The Global Seismographic Network

The Global Seismographic Network (GSN) is a 150+ station, globally distributed, state-of-the-art digital seismic network that provides free, realtime, open access data through the IRIS DMC. The map above shows the distribution of the current station network with respect to network operations.
The Global Seismographic Network is a cooperative partnership between IRIS and the U.S. Geological Survey (USGS), coordinated with the international community, to install and operate a global, multi-use scientific facility as a societal resource for Earth observations, monitoring, research, and education. The stations of the GSN attempt to obtain the best possible recording capability, balanced with global geographic coverage. GSN instrumentation measures and records with high fidelity all seismic vibrations possible from high-frequency, strong ground motions near an earthquake to the slowest global Earth oscillations excited by great earthquakes. Seismology has been the primary focus in the creation of the GSN, but the infrastructure is inherently multi-use and can be extended to other disciplines. Several GSN stations currently incorporate microbarographs, GPS, Geomag, and Meteorological packages.
The management and operation of the GSN utilizes a unique model. IRIS, with funding from the National Science Foundation, provides overall management and oversight for the GSN. IRIS provides a subaward to Project IDA (International Deployment of Accelerometers) at the University of California, San Diego, to operate 41 stations of the network. Another ~100 stations are operated by the USGS, who utilizes the overall program management and governance of IRIS. The remaining 12 stations are part of an affiliated network meeting the design goals of the GSN, but operated outside the NSF/USGS funding. This blended model of network operation allows the GSN to leverage a variety of international partnerships, both government and private, where collaborations can develop directly through interactions with US government agencies or be conducted at the university level. The current distribution of stations is optimized to take full advantage of these two operational models, while ensuring that many of the decades-long relationships between operators and hosts are protected, stabilized, and sustained. Further, the GSN partnership encourages a robust evolution of technology and network operations best practices, since both groups work towards the most efficient technical developments followed by ideas sharing to achieve standardized operations. Community oversight of the GSN is provided by a standing committee made up of seismologists from IRIS member institutions and the international community, with participation by our network operators and major agencies as observers.
The GSN is the U.S. contribution towards global, uniform, unbiased Earth coverage by a permanent network of broadband, three-component digital stations. GSN is coordinated internationally within the International Federation of Digital Seismograph Networks (FDSN), of which IRIS is a founding member.
GSN equipment is based on the GSN Design Goals document developed and coordinated with the GSN Standing Committee and the IRIS Instrumentation Committee. GSN makes every effort to take advantage of a broad mix of available telecommunication technologies, using public and private Internet links, and dedicated satellite circuits.
The GSN, together with the USGS National Earthquake Information Center (NEIC), are principal global sources of data and information for earthquake locations, earthquake hazard mitigation, and earthquake emergency response. In collaboration with National Oceanic and Atmospheric Administration (NOAA) Tsunami Warning Center, Japanese Meteorological Agency (JMA), and the Australian Tsunami Warning System, the GSN provides essential data for tsunami warning response globally. The GSN works closely with the International Monitoring System (IMS) for the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO), where nearly 30 GSN stations are now linked directly to the CTBTO International Data Centre. The GSN is an official observing system within the Global Earth Observing System of Systems (GEOSS).

https://www.iris.edu/hq/programs/gsn

***

Global Seismographic Network

The Global Seismographic Network is a permanent digital network of state-of-the-art seismological and geophysical sensors connected by a telecommunications network, serving as a multi-use scientific facility and societal resource for monitoring, research, and education. Formed in partnership among the USGS, the National Science Foundation (NSF) and the Incorporated Research Institutions for Seismology (IRIS), the GSN provides near-uniform, worldwide monitoring of the Earth, with over 150 modern seismic stations distributed globally. GSN stations are operated by the USGS Albuquerque Seismological Laboratory, the IDA group at UC San Diego, and other affiliate organizations.
Data from the GSN are archived at the IRIS Data Management Center.

Network Status:

Station Information and Operation Status

Partners:

Fact Sheets:

U.S. Department of the Interior | U.S. Geological Survey
Page URL: http://earthquake.usgs.gov/monitoring/gsn/
Page Contact Information: Contact Us
Page Last Modified: July 20, 2016 17:14:18 UTC

By Lind S. Gee and William S. Leith

The Global Seismographic Network (GSN) is a permanent, digital network of more than 150 modern stations in over 80 countries, from the South Pole to Siberia and from the Pacific basin to the southern tip of Africa. At the core of the GSN, are the very broadband, high-dynamic range seismometers that measure the vibrations of the Earth. These instruments are extremely sensitive over a wide range of frequencies and are capable of detecting the response of the Earth to the motions of the Sun and the Moon with periods of thousands of seconds, as well as the strong shaking near large earthquakes with periods less than a tenth of a second, with high fidelity.
In many cases, these seismometers are combined with other sensors, such as microbarographs, anemometers, magnetometers, and Global Positioning System receivers, to form geophysical observatories. Advanced systems for data acquisition and communications transmit continuous digital data from the stations to collection points in the U.S.
The GSN was formed in 1986 as a partnership involving the U.S. Geological Survey (USGS), the National Science Foundation (NSF), and the Incorporated Research Institutions for Seismology (IRIS, a university consortium) and serves as a multi-use scientific facility and societal resource for monitoring, research, and education. All GSN data are freely and openly available to the public and scientists around the world from the IRIS Data Management Center.

For additional information contact:

USGS Geologic Hazards
Box 25046, MS-966
Denver Federal Center
Denver, CO 80225-0046

http://geohazards.cr.usgs.gov/
First posted June 14, 2011

Fact Sheet PDF (4.82 MB)

U.S. Department of the Interior | U.S. Geological Survey
URL: http://pubs.usgs.gov/fs/2011/3021/index.html
Page Contact Information: Contact USGS
Page Last Modified: Wednesday, January 09 2013, 07:23:23 PM

http://earthquake.usgs.gov/monitoring/gsn/

Seismic Network Operations

More Information
Zoom in on an area to view all stations.

Telemetry Status - Network Code

Download table as CSV

Network Code	Station Code	Name	Latitude	Longitude	Elevation	Datalogger
II	AAK	Ala Archa, Kyrgyzstan	42.639	74.494	1645	--
II	ABKT	Alibek, Turkmenistan	37.93	58.119	678	--
II	ABPO	Ambohimpanompo, Madagascar	-19.018	47.229	1528	--
IU	ADK	Adak, Aleutian Islands, Alaska	51.882	-176.684	130	Q330
IU	AFI	Afiamalu, Samoa	-13.909	-171.777	706	Q330
II	ALE	Alert, N.W.T., Canada	82.503	-62.35	60	--
IU	ANMO	Albuquerque, New Mexico, USA	34.946	-106.457	1820	Q330
IU	ANTO	Ankara, Turkey	39.868	32.793	1090	Q330
CU	ANWB	Willy Bob, Antigua and Barbuda	17.669	-61.786	39	Q330
II	ARU	Arti, Russia	56.43	58.562	250	--
II	ASCN	Butt Crater, Ascension Island	-7.933	-14.36	173	--
CU	BBGH	Gun Hill, Barbados	13.143	-59.559	180	Q330
IU	BBSR	Bermuda Institute of Ocean Sciences, St George's Bermuda	32.371	-64.696	30	Q330
CU	BCIP	Isla Barro Colorado, Panama	9.166	-79.837	61	Q330
GT	BDFB	Brasilia, Brazil	-15.642	-48.015	1195	--
II	BFO	Black Forest Observatory, Schiltach, Germany	48.332	8.331	589	--
GT	BGCA	Bogoin, Central African Republic	5.176	18.424	676	--
IU	BILL	Bilibino, Russia	68.065	166.453	320	Q680
IC	BJT	Baijiatuan, Beijing, China	40.018	116.168	197	Q330
II	BORG	Borgarfjordur, Asbjarnarstadir, Iceland	64.747	-21.327	110	--
GT	BOSA	Boshof, South Africa	-28.614	25.256	1280	--
II	BRVK	Borovoye, Kazakhstan	53.058	70.283	330	--
IU	CASY	Casey, Antarctica	-66.279	110.535	10	Q330
IU	CCM	Cathedral Cave, Missouri, USA	38.056	-91.245	222	Q330
IU	CHTO	Chiang Mai, Thailand	18.814	98.944	420	Q330
II	CMLA	Cha de Macela, Sao Miguel Island, Azores	37.764	-25.524	429	--
II	COCO	West Island, Cocos (Keeling) Islands	-12.19	96.835	1	--
IU	COLA	College Outpost, Alaska, USA	64.874	-147.862	200	Q330
IU	COR	Corvallis, Oregon, USA	44.586	-123.305	110	Q330
GT	CPUP	Villa Florida, Paraguay	-26.331	-57.331	105	--
IU	CTAO	Charters Towers, Australia	-20.088	146.255	357	Q330
IU	DAV	Davao, Philippines	7.07	125.579	150	Q330
GT	DBIC	Dimbokro, Cote d'Ivoire	6.67	-4.857	125	--
II	DGAR	Diego Garcia, Chagos Islands, Indian Ocean	-7.412	72.453	1	--
IU	DWPF	Disney Wilderness Preserve, Florida, USA	28.11	-81.433	30	Q330
II	EFI	Mount Kent, East Falkland Island	-51.675	-58.064	110	--
IC	ENH	Enshi, Hubei Province, China	30.276	109.494	500	Q330
II	ERM	Erimo, Hokkaido Island, Japan	42.015	143.157	40	--
II	ESK	Eskdalemuir, Scotland, UK	55.317	-3.205	242	--
II	FFC	Flin Flon, Canada	54.725	-101.978	338	--
IU	FUNA	Funafuti, Tuvalu	-8.526	179.197	20	Q330
IU	FURI	Mt. Furi, Ethiopia	8.895	38.68	2570	Q330
IU	GNI	Garni, Armenia	40.148	44.741	1609	Q330
IU	GRFO	Grafenberg, Germany	49.691	11.22	384	Q330
CU	GRGR	Grenville, Grenada	12.132	-61.654	195	Q330
CU	GRTK	Grand Turk, Turks and Caicos Islands	21.511	-71.133	12	Q330
CU	GTBY	Guantanamo Bay, Cuba	19.927	-75.111	79	Q330
IU	GUMO	Guam, Mariana Islands	13.589	144.868	170	Q330
IC	HIA	Hailar, Neimenggu Autonomous Region, China	49.27	119.741	620	Q330
IU	HKT	Hockley, Texas	29.962	-95.838	-413	Q330
IU	HNR	Honiara, Solomon Islands	-9.439	159.947	100	Q330
II	HOPE	Hope Point, South Georgia Island	-54.284	-36.488	20	--
IU	HRV	Adam Dziewonski Observatory (Oak Ridge), Massachusetts, USA	42.506	-71.558	200	Q330
IU	INCN	Inchon, Republic of Korea	37.478	126.624	80	Q330
IU	JOHN	Johnston Island, USA	16.733	-169.529	2	Q330
II	JTS	Las Juntas de Abangares, Costa Rica	10.291	-84.953	340	--
II	KAPI	Kappang, Sulawesi, Indonesia	-5.014	119.752	300	--
IU	KBL	Kabul, Afghanistan	34.541	69.043	1920	Q330
IU	KBS	Ny-Alesund, Spitzbergen, Norway	78.915	11.938	90	Q330
II	KDAK	Kodiak Island, Alaska, USA	57.783	-152.583	152	--
IU	KEV	Kevo, Finland	69.757	27.003	100	Q330
IU	KIEV	Kiev, Ukraine	50.701	29.224	180	Q680
IU	KIP	Kipapa, Hawaii, USA	21.42	-158.011	110	Q330
II	KIV	Kislovodsk, Russia	43.955	42.686	1054	--
IU	KMBO	Kilima Mbogo, Kenya	-1.127	37.252	1950	Q330
IC	KMI	Kunming, Yunnan Province, China	25.123	102.74	1975	Q330
IU	KNTN	Kanton, Kiritibati	-2.774	-171.719	20	Q330
IU	KONO	Kongsberg, Norway	59.649	9.598	216	Q330
IU	KOWA	Kowa, Mali	14.497	-4.014	321	Q330
II	KURK	Kurchatov, Kazakhstan	50.715	78.62	184	--
II	KWAJ	Kwajalein Atoll, Pacific Ocean	8.802	167.613	0	--
GT	LBTB	Lobatse, Botswana, Africa	-25.015	25.597	1128	--
IU	LCO	Las Campanas Astronomical Observatory, Chile	-29.011	-70.7	2300	Q680
GT	LPAZ	La Paz , Bolivia	-16.288	-68.131	4817	--
IC	LSA	Tibet, China	29.703	91.127	3660	Q330
IU	LSZ	Lusaka, Zambia	-15.278	28.188	1200	Q330
IU	LVC	Limon Verde, Chile	-22.613	-68.911	2960	Q330
II	LVZ	Lovozero, Russia	67.898	34.651	630	--
IU	MA2	Magadan, Russia	59.576	150.77	339	Q330
IU	MACI	Morro de la Arena, Canary Islands	28.25	-16.508	1674	Nanometrics Taurus
IU	MAJO	Matsushiro, Japan	36.546	138.204	405	Q330
IU	MAKZ	Makanchi, Kazakhstan	46.808	81.977	600	Q330
II	MBAR	Mbarara, Uganda	-0.602	30.738	1390	--
IU	MBWA	Marble Bar, Western Australia	-21.159	119.731	190	Q330
IC	MDJ	Mudanjiang, Heilongjiang Province, China	44.617	129.591	270	Q330
IU	MIDW	Midway Island, USA	28.216	-177.37	20	Q330
II	MSEY	Mahe, Seychelles	-4.674	55.479	475	--
IU	MSKU	Masuku, Gabon	-1.656	13.612	312	Q680
II	MSVF	Monasavu, Fiji	-17.745	178.053	801.1	--
CU	MTDJ	Mount Denham, Jamaica	18.226	-77.535	925	Q330
II	NIL	Nilore, Pakistan	33.651	73.269	629	--
II	NNA	Nana, Peru	-11.988	-76.842	575	--
II	NRIL	Norilsk, Russia	69.505	88.441	92	--
IU	NWAO	Narrogin, Australia	-32.928	117.239	380	Q330
II	OBN	Obninsk, Russia	55.115	36.567	160	--
IU	OTAV	Otavalo, Ecuador	0.238	-78.451	3510	Q330
IU	PAB	San Pablo, Spain	39.545	-4.35	950	Q330
II	PALK	Pallekele, Sri Lanka	7.273	80.702	460	--
IU	PAYG	Puerto Ayora, Galapagos Islands	-0.674	-90.286	270	Q330
IU	PET	Petropavlovsk, Russia	53.023	158.65	110	Q680
II	PFO	Pinon Flat, California, USA	33.611	-116.456	1280	--
GT	PLCA	Paso Flores, Argentina	-40.733	-70.551	1050	--
IU	PMG	Port Moresby, New Guinea	-9.405	147.16	90	Q330
IU	PMSA	Palmer Station, Antarctica	-64.774	-64.049	40	Q330
IU	POHA	Pohakuloa, Hawaii, USA	19.757	-155.533	1990	Q330
IU	PTCN	Pitcairn Island, South Pacific	-25.071	-130.095	220	Q680
IU	PTGA	Pitinga, Brazil	-0.731	-59.967	237	Q330
IC	QIZ	Qiongzhong, Hainan Province, China	19.029	109.844	240	Q330
IU	QSPA	South Pole Remote Earth Science Observatory (Quiet Zone)	-89.929	144.438	2850	Q330
IU	RAO	Raoul, Kermadec Islands	-29.245	-177.929	60	Q330
IU	RAR	Rarotonga, Cook Islands	-21.212	-159.773	28	Q330
II	RAYN	Ar Rayn, Saudi Arabia	23.523	45.503	631	--
IU	RCBR	Riachuelo, Brazil	-5.827	-35.901	400	Q330
II	RPN	Rapanui, Easter Island, Chile	-27.127	-109.334	110	--
IU	RSSD	Black Hills, South Dakota, USA	44.121	-104.036	2090	Q330
II	SACV	Santiago Island, Cape Verde	14.97	-23.608	387	--
IU	SAML	Samuel, Brazil	-8.949	-63.183	120	Q330
IU	SBA	Scott Base, Antarctica	-77.849	166.757	50	Q680
CU	SDDR	Presa de Sabenta, Dominican Republic	18.982	-71.288	589	Q330
IU	SDV	Santo Domingo, Venezuela	8.884	-70.634	1620	Q330
IU	SFJD	Sondre Stromfjord, Greenland	66.996	-50.621	330	Q330
II	SHEL	Horse Pasture, St. Helena Island	-15.959	-5.746	537	--
IU	SJG	San Juan, Puerto Rico	18.109	-66.15	420	Q330
IU	SLBS	Sierra la Laguna Baja California Sur, Mexico	23.686	-109.944	825	Q330
IU	SNZO	South Karori, New Zealand	-41.309	174.704	120	Q330
IC	SSE	Shanghai, China	31.095	121.191	40	Q330
IU	SSPA	Standing Stone, Pennsylvania	40.636	-77.888	270	Q330
II	SUR	Sutherland, South Africa	-32.38	20.812	1770	--
IU	TARA	Tarawa Island, Republic of Kiribati	1.355	172.923	20	Q330
IU	TATO	Taipei, Taiwan	24.974	121.497	160	Q330
II	TAU	Hobart, Tasmania, Australia	-42.91	147.32	132	--
IU	TEIG	Tepich, Yucatan, Mexico	20.226	-88.276	40	Q680
CU	TGUH	Tegucigalpa, Honduras	14.057	-87.273	1151	Q330
IU	TIXI	Tiksi, Russia	71.634	128.867	40	Q680
II	TLY	Talaya, Russia	51.681	103.644	579	--
IU	TRIS	Tristan da Cunha	-37.068	-12.315	60	Q680
IU	TRQA	Tornquist, Argentina	-38.057	-61.979	540	Q330
IU	TSUM	Tsumeb, Namibia	-19.202	17.584	1260	Q330
IU	TUC	Tucson, Arizona	32.31	-110.785	910	Q330
IU	ULN	Ulaanbaatar, Mongolia	47.865	107.053	1610	Q330
GT	VNDA	Wright Valley (Bull Pass) Antarctica	-77.517	161.853	151	--
IU	WAKE	Wake Island	19.283	166.652	20	Q330
IU	WCI	Wyandotte Cave, Indiana, USA	38.229	-86.294	210	Q330
IC	WMQ	Urumqi, Xinjiang Province, China	43.814	87.705	850	Q330
II	WRAB	Tennant Creek, NT, Australia	-19.934	134.36	366	--
IU	WVT	Waverly, Tennessee, USA	36.13	-87.83	170	Q330
IC	XAN	Xi'an, China	34.031	108.924	630	Q330
IU	XMAS	Kiritimati Island, Republic of Kiribati	2.045	-157.446	20	Q680
IU	YAK	Yakutsk, Russia	62.031	129.68	110	Q330
IU	YSS	Yuzhno Sakhalinsk, Russia	46.959	142.76	150	Q330