A magnitude ML 1.6 earthquake occured in region: 5 km NW Castel del Rio (BO), on
and geographic coordinates (lat, lon) 44.2450, 11.4630 at 24 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 |
---|---|---|---|---|
Castel del Rio | BO | 5 | 1246 | 1246 |
Fontanelice | BO | 8 | 1943 | 3189 |
Monterenzio | BO | 10 | 6035 | 9224 |
Borgo Tossignano | BO | 11 | 3288 | 12512 |
Loiano | BO | 12 | 4294 | 16806 |
Monghidoro | BO | 12 | 3749 | 20555 |
Casola Valsenio | RA | 13 | 2617 | 23172 |
Casalfiumanese | BO | 14 | 3438 | 26610 |
Monzuno | BO | 16 | 6328 | 32938 |
Firenzuola | FI | 16 | 4726 | 37664 |
Palazzuolo sul Senio | FI | 16 | 1154 | 38818 |
Pianoro | BO | 18 | 17460 | 56278 |
Dozza | BO | 18 | 6652 | 62930 |
San Benedetto Val di Sambro | BO | 19 | 4315 | 67245 |
Castel San Pietro Terme | BO | 20 | 20811 | 88056 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.6 | 2023-05-04 12:11:31 |
44.2452 | 11.4633 | 24 | 2023-05-04 12:47:39 |
Sala Sismica INGV-Roma | 117019891 |
Field | Value |
---|---|
Time (UTC) | 2023-05-04 12:11:31 ± 0.36 |
Latitude | 44.2452 ± 0.0135 |
Longitude | 11.4633 ± 0.0163 |
Depth (km) | 24 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 117019891 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1433 |
Semi-minor axis of confidence ellipse (meter) | 850 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 221 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1430.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 156 |
Number of associated phases, regardless of their use for origin computation | 15 |
Number of defining phases | 14 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.35 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.32016 |
Number of stations at which the event was observed | 8 |
Number of stations from which data was used for origin computation | 7 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.4 |
Num. used stations | 12 |
Type of magnitude | ML |
Reference to an origin | 117019891 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-05-04 12:47:39 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.OSSC.HHZ. | 2023-05-04T12:11:47.99 | 3.0 | undecidable | manual | P | 1.58 | 0 | |||
IV.BOSL.HHE. | 2023-05-04T12:11:45.06 | 0.6 | undecidable | manual | S | 192 | 35.5422 | 117 | 0.47 | 44 |
IV.VMGN.HHZ. | 2023-05-04T12:11:44.20 | 0.6 | undecidable | manual | S | 170 | 32.745 | 119 | 0.29 | 46 |
IV.FNVD.HHZ. | 2023-05-04T12:11:43.37 | 0.6 | undecidable | manual | S | 253 | 28.3494 | 123 | 0.44 | 44 |
IV.LMD.HHZ. | 2023-05-04T12:11:42.83 | 0.6 | undecidable | manual | S | 134 | 26.8509 | 125 | 0.23 | 47 |
IV.SEI.HHZ. | 2023-05-04T12:11:41.63 | 0.6 | undecidable | manual | S | 202 | 22.755 | 130 | -0.09 | 49 |
IV.MTRZ.HHZ. | 2023-05-04T12:11:40.46 | 0.6 | undecidable | manual | S | 338 | 8.0808 | 159 | 1.05 | 36 |
IV.BOSL.HHE. | 2023-05-04T12:11:39.39 | 0.1 | undecidable | manual | P | 192 | 35.5422 | 117 | 0.21 | 92 |
IV.VMGN.HHZ. | 2023-05-04T12:11:38.87 | 0.1 | undecidable | manual | P | 170 | 32.745 | 119 | 0.08 | 95 |
IV.FNVD.HHZ. | 2023-05-04T12:11:38.05 | 0.3 | undecidable | manual | P | 253 | 28.3494 | 123 | -0.17 | 71 |
IV.VISG.HHZ. | 2023-05-04T12:11:38.82 | 0.6 | undecidable | manual | S | 200 | 6.6933 | 162 | -0.46 | 46 |
IV.SEI.HHZ. | 2023-05-04T12:11:37.20 | 0.1 | positive | manual | P | 202 | 22.755 | 130 | -0.33 | 93 |
IV.LMD.HHZ. | 2023-05-04T12:11:37.81 | 0.1 | undecidable | manual | P | 134 | 26.8509 | 125 | -0.22 | 94 |
IV.MTRZ.HHZ. | 2023-05-04T12:11:36.27 | 0.1 | undecidable | manual | P | 338 | 8.0808 | 159 | 0.07 | 100 |
IV.VISG.HHZ. | 2023-05-04T12:11:35.59 | 0.1 | positive | manual | P | 200 | 6.6933 | 162 | -0.53 | 91 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:0.0 | 0.0004805 | 0.2 | AML | other | m | 2023-05-04T12:11:38.94 |
IV.VISG.HHN. | ML:0.0 | 0.00029049999999999996 | 1.5 | AML | other | m | 2023-05-04T12:11:38.14 |
IV.MTRZ.HHE. | ML:0.0 | 0.000683 | 1.44 | AML | other | m | 2023-05-04T12:11:41.25 |
IV.MTRZ.HNE. | ML:2.0 | 0.0006644999999999999 | 1.42 | AML | other | m | 2023-05-04T12:11:41.26 |
IV.MTRZ.HHN. | ML:0.0 | 0.0006025000000000001 | 0.2 | AML | other | m | 2023-05-04T12:11:41.67 |
IV.MTRZ.HNN. | ML:1.9 | 0.0005785 | 0.22 | AML | other | m | 2023-05-04T12:11:41.57 |
IV.SEI.HHN. | ML:1.5 | 0.000147 | 0.2 | AML | other | m | 2023-05-04T12:11:42.14 |
IV.SEI.HHE. | ML:1.3 | 0.00010190000000000001 | 0.42 | AML | other | m | 2023-05-04T12:11:42.27 |
IV.LMD.HHN. | ML:1.2 | 0.0000655 | 0.22 | AML | other | m | 2023-05-04T12:11:43.80 |
IV.LMD.HHE. | ML:1.0 | 0.000047300000000000005 | 0.14 | AML | other | m | 2023-05-04T12:11:44.85 |
IV.FNVD.HHE. | ML:1.0 | 0.00003625114 | 0.1408 | AML | other | m | 2023-05-04T12:11:44.26 |
IV.FNVD.HHN. | ML:1.3 | 0.000074870485 | 0.1216 | AML | other | m | 2023-05-04T12:11:44.10 |