EPA UIC NTW - Class II Induced Seismicity Paper
Still the de facto federal playbook for deciding when to collect extra data, throttle rates, or shut in wells that trigger earthquakes.
Access resourceInduced Seismicity Resource Hub
This stack keeps you honest when injection programs wake up a fault: the federal authority, state directives, science-grade hazard models, and the papers stakeholders actually cite.
Use it to brief boards, negotiate permit conditions, or design traffic-light systems before Mw 5 headlines hit Twitter.
Federal Regulatory Backbone
Still the de facto federal playbook for deciding when to collect extra data, throttle rates, or shut in wells that trigger earthquakes.
Access resourceLanding page for all NTW technical memoranda, including the induced seismicity guide regulators cite during enforcement.
Access resourceOverview of how Class II and Class VI wells fall under the Safe Drinking Water Act's no-endangerment standard instead of a bespoke seismic rule.
Access resourceSite characterization, Area of Review, and pressure management obligations that explicitly require fault stability and seismic monitoring plans.
Access resourceExplains how EPA oversight, state primacy, and federal R&D interact when Class II disposal wells or CO2 storage projects rattle the basin.
Access resourceLegacy CRS primer that still frames the science, regulatory gaps, and Oklahoma case study policymakers lean on.
Access resourceComparative map of seven state Class II programs plus EPA, highlighting notification triggers, traffic light systems, and enforcement authorities.
Access resourceState Playbooks & Enforcement
Defines the first wave of Arbuckle-group volume reductions, depth limits, and monitoring gear requirements for high-rate SWDs.
Access resourceArea-specific directive that tightens injection ceilings and forces rapid data delivery when seismic swarms migrate northwest.
Access resourcePost-mortem showing how plugging deep wells and slashing volumes collapsed earthquake rates after the 2015-2016 peak.
Access resourceOutlines spacing guidance, data expectations, and siting criteria for disposal wells near active zones.
Access resourceExplains how SRAs like Gardendale give the commission authority to suspend, modify, or deny permits inside earthquake clusters.
Access resourceRequires static bottom-hole pressure data and high-frequency volume reporting so the commission can watch pressure diffusion in SRAs.
Access resourceNews coverage of the Blackbuck shutdown orders that shows how SRA authority looks in practice.
Access resourceMemo documenting Colorado's early decision to add seismic reviews to every Class II permit after the Raton Basin sequence.
Access resourceRocky Mountain Mineral Law Foundation paper comparing how multiple states weave seismic triggers into injection permitting.
Access resourceMajor Reports & Technical Guides
Foundational 2013 study recommending baseline monitoring, probabilistic hazard updates, and traffic-light systems across energy technologies.
Access resourceFour-page executive summary you can drop into board slides when someone asks for the elevator pitch.
Access resourceUSGS roadmap that defines research priorities for oil and gas, geothermal, and CO2 storage induced events.
Access resourceContext for Pawnee, Cushing, and other central U.S. events plus core FAQs for stakeholders.
Access resourceExplains why a few percent of the 40,000+ Class II wells create most of the problems and how the agency differentiates natural vs induced.
Access resourceOne-year hazard forecasts that explicitly include induced events, useful when you need to talk insurance and design loads.
Access resourceTemporary seismic deployments and data products regulators can request when approving high-risk projects.
Access resourceState-driven manual covering wastewater, hydraulic fracturing, and CCUS with concrete monitoring and traffic-light steps.
Access resourceGateway to StatesFirst, EXCHANGE, and other practitioner decks for sharing anomalies across programs.
Access resourceAcademic Reviews & Hazard Science
Global synthesis of how pore pressure diffusion on pre-existing faults drives induced events across industries.
Access resourceHiQuake database analysis of 700+ sequences that proves Mw 5+ induced events are rare but real.
Access resourceModern review tying Oklahoma and mid-continent case studies to rate, depth, and fault orientation physics.
Access resourceData-rich Science paper proving that high-rate Class II wells explain the U.S. mid-continent seismicity surge.
Access resourceDerives conservative Mmax estimates proportional to total injected volume, a staple for risk matrices.
Access resourceNature Communications model linking injection rate reductions to hazard declines with realistic time lags.
Access resourceScience paper that tied Jones and Prague sequences directly to wastewater injection into basement faults.
Access resourceCompanion Science article that quantifies wastewater links using statistical attribution.
Access resourceShows depletion and production swings can matter almost as much as disposal in critically stressed basins.
Access resourceGSL special publication connecting induced seismicity risk management to CO2, gas, and hydrogen storage projects.
Access resourceFirehose-style review summarizing triggering physics, monitoring strategies, and open research questions.
Access resourceWhy This Matters
Induced seismicity governance is really a Safe Drinking Water Act story - UIC permits already have the authority, the work is enforcing it before Mw 5s trend on social.
Traffic-light systems only work when paired with real-time injection data, bottom-hole pressures, and temporary seismic networks you can deploy overnight.
Physics-based hazard forecasts are finally catching up: combine McGarr-style Mmax limits with Langenbruch-Zoback rate models and you have board-ready risk numbers.
Every successful mitigation effort looked the same - baseline monitoring, rapid data sharing, and a regulator willing to shut the valves when thresholds trip.
Send subsurface data, seismic monitoring requests, or policy briefs to info@envitrace.com and we will help translate them into pressure thresholds, monitoring plans, and decision support inside LAPIS.