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: 2430 items found
ppPage: 1 of 25pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2017-11-17 22:34:1910.06.329.8394.91EASTERN XIZANG-INDIA BORDER REG.
2017-11-13 02:28:2419.86.59.53-84.50COSTA RICA
2017-11-12 18:18:1933.97.234.9345.79IRAN-IRAQ BORDER REGION
2017-11-11 00:36:1510.06.3-11.75-14.10ASCENSION ISLAND REGION
2017-11-09 07:42:1220.36.032.54141.45SOUTHEAST OF HONSHU, JAPAN
2017-11-07 21:26:38107.46.5-4.23143.48NEW GUINEA, PAPUA NEW GUINEA
2017-11-04 09:00:1910.06.8-15.36-173.22TONGA ISLANDS
2017-11-01 05:09:0010.06.0-21.79168.92LOYALTY ISLANDS
2017-11-01 02:23:5610.06.6-21.63168.88LOYALTY ISLANDS
2017-11-01 00:09:3010.06.1-21.72168.93LOYALTY ISLANDS
2017-10-31 11:50:5132.46.3-3.70127.82SERAM, INDONESIA
2017-10-31 00:42:0816.76.8-21.69169.09SOUTHEAST OF LOYALTY ISLANDS
2017-10-28 19:11:0110.06.086.8955.13NORTH OF FRANZ JOSEF LAND
2017-10-24 10:47:47549.26.7-7.24123.04BANDA SEA
2017-10-18 12:00:5910.06.0-20.60-173.90TONGA ISLANDS
2017-10-10 18:53:2810.06.7-54.288.64BOUVET ISLAND REGION
2017-10-10 06:32:2082.46.3-18.52-69.64NORTHERN CHILE
2017-10-08 22:34:33111.86.652.45176.81RAT ISLANDS, ALEUTIAN ISLANDS
2017-10-08 20:48:5810.06.3-61.74154.55BALLENY ISLANDS REGION
2017-10-08 14:04:3810.06.1-19.01-175.56TONGA ISLANDS
2017-10-06 07:59:3310.06.037.49143.95OFF EAST COAST OF HONSHU, JAPAN
2017-09-26 04:20:0098.16.4-23.71-176.94SOUTH OF FIJI ISLANDS
2017-09-25 20:29:245.76.0-6.19152.74NEW BRITAIN REGION, P.N.G.
2017-09-23 12:53:, MEXICO
2017-09-22 19:50:169.15.740.44-126.67OFF COAST OF NORTHERN CALIFORNIA
2017-09-20 20:09:49200.26.4-18.80169.10VANUATU ISLANDS
2017-09-20 16:37:1610.06.137.98144.67OFF EAST COAST OF HONSHU, JAPAN
2017-09-20 01:43:3010.06.1-50.37162.55AUCKLAND ISLANDS, N.Z. REGION
2017-09-19 18:14:3951.07.118.58-98.40CENTRAL MEXICO
2017-09-08 04:49:1735.08.015.03-93.81NEAR COAST OF CHIAPAS, MEXICO
2017-09-07 17:26:49448.26.127.76139.81BONIN ISLANDS, JAPAN REGION
2017-09-04 08:07:3535.06.0-57.79-25.58SOUTH SANDWICH ISLANDS REGION
2017-09-03 03:30:010.06.341.34129.04NORTH KOREA
2017-08-31 17:46:0263.25.458.44-153.64KODIAK ISLAND REGION, ALASKA
2017-08-31 17:06:5749.56.2-1.1299.71SOUTHERN SUMATRA, INDONESIA
2017-08-27 04:17:508.16.4-1.45148.06ADMIRALTY ISLANDS REGION, P.N.G.
2017-08-19 02:00:52538.66.4-17.97-178.85FIJI ISLANDS REGION
2017-08-18 02:59:2210.06.8-1.10-13.66NORTH OF ASCENSION ISLAND
2017-08-13 03:08:1135.96.4-3.79101.60SOUTHERN SUMATRA, INDONESIA
2017-08-11 05:28:25168.26.214.01120.71LUZON, PHILIPPINES
2017-08-08 23:27:5325.96.344.3282.84NORTHERN XINJIANG, CHINA
2017-08-08 13:19:499.06.533.20103.86GANSU, CHINA
2017-07-28 02:39:1610.05.554.33169.28KOMANDORSKIYE OSTROVA REGION
2017-07-20 22:31:1210.06.736.9527.46DODECANESE ISLANDS, GREECE
2017-07-18 02:05:1944.06.4-16.40-73.60NEAR COAST OF PERU
2017-07-17 23:34:1411.77.754.47168.82KOMANDORSKIYE OSTROVA REGION
2017-07-17 11:05: OSTROVA REGION
2017-07-13 03:36:0947.06.4-4.79153.16NEW IRELAND REGION, P.N.G.
2017-07-11 07:00:0110.06.6-49.55164.03AUCKLAND ISLANDS, N.Z. REGION
2017-07-06 08:03:576.56.511.11124.63LEYTE, PHILIPPINES
2017-07-06 06:30:164.35.846.90-112.59MONTANA
2017-06-30 22:29:447.46.0-0.33-80.51NEAR COAST OF ECUADOR
2017-06-29 07:03:10392.36.0-31.10179.95KERMADEC ISLANDS REGION
2017-06-28 18:20:5310.06.0-30.42-177.67KERMADEC ISLANDS, NEW ZEALAND
2017-06-25 17:42:3038.36.2-19.67-176.46FIJI ISLANDS REGION
2017-06-22 12:31:0446.86.813.75-90.95NEAR COAST OF GUATEMALA
2017-06-17 22:26:02518.26.1-24.10179.59SOUTH OF FIJI ISLANDS
2017-06-15 00:26:1734.06.0-30.55-178.07KERMADEC ISLANDS, NEW ZEALAND
2017-06-14 07:29:06111.56.915.02-91.93MEXICO-GUATEMALA BORDER REGION
2017-06-12 12:28:3810.36.338.9326.36AEGEAN SEA
2017-06-03 19:17:3310.06.0-62.60155.83BALLENY ISLANDS REGION
2017-06-02 22:24:4810.06.854.08170.93NEAR ISLANDS, ALEUTIAN ISLANDS
2017-05-29 14:35:209.46.6-1.26120.48SULAWESI, INDONESIA
2017-05-28 07:06:1750.75.551.83-175.37ANDREANOF ISLANDS, ALEUTIAN IS.
2017-05-24 16:36:0111.95.852.41-166.65FOX ISLANDS, ALEUTIAN ISLANDS
2017-05-20 01:06:14533.06.09.39123.96NEGROS, PHILIPPINES
2017-05-15 13:22:3810.06.2-4.02152.49NEW BRITAIN REGION, P.N.G.
2017-05-12 10:41:2610.06.212.91-90.06OFF COAST OF CENTRAL AMERICA
2017-05-10 23:23:3610.06.8-56.42-25.74SOUTH SANDWICH ISLANDS REGION
2017-05-10 07:59:5710.05.651.68-178.38ANDREANOF ISLANDS, ALEUTIAN IS.
2017-05-09 13:52:11179.06.8-14.62167.37VANUATU ISLANDS
2017-05-09 01:54:1410.06.024.44126.29RYUKYU ISLANDS, JAPAN
2017-05-08 17:00:4710.06.451.81-178.57ANDREANOF ISLANDS, ALEUTIAN IS.
2017-05-08 15:47:3022.85.951.13-177.08ANDREANOF ISLANDS, ALEUTIAN IS.
2017-05-08 15:31:2617.05.551.10-177.19ANDREANOF ISLANDS, ALEUTIAN IS.
2017-05-03 04:47:1310.06.039.5071.45TAJIKISTAN
2017-05-01 14:18:1510.06.059.74-136.70SOUTHEASTERN ALASKA
2017-05-01 12:31:542.26.259.84-136.70SOUTHEASTERN ALASKA
2017-04-28 20:23:1941.76.85.48125.08MINDANAO, PHILIPPINES
2017-04-27 14:46:3319.05.751.26178.62RAT ISLANDS, ALEUTIAN ISLANDS
2017-04-24 21:38:2510.07.1-33.06-72.04OFF COAST OF CENTRAL CHILE
2017-04-18 17:49:5510.76.0-2.73-75.31PERU-ECUADOR BORDER REGION
2017-04-18 17:11:47626.16.0-18.05-178.40FIJI ISLANDS REGION
2017-04-15 08:19:41135.16.2-23.24-67.65CHILE-ARGENTINA BORDER REGION
2017-04-05 06:09:1210.06.135.8660.39NORTHERN AND CENTRAL IRAN
2017-04-04 22:08:4012.95.551.27-176.44ANDREANOF ISLANDS, ALEUTIAN IS.
2017-04-03 17:40:1511.66.5-22.6225.15BOTSWANA
2017-03-29 04:09:2422.86.656.92162.73NEAR EAST COAST OF KAMCHATKA
2017-03-27 10:50:1910.06.152.80172.20NEAR ISLANDS, ALEUTIAN ISLANDS
2017-03-19 15:43:254.26.0-8.15160.74SOLOMON ISLANDS
2017-03-14 02:51:1610.06.06.1392.32NICOBAR ISLANDS, INDIA REGION
2017-03-05 22:47:5428.96.5-6.01149.34NEW BRITAIN REGION, P.N.G.
2017-03-02 02:11:3076.95.559.59-152.61SOUTHERN ALASKA
2017-03-01 10:39:4958.25.552.17-173.36ANDREANOF ISLANDS, ALEUTIAN IS.
2017-02-24 17:28:43396.16.9-23.20-178.85SOUTH OF FIJI ISLANDS
2017-02-21 14:09:04597.66.5-19.28-63.90SOUTHERN BOLIVIA
2017-02-18 12:10:15200.66.3-23.92-66.69JUJUY PROVINCE, ARGENTINA
2017-02-10 14:03:4527.96.59.90125.46MINDANAO, PHILIPPINES
2017-02-07 22:03:5410.06.325.2163.24SOUTHWESTERN PAKISTAN
2017-01-22 04:30:24153.88.0-6.27155.12SOLOMON ISLANDS
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