About SPUD

SPUD Version 3.0

The Searchable Product Depository (SPUD) is the IRIS DMC's primary data product management system. Complementing the DMC's SEED and assembled data archives, which contain time series recordings, the SPUD system primarily contains derivative data products of other types (images, movies, etc.) created either at the DMC or by members of the community.

For users SPUD is the query and access point for these products. The web interfaces allow users to search for products using customized queries across product and event details. Users can search across all product types at once or within specific product types. SPUD also has web service interfaces for programmatic discovery and access to the data products.

If any products from SPUD are used in your research please be sure to cite the identified author of the product and the IRIS DMS [Citation Information].

About Ground Motion Visualization Products

The USArray Ground Motion Visualization (GMV) illustrates how seismic waves travel away from the earthquake location by depicting the recorded wave amplitudes at each EarthScope/USArray station location using colored symbols. For more information on GMVs visit the GMV product page.

Two types of GMVs are produced:

  • Vertical-component GMV:
    Produced for US events of magnitude 5.5 or larger and global events of magnitude 6 or larger. The symbol colors represent the amplitude of the vertical ground motion, as detected by the station's seismometer.
  • 3-Component GMV:
    Produced only for events with magnitude 7 and larger use 'tailed' symbols to show direction and amplitude of the normalized horizontal motion. Symbol colors also represent the amplitude of the vertical ground motion, as detected by the station's seismometer.

This product is automatically generated without human review.

GMV Query Help

The page queries for GMV products.

Citing Ground Motion Visualization Products

If you use GMVs in publications, please cite according to the instructions at:



— Chuck Ammon, Professor of Geosciences at Penn State’s original concept and visualizations. Read more
— Bob Woodward at IRIS - adapted the visualization code to MATLAB

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Event Criteria
Depth (km)
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Query Results: 2297 items found
ppPage: 1 of 23pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2016-12-01 22:40:2610.06.3-15.32-70.82SOUTHERN PERU
2016-11-25 14:24:2912.06.539.2774.01SOUTHERN XINJIANG, CHINA
2016-11-24 22:31:0137.65.555.22164.58KOMANDORSKY ISLANDS REGION
2016-11-24 18:43:4910.37.011.96-88.83OFF COAST OF CENTRAL AMERICA
2016-11-21 20:59:4911.46.937.39141.40NEAR EAST COAST OF HONSHU, JAPAN
2016-11-20 20:57:43115.86.4-31.64-68.76SAN JUAN PROVINCE, ARGENTINA
2016-11-14 00:34:2210.06.2-42.58173.26SOUTH ISLAND, NEW ZEALAND
2016-11-13 14:01:00100.66.2-28.92-67.49LA RIOJA PROVINCE, ARGENTINA
2016-11-13 11:32:0710.06.2-42.20173.49SOUTH ISLAND, NEW ZEALAND
2016-11-13 11:02:5623.07.8-42.76173.08SOUTH ISLAND, NEW ZEALAND
2016-11-11 21:42:5944.86.238.50141.56NEAR EAST COAST OF HONSHU, JAPAN
2016-11-07 01:44:
2016-11-04 16:20:4390.86.4-35.10-71.00CHILE-ARGENTINA BORDER REGION
2016-10-30 06:40:171.56.642.8613.09CENTRAL ITALY
2016-10-27 11:53:1817.25.853.62-163.28UNIMAK ISLAND REGION
2016-10-26 19:18:0810.06.042.9613.07CENTRAL ITALY
2016-10-21 05:07:236.46.635.35133.82WESTERN HONSHU, JAPAN
2016-10-19 00:26:01622.76.2-4.91108.16JAVA SEA
2016-10-17 07:14:5032.16.432.9194.87XIZANG
2016-10-17 06:14:5835.06.9-6.05148.86NEW BRITAIN REGION, P.N.G.
2016-10-15 08:03:39451.06.0-4.27150.41NEW BRITAIN REGION, P.N.G.
2016-09-26 05:19:5840.26.027.47128.56RYUKYU ISLANDS
2016-09-24 21:28:42594.56.8-19.84-178.27FIJI ISLANDS REGION
2016-09-24 21:07:13179.06.3-18.09-175.00TONGA ISLANDS
2016-09-23 22:53:1062.56.36.57126.49MINDANAO, PHILIPPINE ISLANDS
2016-09-23 00:14:3310.06.434.50141.75OFF EAST COAST OF HONSHU, JAPAN
2016-09-20 16:21:1610.06.130.54142.08SOUTH OF HONSHU, JAPAN
2016-09-17 02:31:5936.86.0-16.01167.43VANUATU ISLANDS
2016-09-14 07:24:5910.06.0-9.37159.15SOLOMON ISLANDS
2016-09-10 10:08:19114.46.0-5.58-76.96NORTHERN PERU
2016-09-08 21:46:1910.06.3-54.66158.60MACQUARIE ISLANDS REGION
2016-09-07 20:07:3610.05.554.58168.63KOMANDORSKY ISLANDS REGION
2016-09-05 22:54:0410.35.754.35168.60KOMANDORSKY ISLANDS REGION
2016-09-03 12:02:446.65.636.43-96.92OKLAHOMA
2016-09-03 03:27:552.25.640.42-125.65OFF COAST OF NORTHERN CALIFORNIA
2016-09-01 16:37:5830.77.1-37.46179.18OFF E. COAST OF N. ISLAND, N.Z.
2016-08-31 03:11:36499.16.7-3.69152.79NEW IRELAND REGION, P.N.G.
2016-08-29 04:29:5810.06.9-0.07-17.81NORTH OF ASCENSION ISLAND
2016-08-24 10:34:5584.16.820.9294.58MYANMAR
2016-08-24 01:36:3310.06.242.7113.17CENTRAL ITALY
2016-08-23 19:39:44528.26.0-7.28122.45FLORES SEA
2016-08-21 03:45:2310.06.4-55.28-31.75SOUTH GEORGIA ISLAND REGION
2016-08-20 15:58:0410.06.040.29143.75OFF EAST COAST OF HONSHU, JAPAN
2016-08-20 09:01:2610.06.040.36143.68OFF EAST COAST OF HONSHU, JAPAN
2016-08-19 07:32:2210.07.4-55.34-31.94SOUTH GEORGIA ISLAND REGION
2016-08-14 16:28:5775.85.551.51179.54RAT ISLANDS, ALEUTIAN ISLANDS
2016-08-12 03:29:2775.06.1-25.19-177.01SOUTH OF FIJI ISLANDS
2016-08-12 01:26:3616.17.6-22.49173.10LOYALTY ISLANDS REGION
2016-08-04 16:24:34516.76.224.99141.96VOLCANO ISLANDS REGION
2016-08-04 14:15:11258.16.0-22.39-65.99JUJUY PROVINCE, ARGENTINA
2016-08-01 07:42:5110.06.1-23.9682.48SOUTH INDIAN OCEAN
2016-07-29 21:18:25212.47.718.51145.53MARIANA ISLANDS
2016-07-27 01:25:1210.06.3-44.39-79.19OFF COAST OF SOUTHERN CHILE
2016-07-25 19:38:446.56.3-2.94147.98ADMIRALTY ISLANDS REGION, P.N.G.
2016-07-25 17:26:4968.56.2-26.11-70.65NEAR COAST OF NORTHERN CHILE
2016-07-20 15:13:16164.16.0-18.90169.03VANUATU ISLANDS
2016-07-13 12:11:1312.46.3-28.03-176.39KERMADEC ISLANDS REGION
2016-07-11 02:11:0635.06.40.56-79.67NEAR COAST OF ECUADOR
2016-06-26 11:17:1218.76.339.4973.33TAJIKISTAN-XINJIANG BORDER REG.
2016-06-21 17:12:09366.46.1-3.52151.84NEW IRELAND REGION, P.N.G.
2016-06-21 16:26:3510.06.122.66-45.20NORTHERN MID-ATLANTIC RIDGE
2016-06-19 09:47:2213.66.3-20.56169.32VANUATU ISLANDS
2016-06-14 13:49:24131.76.2-18.81168.84VANUATU ISLANDS
2016-06-10 03:25:2210.06.112.84-87.01NEAR COAST OF NICARAGUA
2016-06-09 04:13:0829.96.2-11.47116.23SOUTH OF SUMBAWA, INDONESIA
2016-06-07 19:15:1638.36.31.29126.36NORTHERN MOLUCCA SEA
2016-06-07 10:51:4233.06.218.50-105.14OFF COAST OF JALISCO, MEXICO
2016-06-06 02:35:2310.06.0-30.40-177.18KERMADEC ISLANDS, NEW ZEALAND
2016-06-05 16:25:33428.46.3-4.59125.64BANDA SEA
2016-06-01 22:56:0050.86.5-2.21100.57SOUTHERN SUMATERA, INDONESIA
2016-05-31 20:51:2235.85.855.50-158.54ALASKA PENINSULA
2016-05-31 05:23:47242.96.125.57122.52TAIWAN REGION
2016-05-28 09:47:0193.27.3-56.26-27.04SOUTH SANDWICH ISLANDS REGION
2016-05-28 05:38:51416.86.6-22.02-178.16SOUTH OF FIJI ISLANDS
2016-05-27 04:08:44572.16.4-20.83-178.67FIJI ISLANDS REGION
2016-05-18 16:46:4431.06.80.47-79.64NEAR COAST OF ECUADOR
2016-05-18 07:57:0532.46.70.43-79.76NEAR COAST OF ECUADOR
2016-04-30 08:35:424.86.0-16.31167.19VANUATU ISLANDS
2016-04-29 01:33:3810.06.810.25-103.76NORTHERN EAST PACIFIC RISE
2016-04-28 19:33:2635.07.0-16.09167.34VANUATU ISLANDS
2016-04-22 03:03:4210.06.0-0.33-80.54NEAR COAST OF ECUADOR
2016-04-20 08:35:1110.06.00.71-80.01NEAR COAST OF ECUADOR
2016-04-20 08:33:4815.76.10.61-80.26NEAR COAST OF ECUADOR
2016-04-16 23:58:3719.27.80.37-79.94NEAR COAST OF ECUADOR
2016-04-15 16:25:0610.07.032.78130.73KYUSHU, JAPAN
2016-04-15 14:11:2948.46.213.48-92.16OFF COAST OF CHIAPAS, MEXICO
2016-04-14 21:50:2610.06.5-14.55166.40VANUATU ISLANDS
2016-04-14 12:26:3823.36.032.85130.62KYUSHU, JAPAN
2016-04-14 12:17:0510.06.0-14.50166.48VANUATU ISLANDS
2016-04-13 13:55:17134.86.923.1394.90MYANMAR-INDIA BORDER REGION
2016-04-11 20:10:4045.85.551.90176.61RAT ISLANDS, ALEUTIAN ISLANDS
2016-04-10 10:28:58210.46.636.4971.16AFGHANISTAN-TAJIKISTAN BORD REG.
2016-04-07 03:32:5532.86.9-14.01166.55VANUATU ISLANDS
2016-04-06 14:45:3035.46.0-8.20107.42JAWA, INDONESIA
2016-04-06 06:58:5033.76.9-14.11166.57VANUATU ISLANDS
2016-04-03 08:23:5335.07.2-14.35166.82VANUATU ISLANDS
2016-04-02 05:50:0010.06.257.04-157.95ALASKA PENINSULA
2016-04-01 19:24:5614.86.1-3.43144.95NEAR N COAST OF NEW GUINEA, PNG.
2016-04-01 02:39:0710.06.033.37136.41NEAR S. COAST OF WESTERN HONSHU
2016-03-28 17:14:5510.05.552.26-168.71FOX ISLANDS, ALEUTIAN ISLANDS
ppPage: 1 of 23pp