A magnitude ML 1.1 earthquake occured in region: 4 km NW Casalfiumanese (BO), on
and geographic coordinates (lat, lon) 44.3220, 11.5740 at 23 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 |
---|---|---|---|---|
Casalfiumanese | BO | 4 | 3438 | 3438 |
Borgo Tossignano | BO | 5 | 3288 | 6726 |
Dozza | BO | 6 | 6652 | 13378 |
Fontanelice | BO | 7 | 1943 | 15321 |
Castel San Pietro Terme | BO | 9 | 20811 | 36132 |
Casola Valsenio | RA | 12 | 2617 | 38749 |
Imola | BO | 12 | 69797 | 108546 |
Riolo Terme | RA | 13 | 5720 | 114266 |
Castel del Rio | BO | 13 | 1246 | 115512 |
Monterenzio | BO | 13 | 6035 | 121547 |
Castel Guelfo di Bologna | BO | 15 | 4455 | 126002 |
Ozzano dell'Emilia | BO | 16 | 13596 | 139598 |
Castel Bolognese | RA | 18 | 9554 | 149152 |
Medicina | BO | 18 | 16739 | 165891 |
Brisighella | RA | 19 | 7639 | 173530 |
Pianoro | BO | 20 | 17460 | 190990 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.1 | 2021-04-08 22:22:25 |
44.3217 | 11.5743 | 23 | 2021-04-08 22:35:24 |
Sala Sismica INGV-Roma | 88923041 |
Field | Value |
---|---|
Time (UTC) | 2021-04-08 22:22:25 ± 0.38 |
Latitude | 44.3217 ± 0.0126 |
Longitude | 11.5743 ± 0.0163 |
Depth (km) | 23 ± 2 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 88923041 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 1479 |
Semi-minor axis of confidence ellipse (meter) | 297 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 150 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 1480.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 167 |
Number of associated phases, regardless of their use for origin computation | 16 |
Number of defining phases | 15 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.37 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.46045 |
Number of stations at which the event was observed | 9 |
Number of stations from which data was used for origin computation | 8 |
Field | Value |
---|---|
Value | 1.1 |
Uncertainty | 0.2 |
Num. used stations | 6 |
Type of magnitude | ML |
Reference to an origin | 88923041 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-04-08 22:35:24 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SFI.EHE. | 2021-04-08T22:22:42.31 | 0.6 | undecidable | manual | S | 155 | 51.1155 | 107 | 0.28 | 48 |
IV.RINC.HHN. | 2021-04-08T22:22:42.04 | 0.6 | undecidable | manual | S | 177 | 48.3183 | 108 | 0.71 | 43 |
IV.RONT.HHE. | 2021-04-08T22:22:39.41 | 0.3 | undecidable | manual | S | 197 | 38.1285 | 114 | 0.63 | 69 |
IV.NDIM.HNZ. | 2021-04-08T22:22:38.43 | 3.0 | positive | manual | Pn | 0 | 0 | |||
IV.LMD.HHZ. | 2021-04-08T22:22:36.18 | 0.3 | undecidable | manual | S | 159 | 29.0487 | 122 | -0.46 | 73 |
IV.SFI.EHE. | 2021-04-08T22:22:35.02 | 0.3 | undecidable | manual | P | 155 | 51.1155 | 107 | 0 | 77 |
IV.IMOL.EHZ. | 2021-04-08T22:22:34.40 | 0.3 | undecidable | manual | S | 72 | 13.9749 | 145 | 0.74 | 67 |
IV.RINC.HHN. | 2021-04-08T22:22:34.59 | 0.3 | undecidable | manual | P | 177 | 48.3183 | 108 | -0.03 | 76 |
IV.BRIS.HHZ. | 2021-04-08T22:22:34.14 | 0.3 | undecidable | manual | S | 125 | 18.6702 | 136 | -0.32 | 76 |
IV.VISG.HHZ. | 2021-04-08T22:22:34.34 | 0.3 | undecidable | manual | S | 217 | 18.4704 | 136 | -0.07 | 79 |
IV.RONT.HHE. | 2021-04-08T22:22:33.42 | 0.6 | undecidable | manual | P | 197 | 38.1285 | 114 | 0.28 | 50 |
IV.LMD.HHZ. | 2021-04-08T22:22:31.30 | 0.3 | undecidable | manual | P | 159 | 29.0487 | 122 | -0.61 | 69 |
IV.IMOL.EHZ. | 2021-04-08T22:22:30.22 | 0.3 | undecidable | manual | P | 72 | 13.9749 | 145 | 0.03 | 82 |
IV.BRIS.HHZ. | 2021-04-08T22:22:30.29 | 0.3 | undecidable | manual | P | 125 | 18.6702 | 136 | -0.36 | 75 |
IV.MTRZ.HNZ. | 2021-04-08T22:22:30.29 | 0.3 | undecidable | manual | P | 265 | 11.877 | 149 | 0.27 | 79 |
IV.VISG.HHZ. | 2021-04-08T22:22:30.29 | 0.1 | undecidable | manual | P | 217 | 18.4704 | 136 | -0.34 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.IMOL.HNE. | ML:1.4 | 0.00015691317499999999 | 0.1408 | AML | other | m | 2021-04-08T22:22:34.87 |
IV.IMOL.HNN. | ML:1.3 | 0.000122704905 | 0.1792 | AML | other | m | 2021-04-08T22:22:36.12 |
IV.BRIS.HHE. | ML:0.9 | 0.00004528463 | 0.128 | AML | other | m | 2021-04-08T22:22:34.28 |
IV.BRIS.HHN. | ML:0.9 | 0.000044655429999999995 | 0.1152 | AML | other | m | 2021-04-08T22:22:34.38 |
IV.VISG.HHE. | ML:1.0 | 0.000048963919999999995 | 0.1024 | AML | other | m | 2021-04-08T22:22:35.24 |
IV.VISG.HHN. | ML:1.0 | 0.000051914605 | 0.1408 | AML | other | m | 2021-04-08T22:22:35.16 |