{"multigmpe": {"SA(1.0)": {"gmpes": [{"gmpes": ["[ParkerEtAl2020SSlab]\nregion = \"AK\"", "[AbrahamsonGulerce2020SSlab]\nregion = \"USA-AK\"", "[KuehnEtAl2020SSlab]\nregion = \"USA-AK\""], "weights": [0.3333, 0.3333, 0.3334], "name": "subduction_slab_alaska"}], "weights": [1.0], "name": "gmpe_a2026idihgp_custom"}, "SA(0.3)": {"gmpes": [{"gmpes": ["[ParkerEtAl2020SSlab]\nregion = \"AK\"", "[AbrahamsonGulerce2020SSlab]\nregion = \"USA-AK\"", "[KuehnEtAl2020SSlab]\nregion = \"USA-AK\""], "weights": [0.3333, 0.3333, 0.3334], "name": "subduction_slab_alaska"}], "weights": [1.0], "name": "gmpe_a2026idihgp_custom"}, "SA(3.0)": {"gmpes": [{"gmpes": ["[ParkerEtAl2020SSlab]\nregion = \"AK\"", "[AbrahamsonGulerce2020SSlab]\nregion = \"USA-AK\"", "[KuehnEtAl2020SSlab]\nregion = \"USA-AK\""], "weights": [0.3333, 0.3333, 0.3334], "name": "subduction_slab_alaska"}], "weights": [1.0], "name": "gmpe_a2026idihgp_custom"}, "PGA": {"gmpes": [{"gmpes": ["[ParkerEtAl2020SSlab]\nregion = \"AK\"", "[AbrahamsonGulerce2020SSlab]\nregion = \"USA-AK\"", "[KuehnEtAl2020SSlab]\nregion = \"USA-AK\""], "weights": [0.3333, 0.3333, 0.3334], "name": "subduction_slab_alaska"}], "weights": [1.0], "name": "gmpe_a2026idihgp_custom"}, "PGV": {"gmpes": [{"gmpes": ["[ParkerEtAl2020SSlab]\nregion = \"AK\"", "[AbrahamsonGulerce2020SSlab]\nregion = \"USA-AK\"", "[KuehnEtAl2020SSlab]\nregion = \"USA-AK\""], "weights": [0.3333, 0.3333, 0.3334], "name": "subduction_slab_alaska"}], "weights": [1.0], "name": "gmpe_a2026idihgp_custom"}}, "input": {"event_information": {"depth": "80.6862", "event_id": "a2026idihgp", "eventsource": "AK", "netid": "AK", "eventsourcecode": "a2026idihgp", "id": "a2026idihgp", "productcode": "a2026idihgp", "productsource": "ak", "producttype": "shakemap", "event_ref": "Origin", "fault_ref": "Origin", "intensity_observations": "0", "latitude": "57.6087", "longitude": "-155.515", "location": "90 km (56 miles) W of Larsen Bay", "magnitude": "3.51768", "origin_time": "2026-04-26T02:54:06.864699Z", "seismic_stations": "0", "src_mech": "ALL", "event_description": "90 km (56 miles) W of Larsen Bay", "event_type": "ACTUAL", "origin_reviewed": "unknown"}}, "strec": {"TectonicRegion": "Subduction", "FocalMechanism": "ALL", "TensorType": "composite", "TensorSource": "composite", "KaganAngle": 63.5262537466409, "CompositeVariability": 1.072332334712954, "NComposite": 3, "DistanceToStable": 820.0521917646299, "DistanceToActive": 179.5802292419582, "DistanceToSubduction": 0.0, "DistanceToVolcanic": 3017.0590443402707, "Oceanic": false, "DistanceToOceanic": 290.42637633365905, "DistanceToContinental": 0.0, "SlabModelRegion": "Alaska-Aleutians", "SlabModelDepth": 60.161773681640625, "SlabModelDepthUncertainty": 18.700773239135742, "SlabModelDip": 27.71554946899414, "SlabModelStrike": 224.104736328125, "SlabModelMaximumDepth": 45, "ProbabilityActive": 0.0, "ProbabilityStable": 0.0, "ProbabilitySubduction": 1.0, "ProbabilityVolcanic": 0.0, "ProbabilitySubductionCrustal": 0.0, "ProbabilitySubductionInterface": 0.0, "ProbabilitySubductionIntraslab": 1.0, "ProbabilityActiveDeep": 0.0, "ProbabilityStableShallow": 0.0, "ProbabilityVolcanicShallow": 0.0, "DistanceToBackarc": 0.0, "ProbabilityActiveShallow": 0.0}, "output": {"ground_motions": {"SA(1.0)": {"units": "g", "bias": "0.0", "max_grid": "0.0", "max": "0.0"}, "SA(0.3)": {"units": "g", "bias": "0.0", "max_grid": "0.003", "max": "0.003"}, "SA(3.0)": {"units": "g", "bias": "0.0", "max_grid": "0.0", "max": "0.0"}, "MMI": {"units": "intensity", "bias": "0.0", "max_grid": "2.196", "max": "2.043"}, "PGA": {"units": "g", "bias": "0.0", "max_grid": "0.002", "max": "0.001"}, "PGV": {"units": "cms", "bias": "0.0", "max_grid": "0.058", "max": "0.049"}}, "map_information": {"grid_points": {"longitude": "805", "latitude": "435", "units": ""}, "grid_spacing": {"longitude": "0.0083333", "latitude": "0.0083333", "units": "degrees"}, "grid_span": {"longitude": "6.7", "latitude": "3.617", "units": "degrees"}, "min": {"longitude": "-158.683", "latitude": "55.75", "units": "degrees"}, "max": {"longitude": "-151.983", "latitude": "59.367", "units": "degrees"}}, "uncertainty": {"grade": "--", "mean_uncertainty_ratio": null, "total_flagged_mi": "0", "total_flagged_pgm": "0"}}, "processing": {"ground_motion_modules": {"gmpe": {"module": "gmpe_a2026idihgp_custom", "reference": ""}, "ipe": {"module": "VirtualIPE", "reference": ""}, "gmice": {"module": "WGRW12", "reference": ""}, "ccf": {"module": "LothBaker2013", "reference": ""}, "basin_correction": {"module": "None", "reference": ""}, "directivity": {"module": "None", "reference": ""}}, "model_flags": {"no_macroseismic": false, "no_seismic": false, "no_rupture": false}, "miscellaneous": {"bias_max_dsigma": "1.5", "bias_max_mag": "7.0", "bias_max_range": "120.0", "median_dist": "False", "do_outliers": true, "outlier_deviation_level": "3.0", "outlier_max_mag": "7.0"}, "shakemap_versions": {"shakemap_revision": "4.4.6", "shakemap_revision_id": "4.4.6", "shakemap_modules_revision": "1.1.13", "esi_shakelib_revision": "1.1.13", "process_time": "2026-04-26T02:56:21Z", "map_version": 1, "map_comment": "automatic run", "map_data_history": [["2026-04-26T02:56:16Z", "ak", 1, "automatic run"]], "map_status": "automatic"}, "site_response": {"vs30default": "760.0", "site_correction": "GMPE native"}}}