A magnitude ML 1.2 earthquake occured in region: 5 km N Marradi (FI), on
and geographic coordinates (lat, lon) 44.1170, 11.6220 at 9 km depth.
The earthquake was located by: Bollettino Sismico Italiano INGV.
Search earthquakes: Any within 30 km radius
The values of hypocentral coordinates and magnitude may be revised at a later time as more information becomes available.
Municipality | Region | Distance (km) | Inhabitants | Cumulative Inhabitants |
---|---|---|---|---|
Marradi | FI | 5 | 3139 | 3139 |
Palazzuolo sul Senio | FI | 6 | 1154 | 4293 |
Tredozio | FC | 11 | 1212 | 5505 |
Casola Valsenio | RA | 12 | 2617 | 8122 |
Castel del Rio | BO | 14 | 1246 | 9368 |
Modigliana | FC | 14 | 4560 | 13928 |
Portico e San Benedetto | FC | 16 | 756 | 14684 |
Fontanelice | BO | 17 | 1943 | 16627 |
Brisighella | RA | 17 | 7639 | 24266 |
Borgo Tossignano | BO | 18 | 3288 | 27554 |
Rocca San Casciano | FC | 19 | 1910 | 29464 |
Firenzuola | FI | 19 | 4726 | 34190 |
Riolo Terme | RA | 20 | 5720 | 39910 |
Premilcuore | FC | 20 | 799 | 40709 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.2 | 2021-11-16 21:47:04 |
44.1167 | 11.6218 | 9 | 2022-03-30 13:04:16 |
Bollettino Sismico Italiano INGV | 97547371 |
Reviewed Rev100 |
ML 1.2 | 2021-11-16 21:47:05 |
44.1153 | 11.6185 | 8 | 2021-11-16 21:58:42 |
Sala Sismica INGV-Roma | 97503771 |
Field | Value |
---|---|
Time (UTC) | 2021-11-16 21:47:04 ± 0.06 |
Latitude | 44.1167 ± 0.0045 |
Longitude | 11.6218 ± 0.0038 |
Depth (km) | 9 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97547371 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 415 |
Semi-minor axis of confidence ellipse (meter) | 327 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 4 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 420.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 80 |
Number of associated phases, regardless of their use for origin computation | 20 |
Number of defining phases | 20 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.21 |
Epicentral distance of station closest to the epicenter (degree) | 0.07285 |
Epicentral distance of station farthest from the epicenter (degree) | 0.34174 |
Number of stations at which the event was observed | 10 |
Number of stations from which data was used for origin computation | 10 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 97547371 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-18 08:14:34 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.3 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 97503771 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-11-16 21:58:42 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.ASQU.HHZ. | 2021-11-16T21:47:18.02 | 0.3 | undecidable | manual | S | 159 | 37.9287 | 50 | 0.26 | 68 |
IV.MOCL.EHZ. | 2021-11-16T21:47:17.63 | 0.3 | undecidable | manual | S | 251 | 37.2294 | 50 | 0.05 | 71 |
IV.RUFI.EHZ. | 2021-11-16T21:47:16.23 | 0.3 | undecidable | manual | S | 196 | 32.1456 | 50 | 0 | 72 |
IV.SFI.HNZ. | 2021-11-16T21:47:15.29 | 0.3 | undecidable | manual | S | 143 | 29.5482 | 50 | -0.24 | 69 |
IV.BOSL.HHN. | 2021-11-16T21:47:15.32 | 0.6 | undecidable | manual | S | 224 | 28.5492 | 108 | 0.13 | 47 |
IV.MTRZ.HNZ. | 2021-11-16T21:47:14.94 | 1.0 | undecidable | manual | S | 324 | 26.8509 | 109 | 0.31 | 23 |
IV.SEI.HHZ. | 2021-11-16T21:47:13.38 | 0.3 | undecidable | manual | S | 252 | 22.0668 | 113 | 0.29 | 70 |
IV.ASQU.HHZ. | 2021-11-16T21:47:12.34 | 0.1 | undecidable | manual | P | 159 | 37.9287 | 50 | 0.07 | 94 |
IV.MOCL.EHZ. | 2021-11-16T21:47:12.60 | 0.1 | undecidable | manual | P | 251 | 37.2294 | 50 | 0.43 | 88 |
IV.VISG.HHZ. | 2021-11-16T21:47:11.19 | 0.3 | undecidable | manual | S | 298 | 16.9719 | 119 | -0.3 | 70 |
IV.BRIS.HHZ. | 2021-11-16T21:47:11.58 | 0.3 | undecidable | manual | S | 44 | 16.5723 | 119 | 0.19 | 72 |
IV.RUFI.EHZ. | 2021-11-16T21:47:11.11 | 0.1 | undecidable | manual | P | 196 | 32.1456 | 50 | -0.28 | 91 |
IV.MTRZ.HNZ. | 2021-11-16T21:47:10.63 | 0.1 | undecidable | manual | P | 324 | 26.8509 | 109 | 0.17 | 94 |
IV.SFI.HNZ. | 2021-11-16T21:47:10.87 | 0.1 | undecidable | manual | P | 143 | 29.5482 | 50 | -0.12 | 95 |
IV.BOSL.HHN. | 2021-11-16T21:47:10.57 | 0.3 | undecidable | manual | P | 224 | 28.5492 | 108 | -0.22 | 70 |
IV.SEI.HHZ. | 2021-11-16T21:47:09.50 | 0.1 | positive | manual | P | 252 | 22.0668 | 113 | -0.08 | 97 |
IV.LMD.HHZ. | 2021-11-16T21:47:09.17 | 0.3 | undecidable | manual | S | 122 | 8.0808 | 139 | 0.12 | 74 |
IV.VISG.HHZ. | 2021-11-16T21:47:08.35 | 0.1 | positive | manual | P | 298 | 16.9719 | 119 | -0.3 | 93 |
IV.BRIS.HHZ. | 2021-11-16T21:47:08.50 | 0.1 | undecidable | manual | P | 44 | 16.5723 | 119 | -0.09 | 97 |
IV.LMD.HHZ. | 2021-11-16T21:47:07.28 | 0.1 | undecidable | manual | P | 122 | 8.0808 | 139 | 0.04 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:0.8 | 0.00005525 | 0.64 | AML | other | m | 2021-11-16T21:47:11.78 |
IV.VISG.HHN. | ML:0.9 | 0.0000661 | 0.08 | AML | other | m | 2021-11-16T21:47:11.69 |
IV.BRIS.HHN. | ML:1.3 | 0.0001945 | 0.24 | AML | other | m | 2021-11-16T21:47:11.85 |
IV.SEI.HHN. | ML:1.8 | 0.00044500000000000003 | 0.22 | AML | other | m | 2021-11-16T21:47:13.78 |
IV.BRIS.HHE. | ML:1.2 | 0.00014608259 | 0.1024 | AML | other | m | 2021-11-16T21:47:11.90 |
IV.SEI.HHE. | ML:1.3 | 0.00014850000000000003 | 0.76 | AML | other | m | 2021-11-16T21:47:14.52 |