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:

Trabant, C., A. R. Hutko, M. Bahavar, R. Karstens, T. Ahern and R. Aster (2012), Data products at the IRIS DMC: stepping-stones for research and other application, Seismological Research Letters, 83(6), 846:854. doi: 10.1785/0220 120032


— 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: 2036 items found
ppPage: 1 of 21pp
Event Time (UTC)Depth (km)Trigger MagLatitudeLongitudeRegion
2015-03-30 08:48:2510.06.8-15.55-172.92SAMOA ISLANDS REGION
2015-03-30 08:18:0010.06.8-15.41-172.91SAMOA ISLANDS REGION
2015-03-29 23:48:3465.77.7-4.75152.56NEW BRITAIN REGION, P.N.G.
2015-03-28 16:36:52109.46.0-22.20-68.66NORTHERN CHILE
2015-03-23 04:51:37120.96.4-18.38-69.15NORTHERN CHILE
2015-03-18 18:27:2810.06.2-36.10-73.63NEAR COAST OF CENTRAL CHILE
2015-03-17 22:12:2841.76.61.66126.52NORTHERN MOLUCCA SEA
2015-03-10 20:55:43147.26.26.83-73.01NORTHERN COLOMBIA
2015-03-07 22:18:5823.46.0-6.55151.74NEW BRITAIN REGION, P.N.G.
2015-03-07 13:18:2410.05.750.54-173.32ANDREANOF ISLANDS, ALEUTIAN IS.
2015-03-03 10:37:3137.76.4-0.7798.71SOUTHERN SUMATERA, INDONESIA
2015-02-27 13:45:05547.07.0-7.28122.53FLORES SEA
2015-02-22 14:23:1410.06.218.72-106.81OFF COAST OF JALISCO, MEXICO
2015-02-21 10:13:5410.06.139.86143.43OFF EAST COAST OF HONSHU, JAPAN
2015-02-20 04:25:2413.56.339.85143.57OFF EAST COAST OF HONSHU, JAPAN
2015-02-19 13:18:3210.06.5-16.40168.09VANUATU ISLANDS
2015-02-16 23:06:2610.06.839.85142.81NEAR EAST COAST OF HONSHU, JAPAN
2015-02-16 22:00:5310.06.7-55.52-28.25SOUTH SANDWICH ISLANDS REGION
2015-02-13 20:06:3229.76.322.64121.42TAIWAN REGION
2015-02-13 18:59:1110.06.952.59-31.92NORTHERN MID-ATLANTIC RIDGE
2015-02-11 18:57:18190.86.7-23.12-66.60JUJUY PROVINCE, ARGENTINA
2015-02-05 04:40:5410.06.05.20-82.71SOUTH OF PANAMA
2015-02-03 07:16:5416.55.652.33-168.63FOX ISLANDS, ALEUTIAN ISLANDS
2015-02-02 10:49:48172.36.3-32.72-67.06MENDOZA PROVINCE, ARGENTINA
2015-01-30 17:57:5715.16.0-21.25170.16LOYALTY ISLANDS REGION
2015-01-28 21:08:5317.05.840.32-124.60NEAR COAST OF NORTHERN CALIF.
2015-01-28 02:43:19483.66.1-20.91-178.35FIJI ISLANDS REGION
2015-01-23 03:47:27218.56.8-17.00168.53VANUATU ISLANDS
2015-01-18 04:47:38105.95.851.90179.57RAT ISLANDS, ALEUTIAN ISLANDS
2015-01-07 05:07:0810.06.65.83-82.65SOUTH OF PANAMA
2014-12-30 21:17:23598.26.1-20.34-178.55FIJI ISLANDS REGION
2014-12-29 09:29:4137.96.18.60121.50MINDANAO, PHILIPPINE ISLANDS
2014-12-21 11:34:1454.76.62.13126.65NORTHERN MOLUCCA SEA
2014-12-10 21:03:39254.46.125.57122.45TAIWAN REGION
2014-12-08 08:54:5210.06.77.97-82.69SOUTH OF PANAMA
2014-12-07 21:16:3532.06.113.67-91.47NEAR COAST OF GUATEMALA
2014-12-07 01:22:0010.06.8-6.54154.46SOLOMON ISLANDS
2014-12-06 22:05:10117.36.0-6.12130.48BANDA SEA
2014-12-02 05:11:31614.06.66.16123.13MINDANAO, PHILIPPINE ISLANDS
2014-11-26 14:33:4341.16.81.98126.55NORTHERN MOLUCCA SEA
2014-11-22 13:08:1810.06.236.64137.91EASTERN HONSHU, JAPAN
2014-11-22 08:55:, CHINA
2014-11-21 10:10:2048.26.92.23127.08NORTHERN MOLUCCA SEA
2014-11-17 16:52:469.46.2-46.3933.79PRINCE EDWARD ISLANDS REGION
2014-11-17 01:06:0025.26.1-9.55155.15DENTRECASTEAUX ISLANDS REGION
2014-11-16 22:33:2135.06.7-37.84179.76OFF E. COAST OF N. ISLAND, N.Z.
2014-11-15 02:31:4247.07.31.88126.51NORTHERN MOLUCCA SEA
2014-11-10 10:04:2110.06.1-22.77171.45LOYALTY ISLANDS REGION
2014-11-07 03:33:5552.06.4-6.06148.22NEW BRITAIN REGION, P.N.G.
2014-11-03 08:48:2910.06.3-41.7379.96MID-INDIAN RIDGE
2014-11-01 18:57:22421.96.9-19.69-177.80FIJI ISLANDS REGION
2014-11-01 10:59:5510.06.0-31.82-111.18EASTER ISLAND REGION
2014-10-28 03:15:378.06.1-15.30-174.68TONGA ISLANDS
2014-10-20 19:33:2110.06.00.51-77.82COLOMBIA-ECUADOR BORDER REGION
2014-10-14 04:12:3031.56.1-34.92179.97SOUTH OF KERMADEC ISLANDS
2014-10-14 03:51:3540.07.412.58-88.05OFF COAST OF CENTRAL AMERICA
2014-10-11 02:35:4722.06.341.03143.16HOKKAIDO, JAPAN REGION
2014-10-09 02:32:1316.56.6-32.41-111.08SOUTHERN EAST PACIFIC RISE
2014-10-09 02:32:0510.06.6-32.10-110.86SOUTHERN EAST PACIFIC RISE
2014-10-09 02:14:3110.06.8-32.15-110.82SOUTHERN EAST PACIFIC RISE
2014-10-08 02:40:5410.06.223.82-108.42GULF OF CALIFORNIA
2014-10-07 13:49:398.56.223.38100.47YUNNAN, CHINA
2014-09-25 17:51:17101.76.261.97-151.79SOUTHERN ALASKA
2014-09-25 09:13:5010.06.0-9.48156.39SOLOMON ISLANDS
2014-09-24 11:16:12189.36.2-23.85-66.55JUJUY PROVINCE, ARGENTINA
2014-09-17 06:14:46133.97.113.74144.39MARIANA ISLANDS
2014-09-10 02:46:0620.56.5-0.14125.09SOUTHERN MOLUCCA SEA
2014-09-06 06:53:1310.06.1-26.62-114.46EASTER ISLAND REGION
2014-09-04 05:33:4611.86.0-21.40-173.26TONGA ISLANDS
2014-08-24 23:21:45101.07.0-14.59-73.58CENTRAL PERU
2014-08-24 10:20:447.86.038.21-122.32NORTHERN CALIFORNIA
2014-08-23 22:32:2332.06.6-32.69-71.44NEAR COAST OF CENTRAL CHILE
2014-08-18 05:25:5010.06.032.6547.75IRAN-IRAQ BORDER REGION
2014-08-18 02:32:0510.06.232.7447.67IRAN-IRAQ BORDER REGION
2014-08-10 03:43:1741.06.041.16142.18HOKKAIDO, JAPAN REGION
2014-08-06 11:45:2210.06.1-7.27128.05BANDA SEA
2014-08-03 08:30:1310.06.127.25103.43YUNNAN, CHINA
2014-08-03 00:26:4214.06.11.03146.26E. CAROLINE ISLANDS, MICRONESIA
2014-08-03 00:22:0313.06.90.83146.17E. CAROLINE ISLANDS, MICRONESIA
2014-07-29 10:46:1595.16.317.84-95.52OAXACA, MEXICO
2014-07-27 01:28:3710.06.123.72-45.58NORTHERN MID-ATLANTIC RIDGE
2014-07-25 10:54:4910.05.958.36-137.13SOUTHEASTERN ALASKA
2014-07-21 14:54:40616.16.9-19.78-178.44FIJI ISLANDS REGION
2014-07-20 18:32:4760.86.644.63148.73KURIL ISLANDS
2014-07-19 12:27:10227.36.2-15.82-174.45TONGA ISLANDS
2014-07-17 11:49:320.65.860.37-140.35SOUTHEASTERN ALASKA
2014-07-14 07:59:5822.56.45.70126.53MINDANAO, PHILIPPINE ISLANDS
2014-07-13 20:54:1435.76.1-20.25-70.36NEAR COAST OF NORTHERN CHILE
2014-07-11 19:22:0013.36.837.07142.36OFF EAST COAST OF HONSHU, JAPAN
2014-07-08 12:56:26114.06.3-17.62168.36VANUATU ISLANDS
2014-07-07 11:23:5892.27.114.78-92.37NEAR COAST OF CHIAPAS, MEXICO
2014-07-05 09:39:2720.06.11.9396.94OFF W COAST OF NORTHERN SUMATERA
2014-07-04 15:00:2610.06.6-6.20152.82NEW BRITAIN REGION, P.N.G.
2014-07-03 19:50:0520.06.3-30.53-176.53KERMADEC ISLANDS REGION
2014-07-03 19:06:47104.05.752.07178.46RAT ISLANDS, ALEUTIAN ISLANDS
2014-07-03 12:05:2210.05.955.21166.92KOMANDORSKY ISLANDS REGION
2014-07-03 02:56:4122.75.855.30166.87KOMANDORSKY ISLANDS REGION
2014-06-30 19:55:32512.46.228.35138.86BONIN ISLANDS REGION
2014-06-29 17:15:0918.06.7-14.98-175.51SAMOA ISLANDS REGION
2014-06-29 15:52:239.06.4-14.78-175.26SAMOA ISLANDS REGION
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