CrisisLex: All 26 Crisis Events (Cumulative)
A Twitter dataset of 27,933 tweets across 26 crisis events (2012-2013), collected by Olteanu et al. via Twitter API during 26 crisis events. Each record contains tweet text, crisis type, country, event name. The dataset is notable for its Systematically collected dataset of 26 crisis events with balanced sampling across event types, enabling comparative analysis of social media communications across different crises. Cumulative version combines all events into a single corpus.. Intended for research into crisis informatics, disaster response, social media analysis, cross-crisis comparison, emergency communication patterns, situation awareness, multi-event NLP benchmarking.
Cite this dataset at
crisislex-cumulative.echo.directory
Analytics
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Computed over the full corpus.
Record
- Catalog key
crisislex-cumulative- Authors
- Olteanu, Alexandra; Vieweg, Sarah; Castillo, Carlos
- Year
- 2015
- Source paper
- What to Expect When the Unexpected Happens: Social Media Communications Across Crises
- DOI / arXiv
- 10.1145/2675133.2675242
- License
- Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) (CC-BY-NC-SA-4.0)
- Records
- 27,933
- Text corpus
- tweet text
- Languages
- en
- Collected
- 2012-2013 (2010s)
- Region
- Global (inferred: the platform is used worldwide)
Provenance
- Originally published at
- https://crisislex.org/ link checked
- Hosted copy
- Mirrored on echo.directory on 2026-10-02, 20.4 MB across 54 files. Checksums in MANIFEST.json.
How to cite
BibTeX
@misc{echo2026,
title = {ECHO: Exploratory Compendium of Humanity Online},
author = {Switzer, Braden and Zafarani, Reza},
year = {2026},
url = {https://echo.directory},
note = {Syracuse University}
}
@inproceedings{olteanu2015expect,
author = {Olteanu, Alexandra and Vieweg, Sarah and Castillo, Carlos},
title = {What to Expect When the Unexpected Happens: Social Media Communications Across Crises},
year = {2015},
doi = {10.1145/2675133.2675241},
booktitle = {Proceedings of the ACM 2015 Conference on Computer Supported Cooperative Work and Social Computing},
series = {CSCW '15},
publisher = {ACM},
address = {Vancouver, BC, Canada}
} APA
Switzer, B., & Zafarani, R. (2026). ECHO: Exploratory Compendium of Humanity Online [Data repository]. Syracuse University. https://echo.directory
Olteanu, A., Vieweg, S., & Castillo, C. (2015). CrisisLex: All 26 Crisis Events (Cumulative) [Data set]. https://doi.org/10.1145/2675133.2675242
MLA
Switzer, Braden, and Reza Zafarani. ECHO: Exploratory Compendium of Humanity Online. Syracuse University, 2026, echo.directory.
Olteanu, Alexandra, et al. CrisisLex: All 26 Crisis Events (Cumulative). 2015, doi.org/10.1145/2675133.2675242.