A magnitude ML 1.7 earthquake occured in region: 5 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0530, 11.6690 at 8 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 |
---|---|---|---|---|
Marradi | FI | 5 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Portico e San Benedetto | FC | 10 | 756 | 5107 |
Palazzuolo sul Senio | FI | 12 | 1154 | 6261 |
Premilcuore | FC | 12 | 799 | 7060 |
Rocca San Casciano | FC | 14 | 1910 | 8970 |
San Godenzo | FI | 15 | 1167 | 10137 |
Modigliana | FC | 15 | 4560 | 14697 |
Dovadola | FC | 19 | 1653 | 16350 |
Casola Valsenio | RA | 19 | 2617 | 18967 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 1.7 | 2023-09-18 03:30:36 |
44.0533 | 11.669 | 8 | 2023-09-18 03:46:56 |
Sala Sismica INGV-Roma | 121152451 |
Field | Value |
---|---|
Time (UTC) | 2023-09-18 03:30:36 ± 0.09 |
Latitude | 44.0533 ± 0.0045 |
Longitude | 11.6690 ± 0.0063 |
Depth (km) | 8 ± 1 (from location) |
Evaluation mode of Origin | manual |
Evaluation status of Origin | reviewed |
Version | 100 -> SURVEY-INGV |
Event type | earthquake |
Origin ID | 121152451 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 454 |
Semi-minor axis of confidence ellipse (meter) | 295 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 57 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 450.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 124 |
Number of associated phases, regardless of their use for origin computation | 27 |
Number of defining phases | 24 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.28 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.75543 |
Number of stations at which the event was observed | 19 |
Number of stations from which data was used for origin computation | 16 |
Field | Value |
---|---|
Value | 1.7 |
Uncertainty | 0.3 |
Num. used stations | 33 |
Type of magnitude | ML |
Reference to an origin | 121152451 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-18 03:46:56 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.PZUN.HHZ. | 2023-09-18T03:31:45.37 | 3.0 | undecidable | manual | Pg | 22.549999 | 0 | |||
IV.FIAM.HHZ. | 2023-09-18T03:31:33.27 | 3.0 | undecidable | manual | Sg | 0.86 | 0 | |||
IV.CAFI.HHZ. | 2023-09-18T03:30:51.29 | 0.1 | undecidable | manual | P | 163 | 83.8494 | 50 | 0.41 | 82 |
GU.POPM.HHZ. | 2023-09-18T03:30:49.71 | 0.1 | undecidable | manual | P | 270 | 72.7716 | 50 | 0.53 | 81 |
IV.MOCL.EHZ. | 2023-09-18T03:30:49.63 | 0.3 | undecidable | manual | S | 262 | 39.3273 | 50 | -0.15 | 71 |
IV.PARC.HHZ. | 2023-09-18T03:30:47.84 | 0.3 | undecidable | manual | P | 134 | 63.9915 | 50 | 0.01 | 69 |
IV.CRMI.HHZ. | 2023-09-18T03:30:47.83 | 0.3 | undecidable | manual | P | 243 | 62.0934 | 50 | 0.3 | 66 |
IV.BOSL.HHZ. | 2023-09-18T03:30:46.00 | 0.1 | undecidable | manual | S | 240 | 27.1506 | 107 | 0 | 99 |
IV.SEI.HHZ. | 2023-09-18T03:30:45.24 | 0.1 | undecidable | manual | S | 270 | 24.753 | 108 | 0.04 | 99 |
IV.RUFI.EHZ. | 2023-09-18T03:30:45.90 | 0.1 | undecidable | manual | S | 208 | 27.0507 | 107 | -0.07 | 98 |
IV.CRE.HHZ. | 2023-09-18T03:30:45.62 | 1.0 | positive | manual | P | 155 | 53.2023 | 50 | -0.55 | 21 |
IV.SFI.EHZ. | 2023-09-18T03:30:44.03 | 0.3 | undecidable | manual | S | 139 | 21.7671 | 110 | -0.19 | 72 |
IV.MPPT.EHZ. | 2023-09-18T03:30:44.83 | 0.3 | undecidable | manual | P | 257 | 47.4192 | 50 | -0.44 | 65 |
IV.VISG.HHZ. | 2023-09-18T03:30:44.80 | 0.1 | undecidable | manual | S | 309 | 23.9538 | 109 | -0.15 | 97 |
IV.IMOL.EHZ. | 2023-09-18T03:30:43.62 | 0.1 | undecidable | manual | P | 10 | 34.4433 | 103 | 0.37 | 91 |
IV.RINC.EHZ. | 2023-09-18T03:30:43.69 | 0.3 | undecidable | manual | S | 195 | 19.1697 | 113 | 0.31 | 71 |
IV.MTRZ.HHZ. | 2023-09-18T03:30:43.57 | 0.1 | undecidable | manual | P | 326 | 34.743 | 103 | 0.26 | 93 |
IV.MOCL.EHZ. | 2023-09-18T03:30:43.61 | 0.3 | undecidable | manual | P | 262 | 39.3273 | 50 | -0.41 | 67 |
IV.ARVD.HHZ. | 2023-09-18T03:30:42.92 | 3.0 | undecidable | manual | P | 0.15 | 0 | |||
IV.VMGN.HHZ. | 2023-09-18T03:30:42.68 | 0.3 | undecidable | manual | S | 225 | 15.4734 | 118 | 0.46 | 69 |
IV.BOSL.HHZ. | 2023-09-18T03:30:41.76 | 0.1 | undecidable | manual | P | 240 | 27.1506 | 107 | -0.08 | 98 |
IV.SEI.HHZ. | 2023-09-18T03:30:41.05 | 0.1 | undecidable | manual | P | 270 | 24.753 | 108 | -0.33 | 93 |
IV.RUFI.EHZ. | 2023-09-18T03:30:41.57 | 0.1 | undecidable | manual | P | 208 | 27.0507 | 107 | -0.26 | 94 |
IV.RINC.EHZ. | 2023-09-18T03:30:40.36 | 0.1 | undecidable | manual | P | 195 | 19.1697 | 113 | 0.03 | 100 |
IV.VISG.HHZ. | 2023-09-18T03:30:40.89 | 0.3 | undecidable | manual | P | 309 | 23.9538 | 109 | -0.35 | 70 |
IV.SFI.EHZ. | 2023-09-18T03:30:40.49 | 0.1 | undecidable | manual | P | 139 | 21.7671 | 110 | -0.33 | 94 |
IV.VMGN.HHZ. | 2023-09-18T03:30:39.82 | 0.1 | undecidable | manual | P | 225 | 15.4734 | 118 | 0.16 | 98 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.VMGN.HHN. | ML:1.9 | 0.0008819999999999999 | 0.16 | AML | other | m | 2023-09-18T03:30:43.08 |
IV.VMGN.HHE. | ML:1.8 | 0.0007111971 | 0.2 | AML | other | m | 2023-09-18T03:30:43.14 |
IV.SFI.EHE. | ML:2.0 | 0.000751 | 0.2 | AML | other | m | 2023-09-18T03:30:44.12 |
IV.RINC.EHN. | ML:2.0 | 0.0008460000000000001 | 1.72 | AML | other | m | 2023-09-18T03:30:44.12 |
IV.SFI.HNE. | ML:2.0 | 0.0007535 | 0.2 | AML | other | m | 2023-09-18T03:30:44.12 |
IV.SFI.EHN. | ML:1.8 | 0.00044114280000000005 | 0.1792 | AML | other | m | 2023-09-18T03:30:44.30 |
IV.SFI.HNN. | ML:1.8 | 0.00041854115000000003 | 0.1792 | AML | other | m | 2023-09-18T03:30:44.30 |
IV.VISG.HHN. | ML:1.8 | 0.00036852945 | 0.1792 | AML | other | m | 2023-09-18T03:30:45.00 |
IV.RINC.EHE. | ML:2.1 | 0.0010435 | 0.28 | AML | other | m | 2023-09-18T03:30:45.21 |
IV.VISG.HHE. | ML:1.6 | 0.0002336093 | 0.1392 | AML | other | m | 2023-09-18T03:30:45.50 |
IV.RUFI.EHN. | ML:2.2 | 0.0008440000000000001 | 0.28 | AML | other | m | 2023-09-18T03:30:46.20 |
IV.RUFI.EHE. | ML:1.5 | 0.000189 | 0.46 | AML | other | m | 2023-09-18T03:30:46.35 |
IV.BOSL.HHN. | ML:1.4 | 0.0001385376 | 0.24 | AML | other | m | 2023-09-18T03:30:46.55 |
IV.SEI.HHN. | ML:2.4 | 0.0014555015 | 0.2992 | AML | other | m | 2023-09-18T03:30:45.65 |
IV.SEI.HHE. | ML:2.0 | 0.000635 | 1.7 | AML | other | m | 2023-09-18T03:30:48.11 |
IV.BOSL.HHE. | ML:1.1 | 0.000072755345 | 0.1408 | AML | other | m | 2023-09-18T03:30:46.97 |
IV.MOCL.EHN. | ML:1.8 | 0.0002575 | 1.82 | AML | other | m | 2023-09-18T03:30:50.98 |
IV.MOCL.EHE. | ML:1.7 | 0.00019250000000000002 | 1.58 | AML | other | m | 2023-09-18T03:30:50.17 |
IV.CRE.HHN. | ML:2.2 | 0.000358 | 0.22 | AML | other | m | 2023-09-18T03:30:53.91 |
IV.CRE.HHE. | ML:2.0 | 0.000219 | 0.2 | AML | other | m | 2023-09-18T03:30:53.99 |
IV.MPPT.EHE. | ML:1.4 | 0.0000692 | 1.52 | AML | other | m | 2023-09-18T03:30:54.83 |
IV.MPPT.EHN. | ML:1.6 | 0.0001059047 | 0.4208 | AML | other | m | 2023-09-18T03:30:56.71 |
IV.CRMI.HHN. | ML:1.4 | 0.00005265657 | 0.3408 | AML | other | m | 2023-09-18T03:30:58.59 |
IV.PARC.HHN. | ML:1.4 | 0.000044955655 | 0.44 | AML | other | m | 2023-09-18T03:31:01.48 |
IV.PARC.HHE. | ML:1.4 | 0.000044280635 | 0.5008 | AML | other | m | 2023-09-18T03:31:01.23 |
IV.CRMI.HHE. | ML:1.2 | 0.00002952464 | 0.2992 | AML | other | m | 2023-09-18T03:30:58.60 |
GU.POPM.HHN. | ML:1.6 | 0.0000588 | 0.18 | AML | other | m | 2023-09-18T03:31:02.42 |
GU.POPM.HHE. | ML:1.4 | 0.0000472 | 0.2 | AML | other | m | 2023-09-18T03:31:02.55 |
IV.CAFI.HHE. | ML:1.6 | 0.00005235 | 0.48 | AML | other | m | 2023-09-18T03:31:06.32 |
IV.CAFI.HHN. | ML:1.5 | 0.000044851589999999995 | 0.4992 | AML | other | m | 2023-09-18T03:31:07.37 |
IV.IMOL.HNE. | ML:2.0 | 0.0004432967 | 0.2512 | AML | other | m | 2023-09-18T03:30:52.56 |
IV.IMOL.HNN. | ML:2.0 | 0.0003716698 | 0.2592 | AML | other | m | 2023-09-18T03:30:55.03 |
IV.CAFI.HNE. | ML:1.7 | 0.000059807025 | 0.5504 | AML | other | m | 2023-09-18T03:31:09.36 |