A magnitude ML 1.5 earthquake occured in region: 5 km W Forlì (FC), on
and geographic coordinates (lat, lon) 44.2350, 11.9800 at 26 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 |
---|---|---|---|---|
Forlì | FC | 5 | 117913 | 117913 |
Castrocaro Terme e Terra del Sole | FC | 7 | 6426 | 124339 |
Faenza | RA | 10 | 58541 | 182880 |
Forlimpopoli | FC | 13 | 13290 | 196170 |
Meldola | FC | 14 | 9970 | 206140 |
Dovadola | FC | 14 | 1653 | 207793 |
Predappio | FC | 15 | 6346 | 214139 |
Bertinoro | FC | 16 | 11059 | 225198 |
Russi | RA | 16 | 12247 | 237445 |
Brisighella | RA | 17 | 7639 | 245084 |
Cotignola | RA | 17 | 7474 | 252558 |
Modigliana | FC | 17 | 4560 | 257118 |
Castel Bolognese | RA | 17 | 9554 | 266672 |
Solarolo | RA | 18 | 4488 | 271160 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-08-10 08:32:37 |
44.2347 | 11.9797 | 26 | 2021-12-29 11:12:33 |
Bollettino Sismico Italiano INGV | 95845541 |
Reviewed Rev100 |
ML 1.6 | 2021-08-10 08:32:37 |
44.2503 | 12.0282 | 10 | 2021-08-10 08:41:50 |
Sala Sismica INGV-Roma | 93913791 |
Field | Value |
---|---|
Time (UTC) | 2021-08-10 08:32:37 ± 0.31 |
Latitude | 44.2347 ± 0.0117 |
Longitude | 11.9797 ± 0.0201 |
Depth (km) | 26 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 95845541 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1620 |
Semi-minor axis of confidence ellipse (meter) | 872 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 295 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1620.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 141 |
Number of associated phases, regardless of their use for origin computation | 18 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.32 |
Epicentral distance of station closest to the epicenter (degree) | 0.08723 |
Epicentral distance of station farthest from the epicenter (degree) | 0.52071 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.3 |
Num. used stations | 18 |
Type of magnitude | ML |
Reference to an origin | 95845541 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-17 09:39:27 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.3 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 93913791 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-10 08:41:50 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.RUFI.EHZ. | 2021-08-10T08:32:56.30 | 0.6 | undecidable | manual | S | 221 | 57.7977 | 107 | 0.39 | 45 |
IV.SEI.HHZ. | 2021-08-10T08:32:55.00 | 0.6 | undecidable | manual | S | 248 | 53.3022 | 109 | 0.22 | 47 |
IV.ASQU.HHZ. | 2021-08-10T08:32:54.70 | 0.3 | undecidable | manual | S | 197 | 50.9157 | 110 | 0.53 | 67 |
IV.VISG.HHZ. | 2021-08-10T08:32:53.10 | 0.6 | undecidable | manual | S | 264 | 43.623 | 114 | 0.73 | 41 |
IV.SFI.EHZ. | 2021-08-10T08:32:51.00 | 0.6 | undecidable | manual | S | 196 | 38.1285 | 117 | -0.03 | 50 |
IV.RUFI.EHZ. | 2021-08-10T08:32:48.08 | 0.6 | undecidable | manual | P | 221 | 57.7977 | 107 | -0.02 | 48 |
IV.LMD.HHZ. | 2021-08-10T08:32:48.20 | 0.6 | undecidable | manual | S | 231 | 27.8499 | 127 | -0.5 | 46 |
IV.SEI.HHZ. | 2021-08-10T08:32:47.52 | 0.6 | undecidable | manual | P | 248 | 53.3022 | 109 | 0.07 | 48 |
IV.ASQU.HHZ. | 2021-08-10T08:32:47.01 | 0.3 | undecidable | manual | P | 197 | 50.9157 | 110 | -0.09 | 72 |
IV.BRSN.HNZ. | 2021-08-10T08:32:46.60 | 0.6 | undecidable | manual | S | 55 | 9.6792 | 157 | 0.96 | 41 |
IV.FAEN.HNZ. | 2021-08-10T08:32:46.10 | 0.6 | undecidable | manual | S | 307 | 10.1787 | 156 | 0.41 | 49 |
IV.BRIS.HHZ. | 2021-08-10T08:32:46.20 | 0.6 | undecidable | manual | S | 266 | 16.9719 | 142 | -0.43 | 48 |
IV.VISG.HHZ. | 2021-08-10T08:32:45.97 | 0.3 | undecidable | manual | P | 264 | 43.623 | 114 | -0.09 | 74 |
IV.SFI.EHZ. | 2021-08-10T08:32:45.09 | 0.1 | undecidable | manual | P | 196 | 38.1285 | 117 | -0.19 | 96 |
IV.LMD.HHZ. | 2021-08-10T08:32:43.46 | 0.1 | undecidable | manual | P | 231 | 27.8499 | 127 | -0.48 | 93 |
IV.BRIS.HHZ. | 2021-08-10T08:32:42.52 | 0.1 | positive | manual | P | 266 | 16.9719 | 142 | -0.22 | 100 |
IV.FAEN.HNZ. | 2021-08-10T08:32:42.23 | 1.0 | undecidable | manual | P | 307 | 10.1787 | 156 | 0.03 | 26 |
IV.BRSN.HNZ. | 2021-08-10T08:32:41.55 | 1.0 | undecidable | manual | P | 55 | 9.6792 | 157 | -0.62 | 22 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.BRIS.HNN. | ML:1.4 | 0.0001365514 | 0.7808 | AML | other | m | 2021-08-10T08:32:45.17 |
IV.BRIS.HHE. | ML:2.1 | 0.00064740175 | 0.2048 | AML | other | m | 2021-08-10T08:32:46.39 |
IV.BRIS.HHN. | ML:2.0 | 0.00047227399999999996 | 0.2624 | AML | other | m | 2021-08-10T08:32:46.52 |
IV.LMD.HHE. | ML:1.8 | 0.000277 | 0.16 | AML | other | m | 2021-08-10T08:32:48.59 |
IV.LMD.HHN. | ML:1.9 | 0.0003045 | 0.16 | AML | other | m | 2021-08-10T08:32:49.59 |
IV.BRIS.HNE. | ML:1.3 | 0.00009723443000000001 | 0.8512 | AML | other | m | 2021-08-10T08:32:50.50 |
IV.SFI.EHN. | ML:1.3 | 0.000065365125 | 0.1408 | AML | other | m | 2021-08-10T08:32:51.80 |
IV.SFI.HNE. | ML:1.7 | 0.000143511045 | 0.1664 | AML | other | m | 2021-08-10T08:32:51.96 |
IV.SFI.EHE. | ML:1.6 | 0.000117093285 | 0.16 | AML | other | m | 2021-08-10T08:32:51.97 |
IV.VISG.HHN. | ML:1.3 | 0.00005006373 | 0.2624 | AML | other | m | 2021-08-10T08:32:54.17 |
IV.VISG.HHE. | ML:1.1 | 0.000033872310000000005 | 0.16 | AML | other | m | 2021-08-10T08:32:54.66 |
IV.SEI.HHE. | ML:1.6 | 0.00007825 | 0.32 | AML | other | m | 2021-08-10T08:32:55.30 |
IV.ASQU.HHE. | ML:1.4 | 0.00005405 | 1.6 | AML | other | m | 2021-08-10T08:32:55.12 |
IV.RUFI.EHE. | ML:1.3 | 0.0000416906825 | 0.3776 | AML | other | m | 2021-08-10T08:32:56.47 |
IV.SEI.HHN. | ML:2.0 | 0.00019600000000000002 | 0.22 | AML | other | m | 2021-08-10T08:32:56.73 |
IV.ASQU.HHN. | ML:1.4 | 0.0000552 | 0.28 | AML | other | m | 2021-08-10T08:32:56.76 |
IV.RUFI.EHN. | ML:1.2 | 0.00003583122 | 0.2624 | AML | other | m | 2021-08-10T08:32:57.81 |
IV.SFI.HNN. | ML:1.5 | 0.00009779697 | 0.9792 | AML | other | m | 2021-08-10T08:33:01.97 |