A magnitude ML 0.5 earthquake occured in region: 4 km SE Marradi (FI), on
and geographic coordinates (lat, lon) 44.0560, 11.6580 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 | 4 | 3139 | 3139 |
Tredozio | FC | 7 | 1212 | 4351 |
Portico e San Benedetto | FC | 11 | 756 | 5107 |
Palazzuolo sul Senio | FI | 11 | 1154 | 6261 |
Premilcuore | FC | 13 | 799 | 7060 |
San Godenzo | FI | 15 | 1167 | 8227 |
Rocca San Casciano | FC | 15 | 1910 | 10137 |
Modigliana | FC | 16 | 4560 | 14697 |
Casola Valsenio | RA | 19 | 2617 | 17314 |
Dovadola | FC | 20 | 1653 | 18967 |
Type | Magnitude | Date and Time (UTC) | Latitude | Longitude | Depth (km) | Published time (UTC) | Author | Location ID |
---|---|---|---|---|---|---|---|---|
Reviewed Rev100 |
ML 0.5 | 2023-09-29 16:34:14 |
44.0562 | 11.6577 | 8 | 2023-09-29 17:01:00 |
Sala Sismica INGV-Roma | 121589531 |
Field | Value |
---|---|
Time (UTC) | 2023-09-29 16:34:14 ± 0.15 |
Latitude | 44.0562 ± 0.0036 |
Longitude | 11.6577 ± 0.0050 |
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 | 121589531 |
Field | Value |
---|---|
Preferred uncertainty description | uncertainty ellipse |
Semi-major axis of confidence ellipse (meter) | 409 |
Semi-minor axis of confidence ellipse (meter) | 131 |
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) | 138 |
Circular confidence region, given by single value of horizontal uncertainty (meter) | 410.0 |
Confidence level of the uncertainty (%) | 68 |
Field | Value |
---|---|
Largest azimuthal gap in station distribution as seen from epicenter (degree) | 84 |
Number of associated phases, regardless of their use for origin computation | 25 |
Number of defining phases | 18 |
RMS of the travel time residuals of the arrivals used for the origin computation (sec) | 0.23 |
Epicentral distance of station closest to the epicenter (degree) | 0.00000 |
Epicentral distance of station farthest from the epicenter (degree) | 0.23922 |
Number of stations at which the event was observed | 16 |
Number of stations from which data was used for origin computation | 9 |
Field | Value |
---|---|
Value | 0.5 |
Uncertainty | 0.7 |
Num. used stations | 8 |
Type of magnitude | ML |
Reference to an origin | 121589531 |
Agency | INGV |
Autore | Sala Sismica INGV-Roma |
Time of creation (UTC) | 2023-09-29 17:01:00 |
SCNL | Time | Uncertainty | Polarity | Evaluation_mode | Phase | Azimuth | Distance(km) | Takeoff_angle | Residual | Weight |
---|---|---|---|---|---|---|---|---|---|---|
IV.SPS2.HHZ. | 2023-09-29T16:35:54.22 | 3.0 | negative | manual | Pg | 13.2 | 0 | |||
GE.MATE.HHZ. | 2023-09-29T16:35:46.55 | 3.0 | undecidable | manual | Pg | 17.530001 | 0 | |||
GU.MGRO.HHZ. | 2023-09-29T16:35:41.76 | 3.0 | undecidable | manual | Sg | 10.44 | 0 | |||
IV.CERT.HHZ. | 2023-09-29T16:35:23.01 | 3.0 | undecidable | manual | Sn | 0.36 | 0 | |||
IV.CIGN.HHZ. | 2023-09-29T16:35:13.33 | 3.0 | undecidable | manual | Pg | 7.19 | 0 | |||
IV.GIUL.HHZ. | 2023-09-29T16:34:55.21 | 3.0 | positive | manual | Pn | -2.72 | 0 | |||
IV.CADC.HNZ. | 2023-09-29T16:34:41.81 | 3.0 | undecidable | manual | Pn | 0.26 | 0 | |||
IV.BOSL.HHE. | 2023-09-29T16:34:23.94 | 0.3 | undecidable | manual | S | 239 | 26.5512 | 106 | 0.16 | 71 |
IV.VISG.HHZ. | 2023-09-29T16:34:22.67 | 0.3 | undecidable | manual | S | 310 | 23.0547 | 109 | 0.03 | 73 |
IV.SEI.HHZ. | 2023-09-29T16:34:22.91 | 0.6 | undecidable | manual | S | 270 | 23.8539 | 108 | 0.02 | 49 |
IV.SFI.EHZ. | 2023-09-29T16:34:22.32 | 0.3 | undecidable | manual | S | 138 | 22.5552 | 109 | -0.15 | 71 |
IV.RINC.EHZ. | 2023-09-29T16:34:21.48 | 0.3 | undecidable | manual | S | 192 | 19.2696 | 112 | 0.09 | 73 |
IT.MOG.HNE. | 2023-09-29T16:34:20.46 | 0.3 | undecidable | manual | S | 34 | 15.3735 | 117 | 0.3 | 70 |
IV.VMGN.HHZ. | 2023-09-29T16:34:20.32 | 0.3 | undecidable | manual | S | 222 | 15.0738 | 117 | 0.25 | 71 |
IV.BOSL.HHE. | 2023-09-29T16:34:19.68 | 0.6 | undecidable | manual | P | 239 | 26.5512 | 106 | -0.05 | 48 |
IV.SFI.EHZ. | 2023-09-29T16:34:18.80 | 0.1 | undecidable | manual | P | 138 | 22.5552 | 109 | -0.17 | 95 |
IV.RINC.EHZ. | 2023-09-29T16:34:18.41 | 0.3 | undecidable | manual | P | 192 | 19.2696 | 112 | 0.07 | 73 |
IT.MOG.HNE. | 2023-09-29T16:34:18.03 | 0.3 | undecidable | manual | P | 34 | 15.3735 | 117 | 0.4 | 69 |
IV.VISG.HHZ. | 2023-09-29T16:34:18.88 | 0.3 | undecidable | manual | P | 310 | 23.0547 | 109 | -0.19 | 71 |
IV.SEI.HHZ. | 2023-09-29T16:34:18.47 | 0.3 | undecidable | manual | P | 270 | 23.8539 | 108 | -0.74 | 60 |
IV.LMD.HHZ. | 2023-09-29T16:34:17.10 | 0.3 | undecidable | manual | S | 59 | 4.5954 | 149 | -0.23 | 72 |
IT.MRR.HGZ. | 2023-09-29T16:34:17.20 | 0.3 | undecidable | manual | S | 282 | 4.3956 | 150 | -0.1 | 74 |
IV.VMGN.HHZ. | 2023-09-29T16:34:17.76 | 0.1 | undecidable | manual | P | 222 | 15.0738 | 117 | 0.18 | 96 |
IT.MRR.HGZ. | 2023-09-29T16:34:16.06 | 0.3 | undecidable | manual | P | 282 | 4.3956 | 150 | 0.08 | 75 |
IV.LMD.HHZ. | 2023-09-29T16:34:15.95 | 0.1 | undecidable | manual | P | 59 | 4.5954 | 149 | -0.05 | 100 |
SCNL | mag | Generic_amplitude | Period | Type | Category | Unit | Time_window_reference |
---|---|---|---|---|---|---|---|
IV.BRSN.EHE. | ML:2.3 | 0.0006755 | 0.24 | AML | other | m | 2023-09-29T16:34:23.73 |
IV.BRSN.EHN. | ML:2.2 | 0.0005805000000000001 | 0.24 | AML | other | m | 2023-09-29T16:34:30.38 |
IV.SFI.EHE. | ML:-0.1 | 0.0000061199815 | 0.0512 | AML | other | m | 2023-09-29T16:34:23.11 |
IV.SFI.EHN. | ML:0.2 | 0.0000089942175 | 0.1664 | AML | other | m | 2023-09-29T16:34:22.44 |
IV.CRE.HHE. | ML:0.8 | 0.00001595187 | 0.1024 | AML | other | m | 2023-09-29T16:34:35.37 |
IV.CRE.HHN. | ML:1.0 | 0.000024931704999999997 | 0.1152 | AML | other | m | 2023-09-29T16:34:34.07 |
IV.VISG.HHE. | ML:-0.1 | 0.0000030824199999999996 | 0.064 | AML | other | m | 2023-09-29T16:34:23.90 |
IV.VISG.HHN. | ML:-0.1 | 0.0000047955885 | 0.1024 | AML | other | m | 2023-09-29T16:34:24.31 |