A magnitude ML 1.5 earthquake occured in region: 1 km NW Premilcuore (FC), on
and geographic coordinates (lat, lon) 43.9840, 11.7740 at 8 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 |
---|---|---|---|---|
Premilcuore | FC | 1 | 799 | 799 |
Portico e San Benedetto | FC | 5 | 756 | 1555 |
Rocca San Casciano | FC | 10 | 1910 | 3465 |
Tredozio | FC | 11 | 1212 | 4677 |
Galeata | FC | 11 | 2516 | 7193 |
Santa Sofia | FC | 12 | 4136 | 11329 |
Civitella di Romagna | FC | 14 | 3786 | 15115 |
San Godenzo | FI | 14 | 1167 | 16282 |
Marradi | FI | 16 | 3139 | 19421 |
Dovadola | FC | 18 | 1653 | 21074 |
Modigliana | FC | 19 | 4560 | 25634 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Bulletin Rev1000 |
ML 1.5 | 2021-08-31 19:55:11 |
43.984 | 11.7738 | 8 | 2021-12-29 11:12:52 |
Bollettino Sismico Italiano INGV | 97689651 |
Reviewed Rev100 |
ML 1.6 | 2021-08-31 19:55:11 |
43.9802 | 11.7682 | 8 | 2021-08-31 20:14:20 |
Sala Sismica INGV-Roma | 94887251 |
Field | Value |
---|---|
Time (UTC) | 2021-08-31 19:55:11 ± 0.05 |
Latitude | 43.9840 ± 0.0027 |
Longitude | 11.7738 ± 0.0037 |
Depth (km) | 8 ± 0 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 1000 -> BULLETIN-INGV |
Event type | earthquake |
Origin ID | 97689651 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 347 |
Semi-minor axis of confidence ellipse (meter) | 145 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 55 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 350.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 43 |
Number of associated phases, regardless of their use for origin computation | 44 |
Number of defining phases | 36 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.17 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.67899 |
Number of stations at which the event was observed | 31 |
Number of stations from which data was used for origin computation | 26 |
Field | Value |
---|---|
Value | 1.5 |
Uncertainty | 0.2 |
Num. used stations | 14 |
Type of magnitude | ML |
Reference to an origin | 97689651 |
Agency | INGV |
Autore | Bollettino Sismico Italiano INGV |
Time of creation (UTC) | 2021-11-22 14:23:46 |
Field | Value |
---|---|
Value | 1.6 |
Uncertainty | 0.4 |
Num. used stations | 30 |
Type of magnitude | ML |
Reference to an origin | 94887251 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2021-08-31 20:14:20 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SACR.HHZ. | 2021-08-31T19:56:47.29 | 3.0 | undecidable | manual | Sn | 4.72 | 0 | |||
IV.SARZ.HHZ. | 2021-08-31T19:56:20.53 | 3.0 | undecidable | manual | Sn | 5.59 | 0 | |||
IV.SACR.HHZ. | 2021-08-31T19:56:07.28 | 3.0 | negative | manual | Pn | 5.1 | 0 | |||
CH.BERNI.HHZ. | 2021-08-31T19:56:00.84 | 3.0 | positive | manual | Pg | 7.73 | 0 | |||
IV.NDIM.HHZ. | 2021-08-31T19:55:44.61 | 3.0 | undecidable | manual | S | -2.19 | 0 | |||
IV.CRTC.HHZ. | 2021-08-31T19:55:40.38 | 3.0 | undecidable | manual | S | 1.13 | 0 | |||
IV.NDIM.HHZ. | 2021-08-31T19:55:29.96 | 3.0 | undecidable | manual | P | -0.89 | 0 | |||
IV.MPPT.EHZ. | 2021-08-31T19:55:28.96 | 0.6 | undecidable | manual | S | 267 | 54.6009 | 50 | 0.07 | 62 |
IV.MOCL.EHZ. | 2021-08-31T19:55:27.13 | 0.6 | undecidable | manual | S | 273 | 47.4192 | 50 | 0.19 | 61 |
IV.CRTC.HHZ. | 2021-08-31T19:55:25.57 | 3.0 | positive | manual | P | -1.04 | 0 | |||
IV.CRE.HHZ. | 2021-08-31T19:55:25.58 | 0.6 | undecidable | manual | S | 161 | 42.9237 | 50 | -0.18 | 62 |
IV.ZCCA.HNZ. | 2021-08-31T19:55:24.51 | 1.0 | undecidable | manual | P | 303 | 75.369 | 50 | -0.06 | 30 |
IV.CAFI.HHZ. | 2021-08-31T19:55:24.85 | 0.6 | undecidable | manual | P | 168 | 74.2701 | 50 | 0.45 | 55 |
IV.CRMI.HHZ. | 2021-08-31T19:55:23.50 | 0.3 | undecidable | manual | P | 252 | 66.8775 | 50 | 0.24 | 87 |
IV.SEI.HHZ. | 2021-08-31T19:55:23.25 | 0.6 | undecidable | manual | S | 283 | 34.0437 | 103 | 0.02 | 65 |
IV.OSSC.HHE. | 2021-08-31T19:55:23.25 | 0.3 | undecidable | manual | P | 220 | 66.2781 | 50 | 0.08 | 90 |
IV.CSNT.HHZ. | 2021-08-31T19:55:23.79 | 1.0 | undecidable | manual | P | 215 | 68.6757 | 50 | 0.25 | 29 |
IV.VISG.HHZ. | 2021-08-31T19:55:23.64 | 0.6 | undecidable | manual | S | 310 | 35.3424 | 102 | -0.04 | 64 |
IV.APEC.HNN. | 2021-08-31T19:55:23.81 | 1.0 | undecidable | manual | P | 132 | 70.0743 | 50 | 0.06 | 30 |
IV.BLLA.EHE. | 2021-08-31T19:55:22.17 | 1.0 | undecidable | manual | P | 72 | 58.2972 | 50 | 0.24 | 30 |
IV.BADI.EHE. | 2021-08-31T19:55:22.52 | 0.6 | undecidable | manual | P | 144 | 64.6908 | 50 | -0.41 | 56 |
IV.BRIS.HHZ. | 2021-08-31T19:55:21.26 | 0.6 | undecidable | manual | S | 359 | 26.6511 | 106 | 0.49 | 59 |
IV.FNVD.HHZ. | 2021-08-31T19:55:21.45 | 0.6 | undecidable | manual | P | 292 | 55.6998 | 50 | -0.09 | 61 |
IV.MPPT.EHZ. | 2021-08-31T19:55:21.45 | 0.3 | undecidable | manual | P | 267 | 54.6009 | 50 | 0.08 | 92 |
IV.SSP9.EHZ. | 2021-08-31T19:55:20.80 | 1.0 | undecidable | manual | P | 148 | 53.7018 | 50 | -0.44 | 29 |
IV.MOCL.EHZ. | 2021-08-31T19:55:20.22 | 0.3 | undecidable | manual | P | 273 | 47.4192 | 50 | -0.04 | 94 |
IV.PARC.HHE. | 2021-08-31T19:55:20.66 | 0.6 | undecidable | manual | P | 135 | 52.6029 | 50 | -0.41 | 58 |
IV.RUFI.EHZ. | 2021-08-31T19:55:20.92 | 0.6 | undecidable | manual | S | 233 | 26.6511 | 106 | 0.18 | 63 |
IV.MTRZ.HNE. | 2021-08-31T19:55:20.16 | 0.6 | undecidable | manual | P | 323 | 45.8208 | 50 | 0.14 | 62 |
IV.CPGN.EHZ. | 2021-08-31T19:55:20.78 | 1.0 | undecidable | manual | P | 115 | 48.2184 | 50 | 0.4 | 29 |
IV.BRSN.HNE. | 2021-08-31T19:55:19.74 | 1.0 | undecidable | manual | P | 36 | 41.3253 | 50 | 0.43 | 29 |
IV.CRE.HHZ. | 2021-08-31T19:55:19.16 | 0.3 | undecidable | manual | P | 161 | 42.9237 | 50 | -0.41 | 88 |
IV.IMOL.HNZ. | 2021-08-31T19:55:19.42 | 0.6 | undecidable | manual | P | 357 | 41.7249 | 50 | 0.04 | 64 |
IV.ASQU.HHZ. | 2021-08-31T19:55:19.02 | 0.6 | undecidable | manual | S | 177 | 20.7681 | 111 | 0.19 | 64 |
IT.FIE.HGE. | 2021-08-31T19:55:19.51 | 1.0 | undecidable | manual | P | 243 | 43.0236 | 50 | -0.08 | 31 |
IV.VISG.HHZ. | 2021-08-31T19:55:18.04 | 0.3 | undecidable | manual | P | 310 | 35.3424 | 102 | -0.33 | 91 |
IV.SEI.HHZ. | 2021-08-31T19:55:17.86 | 0.3 | undecidable | manual | P | 283 | 34.0437 | 103 | -0.25 | 92 |
IV.RUFI.EHZ. | 2021-08-31T19:55:16.69 | 0.3 | undecidable | manual | P | 233 | 26.6511 | 106 | 0.01 | 98 |
IV.BRIS.HHZ. | 2021-08-31T19:55:16.87 | 0.3 | undecidable | manual | P | 359 | 26.6511 | 106 | 0.18 | 95 |
IV.LMD.HHZ. | 2021-08-31T19:55:15.76 | 0.3 | undecidable | manual | S | 333 | 11.6772 | 124 | -0.23 | 97 |
IV.SFI.EHZ. | 2021-08-31T19:55:15.78 | 0.6 | undecidable | manual | S | 146 | 10.5783 | 127 | 0.11 | 66 |
IV.ASQU.HHZ. | 2021-08-31T19:55:15.66 | 0.3 | undecidable | manual | P | 177 | 20.7681 | 111 | 0.09 | 98 |
IV.LMD.HHZ. | 2021-08-31T19:55:13.77 | 0.3 | undecidable | manual | P | 333 | 11.6772 | 124 | -0.15 | 98 |
IV.SFI.EHZ. | 2021-08-31T19:55:13.81 | 0.3 | undecidable | manual | P | 146 | 10.5783 | 127 | 0.07 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.ASQU.HHE. | ML:1.8 | 0.00043700000000000005 | 0.16 | AML | other | m | 2021-08-31T19:55:19.59 |
IV.RUFI.EHE. | ML:1.3 | 0.00012014999999999999 | 0.9 | AML | other | m | 2021-08-31T19:55:21.50 |
IV.RUFI.EHN. | ML:1.4 | 0.00014555000000000001 | 0.3 | AML | other | m | 2021-08-31T19:55:21.38 |
IV.ASQU.HHN. | ML:1.5 | 0.000244 | 1.38 | AML | other | m | 2021-08-31T19:55:22.86 |
IV.CRE.HHN. | ML:2.0 | 0.0002875 | 1.64 | AML | other | m | 2021-08-31T19:55:26.90 |
IV.CRE.HHE. | ML:1.4 | 0.000081 | 0.26 | AML | other | m | 2021-08-31T19:55:26.66 |
IV.MOCL.EHE. | ML:1.4 | 0.00007680000000000001 | 0.58 | AML | other | m | 2021-08-31T19:55:27.56 |
IV.MOCL.EHN. | ML:1.5 | 0.00009515 | 0.78 | AML | other | m | 2021-08-31T19:55:28.41 |
IV.MPPT.EHN. | ML:1.6 | 0.00010355000000000001 | 1.18 | AML | other | m | 2021-08-31T19:55:30.10 |
IV.MPPT.EHE. | ML:1.3 | 0.00004965 | 0.24 | AML | other | m | 2021-08-31T19:55:30.44 |
IV.CRMI.HHE. | ML:1.2 | 0.0000302 | 0.4 | AML | other | m | 2021-08-31T19:55:33.50 |
IV.CRMI.HHN. | ML:1.6 | 0.00006769999999999999 | 0.72 | AML | other | m | 2021-08-31T19:55:33.27 |
IV.CAFI.HHE. | ML:1.3 | 0.00003205 | 0.62 | AML | other | m | 2021-08-31T19:55:39.53 |
IV.CAFI.HHN. | ML:1.2 | 0.0000236 | 0.92 | AML | other | m | 2021-08-31T19:55:41.71 |