A magnitude ML 1.0 earthquake occured in region: 5 km W Castel del Rio (BO), on
and geographic coordinates (lat, lon) 44.2360, 11.4490 at 25 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 |
---|---|---|---|---|
Castel del Rio | BO | 5 | 1246 | 1246 |
Fontanelice | BO | 9 | 1943 | 3189 |
Monterenzio | BO | 11 | 6035 | 9224 |
Monghidoro | BO | 11 | 3749 | 12973 |
Loiano | BO | 11 | 4294 | 17267 |
Borgo Tossignano | BO | 12 | 3288 | 20555 |
Casola Valsenio | RA | 14 | 2617 | 23172 |
Firenzuola | FI | 14 | 4726 | 27898 |
Monzuno | BO | 15 | 6328 | 34226 |
Casalfiumanese | BO | 15 | 3438 | 37664 |
Palazzuolo sul Senio | FI | 16 | 1154 | 38818 |
San Benedetto Val di Sambro | BO | 17 | 4315 | 43133 |
Pianoro | BO | 19 | 17460 | 60593 |
Dozza | BO | 20 | 6652 | 67245 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.0 | 2023-04-22 23:35:30 |
44.2358 | 11.4493 | 25 | 2024-03-01 17:18:07 |
Bollettino Sismico Italiano INGV | 117277251 |
Reviewed Rev100 |
ML 1.2 | 2023-04-22 23:35:30 |
44.22 | 11.4598 | 26 | 2023-04-22 23:39:15 |
Sala Sismica INGV-Roma | 116625011 |
Field | Value |
---|---|
Time (UTC) | 2023-04-22 23:35:30 ± 0.53 |
Latitude | 44.2358 ± 0.0198 |
Longitude | 11.4493 ± 0.0238 |
Depth (km) | 25 ± 3 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 117277251 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1920 |
Semi-minor axis of confidence ellipse (meter) | 1840 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 234 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1920.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 143 |
Number of associated phases, regardless of their use for origin computation | 12 |
Number of defining phases | 12 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.41 |
Epicentral distance of station closest to the epicenter (degree) | 0.04766 |
Epicentral distance of station farthest from the epicenter (degree) | 0.28778 |
Number of stations at which the event was observed | 6 |
Number of stations from which data was used for origin computation | 6 |
Field | Value |
---|---|
Value | 1.2 |
Uncertainty | 0.4 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 116625011 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-04-22 23:39:15 |
Field | Value |
---|---|
Value | 1.0 |
Uncertainty | 0.3 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 117277251 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2023-05-12 08:40:21 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.VMGN.HHZ. | 2023-04-22T23:35:42.89 | 0.3 | undecidable | manual | S | 168 | 31.9458 | 123 | 0.54 | 71 |
IV.LMD.HHZ. | 2023-04-22T23:35:41.17 | 0.3 | undecidable | manual | S | 130 | 27.0507 | 128 | -0.11 | 79 |
IV.FNVD.HHZ. | 2023-04-22T23:35:41.77 | 0.6 | undecidable | manual | S | 254 | 27.0507 | 128 | 0.49 | 48 |
IV.SEI.HHZ. | 2023-04-22T23:35:40.35 | 0.3 | undecidable | manual | S | 200 | 21.3675 | 135 | 0.2 | 78 |
IV.MTRZ.HHZ. | 2023-04-22T23:35:39.19 | 0.3 | undecidable | manual | S | 347 | 8.7801 | 159 | 0.9 | 61 |
IV.VMGN.HHZ. | 2023-04-22T23:35:37.56 | 0.6 | undecidable | manual | P | 168 | 31.9458 | 123 | 0.35 | 49 |
IV.VISG.HHZ. | 2023-04-22T23:35:37.37 | 0.3 | undecidable | manual | S | 193 | 5.2947 | 167 | -0.65 | 71 |
IV.FNVD.HHZ. | 2023-04-22T23:35:36.37 | 0.6 | undecidable | manual | P | 254 | 27.0507 | 128 | -0.23 | 51 |
IV.LMD.HHZ. | 2023-04-22T23:35:36.39 | 0.3 | undecidable | manual | P | 130 | 27.0507 | 128 | -0.2 | 77 |
IV.SEI.HHZ. | 2023-04-22T23:35:35.85 | 0.3 | undecidable | manual | P | 200 | 21.3675 | 135 | -0.09 | 79 |
IV.VISG.HHZ. | 2023-04-22T23:35:34.20 | 0.1 | negative | manual | P | 193 | 5.2947 | 167 | -0.51 | 100 |
IV.MTRZ.HHZ. | 2023-04-22T23:35:34.84 | 0.3 | undecidable | manual | P | 347 | 8.7801 | 159 | -0.02 | 82 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VISG.HHE. | ML:1.5 | 0.00018449999999999999 | 0.12 | AML | other | m | 2023-04-22T23:35:37.56 |
IV.VISG.HHN. | ML:1.4 | 0.000145 | 0.1 | AML | other | m | 2023-04-22T23:35:37.66 |
IV.SEI.HHE. | ML:0.8 | 0.000030149999999999998 | 0.32 | AML | other | m | 2023-04-22T23:35:40.60 |
IV.SEI.HHN. | ML:1.1 | 0.000058399999999999997 | 1.48 | AML | other | m | 2023-04-22T23:35:41.74 |
IV.LMD.HHN. | ML:0.9 | 0.0000276 | 0.54 | AML | other | m | 2023-04-22T23:35:41.35 |
IV.LMD.HHE. | ML:0.8 | 0.0000253 | 0.3 | AML | other | m | 2023-04-22T23:35:41.48 |
IV.FNVD.HHN. | ML:0.8 | 0.000025351645 | 0.128 | AML | other | m | 2023-04-22T23:35:42.13 |
IV.FNVD.HHE. | ML:0.6 | 0.000013150115 | 0.1408 | AML | other | m | 2023-04-22T23:35:42.34 |