gem/oq-engine
Feb 2025 – Apr 2026
9 Months active
Languages Used
PythonN/ACSVNone
Technical Skills
API DevelopmentBackend DevelopmentFull Stack DevelopmentSeismic Hazard AnalysisData ExportData Processing
manuela.villani@globalquakemodel.org
PROFILE
Manuela.villani@globalquakemodel.org
Over nine months, contributed to the gem/oq-engine repository by building and refining seismic hazard analysis and risk assessment workflows. Leveraging Python, Pandas, and CSV data handling, delivered features such as ASCE7/ASCE41 seismic parameter calculations, regional model expansion, and robust export pipelines. The work included refactoring backend logic for maintainability, enhancing data validation, and integrating geospatial datasets for broader coverage. Addressed edge cases and improved test reliability through targeted bug fixes and code cleanup. These efforts resulted in more accurate, configurable hazard outputs and streamlined data exports, supporting engineering assessments and enabling reliable, standards-compliant seismic risk modeling.
Overall Statistics
Feature vs Bugs
55%Features
Repository Contributions
62Total
Bugs
9
Commits
62
Features
11
Lines of code
2,508
Activity Months9
Your Network
47 peopleSame Organization
@globalquakemodel.org13
Shared Repositories
34
Work History
April 2026
3 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for gem/oq-engine focusing on delivered features, bug fixes, business impact, and technical skills demonstrated.
3 Commits • 1 Features
Apr 1, 2026April 2026 monthly summary for gem/oq-engine focusing on delivered features, bug fixes, business impact, and technical skills demonstrated.
April 2026
November 2025
2 Commits
Nov 1, 2025Month: 2025-11. In gem/oq-engine, delivered seismic data integrity fixes and multi-site imt_table retrieval standardization. Consolidated two commits addressing data integrity: (1) edge-case handling and output validation for seismicity classifications and spectral outputs; (2) standardized imt_table retrieval for consistent data handling across sites. These changes reduce risk of data misclassification, improve reliability of seismic outputs, and enable uniform analytics across sites. Result: improved data quality, easier maintenance, and stronger downstream analytics. Technologies demonstrated include data validation, edge-case handling, multi-site data retrieval, and test improvement.
November 2025
2 Commits
Nov 1, 2025Month: 2025-11. In gem/oq-engine, delivered seismic data integrity fixes and multi-site imt_table retrieval standardization. Consolidated two commits addressing data integrity: (1) edge-case handling and output validation for seismicity classifications and spectral outputs; (2) standardized imt_table retrieval for consistent data handling across sites. These changes reduce risk of data misclassification, improve reliability of seismic outputs, and enable uniform analytics across sites. Result: improved data quality, easier maintenance, and stronger downstream analytics. Technologies demonstrated include data validation, edge-case handling, multi-site data retrieval, and test improvement.
October 2025
15 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for gem/oq-engine focused on delivering robust seismic hazard calculations and reliable export pipelines in alignment with ASCE 7/41 standards. Key improvements include hardening the ASCE 7 and ASCE 41 calculation logic and the export path, better handling of zero hazard scenarios, and refined site data association to produce more reliable hazard outputs. ASCE41-23 output accuracy and parameter exports were enhanced with corrected data sources for seismic parameters, updated indexing, and improved rounding to ensure exports reflect true values. Major bugs fixed include zero hazard calculations for ASCE 41-17 corrected by removing erroneous percentile keys, preventing duplicate processing of site class identifiers, and internal debugging cleanup to streamline the calculation code. Test suite stabilization addressed data type inconsistencies and parsing differences to ensure CI reliability. Overall impact: Increased reliability and accuracy of seismic hazard calculations and export results, reducing downstream errors and improving decision-making for engineering assessments. Strengthened code quality, maintainability, and test coverage across the ASCE calculation and export workflows. Technologies/skills demonstrated: Python-based calculation and export pipelines, data handling and correction for seismic parameters, indexing and rounding for precise exports, type-safe test data handling, debugging and code cleanup, and robust test suite maintenance.
15 Commits • 2 Features
Oct 1, 2025October 2025 monthly summary for gem/oq-engine focused on delivering robust seismic hazard calculations and reliable export pipelines in alignment with ASCE 7/41 standards. Key improvements include hardening the ASCE 7 and ASCE 41 calculation logic and the export path, better handling of zero hazard scenarios, and refined site data association to produce more reliable hazard outputs. ASCE41-23 output accuracy and parameter exports were enhanced with corrected data sources for seismic parameters, updated indexing, and improved rounding to ensure exports reflect true values. Major bugs fixed include zero hazard calculations for ASCE 41-17 corrected by removing erroneous percentile keys, preventing duplicate processing of site class identifiers, and internal debugging cleanup to streamline the calculation code. Test suite stabilization addressed data type inconsistencies and parsing differences to ensure CI reliability. Overall impact: Increased reliability and accuracy of seismic hazard calculations and export results, reducing downstream errors and improving decision-making for engineering assessments. Strengthened code quality, maintainability, and test coverage across the ASCE calculation and export workflows. Technologies/skills demonstrated: Python-based calculation and export pipelines, data handling and correction for seismic parameters, indexing and rounding for precise exports, type-safe test data handling, debugging and code cleanup, and robust test suite maintenance.
October 2025
September 2025
6 Commits • 1 Features
Sep 1, 2025Sep 2025 highlights for gem/oq-engine: - Key features delivered: Seismic Hazard Analysis Workflow Overhaul with ASCE7/ASCE41 computations; streamlined AELO/MCE workflow; added data export for ASCE41/MCE data. - Major bugs fixed: Stabilized AELO/MCE integration, addressed ASCE compatibility gaps, and hardened post-processing paths to prevent edge-case failures. - Overall impact: Accelerated hazard analysis delivery, improved compliance with ASCE standards, and enabled direct client-ready data exports; reduced manual steps and improved reliability. - Technologies/skills demonstrated: large-scale workflow refactor, ASCE standards integration, data export design, post-processing simplification, and commit-driven maintainable codebase changes.
September 2025
6 Commits • 1 Features
Sep 1, 2025Sep 2025 highlights for gem/oq-engine: - Key features delivered: Seismic Hazard Analysis Workflow Overhaul with ASCE7/ASCE41 computations; streamlined AELO/MCE workflow; added data export for ASCE41/MCE data. - Major bugs fixed: Stabilized AELO/MCE integration, addressed ASCE compatibility gaps, and hardened post-processing paths to prevent edge-case failures. - Overall impact: Accelerated hazard analysis delivery, improved compliance with ASCE standards, and enabled direct client-ready data exports; reduced manual steps and improved reliability. - Technologies/skills demonstrated: large-scale workflow refactor, ASCE standards integration, data export design, post-processing simplification, and commit-driven maintainable codebase changes.
August 2025
9 Commits • 2 Features
Aug 1, 2025Concise monthly performance summary for 2025-08 focused on delivering data quality and visualization improvements in gem/oq-engine, with a clear naming strategy and reduced output noise.
9 Commits • 2 Features
Aug 1, 2025Concise monthly performance summary for 2025-08 focused on delivering data quality and visualization improvements in gem/oq-engine, with a clear naming strategy and reduced output noise.
August 2025
May 2025
1 Commits
May 1, 2025Month 2025-05 monthly summary focusing on business value and technical achievements for gem/oq-engine. Focused on reliability improvements in hazard parameter computation by making retrieval conditional on ASCE_version and vs30. A targeted bug fix (commit ed414f711376e49c850760467e9d6e93c16deeb4) improved zero hazard handling for ASCE07. This work enhances accuracy, compliance with ASCE standards, and readiness for production QA.
May 2025
1 Commits
May 1, 2025Month 2025-05 monthly summary focusing on business value and technical achievements for gem/oq-engine. Focused on reliability improvements in hazard parameter computation by making retrieval conditional on ASCE_version and vs30. A targeted bug fix (commit ed414f711376e49c850760467e9d6e93c16deeb4) improved zero hazard handling for ASCE07. This work enhances accuracy, compliance with ASCE standards, and readiness for production QA.
April 2025
7 Commits • 2 Features
Apr 1, 2025In April 2025, gem/oq-engine delivered targeted seismic design improvements, focusing on accuracy, maintainability, and test discipline. Key outcomes include a refactor of ASCE7-16 seismic design calculations with dictionary-based parameter handling, removal of redundant parameters, extraction of seismicity classification into a dedicated get_seismicity_class, and alignment of test data for ASCE7-16. Additionally, seismic parameter enhancements were introduced in the AELO engine (Sd/Sm) and Ss/S1 handling was updated to support vs30-based logic for soil class BC, accompanied by changelog updates. These changes improve reliability, reduce design drift, and enable faster future iteration, while maintaining strong test coverage and documentation.
7 Commits • 2 Features
Apr 1, 2025In April 2025, gem/oq-engine delivered targeted seismic design improvements, focusing on accuracy, maintainability, and test discipline. Key outcomes include a refactor of ASCE7-16 seismic design calculations with dictionary-based parameter handling, removal of redundant parameters, extraction of seismicity classification into a dedicated get_seismicity_class, and alignment of test data for ASCE7-16. Additionally, seismic parameter enhancements were introduced in the AELO engine (Sd/Sm) and Ss/S1 handling was updated to support vs30-based logic for soil class BC, accompanied by changelog updates. These changes improve reliability, reduce design drift, and enable faster future iteration, while maintaining strong test coverage and documentation.
April 2025
March 2025
14 Commits • 1 Features
Mar 1, 2025March 2025 summary for gem/oq-engine: Implemented SDS/SD1/Sd1/Sm1 seismic design parameter calculations and CSV export with ASCE7-16/22 compatibility, integrated into the ASCE7 calculation flow and reporting. Fixed test data alignment for ASCE7-16/22 and ASCE41 updates to ensure tests reflect correct business behavior. Result: higher accuracy in seismic parameter reporting, compliant design parameters across ASCE7 variants, and robust test coverage enabling reliable downstream workflows. Demonstrated proficiency in seismic design modeling, ASCE7 standards adaptation, CSV export, and test data management.
March 2025
14 Commits • 1 Features
Mar 1, 2025March 2025 summary for gem/oq-engine: Implemented SDS/SD1/Sd1/Sm1 seismic design parameter calculations and CSV export with ASCE7-16/22 compatibility, integrated into the ASCE7 calculation flow and reporting. Fixed test data alignment for ASCE7-16/22 and ASCE41 updates to ensure tests reflect correct business behavior. Result: higher accuracy in seismic parameter reporting, compliant design parameters across ASCE7 variants, and robust test coverage enabling reliable downstream workflows. Demonstrated proficiency in seismic design modeling, ASCE7 standards adaptation, CSV export, and test data management.
February 2025
5 Commits • 2 Features
Feb 1, 2025February 2025 (gem/oq-engine): Delivered decisive seismic hazard analysis enhancements, expanded regional coverage, and tightened validation, delivering clearer configurability, higher accuracy, and stronger robustness for hazard assessments.
5 Commits • 2 Features
Feb 1, 2025February 2025 (gem/oq-engine): Delivered decisive seismic hazard analysis enhancements, expanded regional coverage, and tightened validation, delivering clearer configurability, higher accuracy, and stronger robustness for hazard assessments.
February 2025
Activity
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Quality Metrics
Correctness83.4%
Maintainability85.4%
Architecture79.4%
Performance75.8%
AI Usage20.0%
Skills & Technologies
Programming Languages
CSVN/ANonePython
Technical Skills
API DevelopmentAPI IntegrationBackend DevelopmentCSV FormattingCode CleanupCode OrganizationCode RefactoringCode RenamingData AnalysisData ExportData FilteringData ManagementData ProcessingData ValidationData Visualization
Repositories Contributed To
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