A magnitude ML 1.0 earthquake occured in region: 4 km SE Dozza (BO), on
and geographic coordinates (lat, lon) 44.3300, 11.6610 at 33 km depth.
The earthquake was located by: Sala Sismica INGV-Roma.
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 |
---|---|---|---|---|
Dozza | BO | 4 | 6652 | 6652 |
Casalfiumanese | BO | 5 | 3438 | 10090 |
Imola | BO | 5 | 69797 | 79887 |
Riolo Terme | RA | 8 | 5720 | 85607 |
Borgo Tossignano | BO | 8 | 3288 | 88895 |
Castel San Pietro Terme | BO | 10 | 20811 | 109706 |
Castel Bolognese | RA | 11 | 9554 | 119260 |
Fontanelice | BO | 11 | 1943 | 121203 |
Castel Guelfo di Bologna | BO | 12 | 4455 | 125658 |
Casola Valsenio | RA | 12 | 2617 | 128275 |
Mordano | BO | 14 | 4760 | 133035 |
Bagnara di Romagna | RA | 15 | 2429 | 135464 |
Brisighella | RA | 15 | 7639 | 143103 |
Solarolo | RA | 15 | 4488 | 147591 |
Medicina | BO | 17 | 16739 | 164330 |
Castel del Rio | BO | 18 | 1246 | 165576 |
Faenza | RA | 18 | 58541 | 224117 |
Massa Lombarda | RA | 19 | 10653 | 234770 |
Ozzano dell'Emilia | BO | 19 | 13596 | 248366 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.0 | 2021-09-18 23:12:57 |
44.33 | 11.6613 | 33 | 2021-09-18 23:22:48 |
Sala Sismica INGV-Roma | 95605171 |
Field | Value |
---|---|
Time (UTC) | 2021-09-18 23:12:57 ± 0.44 |
Latitude | 44.3300 ± 0.0180 |
Longitude | 11.6613 ± 0.0214 |
Depth (km) | 33 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 95605171 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1961 |
Semi-minor axis of confidence ellipse (meter) | 688 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 148 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1960.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 84 |
Number of associated phases, regardless of their use for origin computation | 11 |
Number of defining phases | 9 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.36 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.33275 |
Number of stations at which the event was observed | 7 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 95605171 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-09-18 23:22:48 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SEI.HHZ. | 2021-09-18T23:13:11.98 | 3.0 | undecidable | manual | S | 0 | ||||
IV.VISG.HHZ. | 2021-09-18T23:13:08.58 | 0.3 | undecidable | manual | S | 229 | 23.8539 | 141 | -0.46 | 68 |
IV.MTRZ.HNN. | 2021-09-18T23:13:08.70 | 0.3 | undecidable | manual | S | 264 | 18.87 | 147 | 0.45 | 68 |
IV.IMOL.EHZ. | 2021-09-18T23:13:06.90 | 0.1 | undecidable | manual | S | 63 | 7.1928 | 166 | -0.12 | 100 |
IV.SEI.HHZ. | 2021-09-18T23:13:06.88 | 3.0 | negative | manual | P | 0.57 | 0 | |||
IV.FIU.EHZ. | 2021-09-18T23:13:05.04 | 0.3 | undecidable | manual | P | 339 | 36.9297 | 127 | -0.45 | 67 |
IV.LMD.HHZ. | 2021-09-18T23:13:04.55 | 0.1 | undecidable | manual | P | 173 | 28.2495 | 135 | 0.06 | 98 |
IV.MTRZ.HNN. | 2021-09-18T23:13:03.95 | 0.3 | undecidable | manual | P | 264 | 18.87 | 147 | 0.38 | 69 |
IV.VISG.HHZ. | 2021-09-18T23:13:03.72 | 0.3 | undecidable | manual | P | 229 | 23.8539 | 141 | -0.31 | 70 |
IV.BRIS.HHZ. | 2021-09-18T23:13:03.46 | 0.1 | negative | manual | P | 144 | 14.3745 | 154 | 0.22 | 97 |
IV.IMOL.EHZ. | 2021-09-18T23:13:02.99 | 0.1 | undecidable | manual | P | 63 | 7.1928 | 166 | 0.13 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHN. | ML:0.8 | 0.000025099999999999997 | 0.16 | AML | other | m | 2021-09-18T23:13:09.24 |
IV.VISG.HHE. | ML:0.6 | 0.0000172 | 0.4 | AML | other | m | 2021-09-18T23:13:09.25 |
IV.BRIS.HHN. | ML:1.1 | 0.000056349999999999994 | 0.24 | AML | other | m | 2021-09-18T23:13:09.86 |
IV.SEI.HHE. | ML:1.1 | 0.0000277 | 0.32 | AML | other | m | 2021-09-18T23:13:12.49 |
IV.SEI.HHN. | ML:1.2 | 0.00004615 | 0.2 | AML | other | m | 2021-09-18T23:13:13.65 |
IV.BRIS.HHE. | ML:1.2 | 0.00006225 | 1.22 | AML | other | m | 2021-09-18T23:13:16.64 |