau)

M4.7, 2005 (Phu Quy)

THANK YOU FOR ATTENTION!