Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 27-01-2023 and time 02:18:37 (UTC) in region 4 km N Gambettola (FC)

A magnitude ML 1.4 earthquake occured in region: 4 km N Gambettola (FC), on

  • 27-01-2023 02:18:37 (UTC)
  • 27-01-2023 03:18:37 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1560, 12.3500 at 10 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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Gambettola FC 4 10660 10660
Gatteo FC 6 9068 19728
Cesenatico FC 6 25796 45524
San Mauro Pascoli FC 8 11690 57214
Savignano sul Rubicone FC 8 17766 74980
Montiano FC 9 1716 76696
Bellaria-Igea Marina RN 9 19519 96215
Cesena FC 9 96758 192973
Longiano FC 9 7126 200099
Cervia RA 12 28940 229039
Santarcangelo di Romagna RN 13 22089 251128
Roncofreddo FC 13 3386 254514
Borghi FC 14 2843 257357
Bertinoro FC 17 11059 268416
Sogliano al Rubicone FC 17 3195 271611
Forlimpopoli FC 18 13290 284901
Poggio Torriana RN 19 5135 290036
Verucchio RN 20 10078 300114

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km E of Cesena (96758 inhabitants)
20 Km NW of Rimini (147750 inhabitants)
26 Km E of Forlì (117913 inhabitants)
32 Km SE of Ravenna (159116 inhabitants)
40 Km E of Faenza (58541 inhabitants)
53 Km NW of Pesaro (94582 inhabitants)
55 Km E of Imola (69797 inhabitants)
64 Km NW of Fano (60888 inhabitants)
85 Km NE of Arezzo (99543 inhabitants)
89 Km E of Bologna (386663 inhabitants)
95 Km SE of Ferrara (133155 inhabitants)
97 Km E of Firenze (382808 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.4 2023-01-27
02:18:37		 44.1563 12.3497 10 2023-01-27
03:05:38		 Sala Sismica INGV-Roma 113824561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-27 02:18:37 ± 0.16
Latitude 44.1563 ± 0.0099
Longitude 12.3497 ± 0.0100
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113824561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1022
Semi-minor axis of confidence ellipse (meter) 745
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 7
Circular confidence region, given by single value of horizontal uncertainty (meter) 1020.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 140
Number of associated phases, regardless of their use for origin computation 29
Number of defining phases 22
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) 0.78421
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 13
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 113824561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-27 03:05:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2023-01-27T02:20:29.28 3.0 undecidable manual Sg 16.77 0
IV.MCRV.HHZ. 2023-01-27T02:20:17.80 3.0 undecidable manual Sn -6.01 0
IV.INTR.HNZ. 2023-01-27T02:19:45.37 3.0 undecidable manual Sn -0.78 0
IV.CSP1.EHZ. 2023-01-27T02:19:01.25 3.0 negative manual Pg 1.36 0
IV.PIEI.HHZ. 2023-01-27T02:18:59.32 0.3 undecidable manual S 168 0.6340 50 0.58 63
IV.OSSC.HHZ. 2023-01-27T02:18:56.90 3.0 undecidable manual Pg 0.95 0
IV.PARC.HHZ. 2023-01-27T02:18:55.69 0.3 undecidable manual S 189 0.5135 50 0.53 66
Y1.T1743.HNZ. 2023-01-27T02:18:55.42 0.6 undecidable manual S 129 0.4973 50 0.75 40
IV.BRIS.HHZ. 2023-01-27T02:18:53.37 0.3 undecidable manual S 279 0.4236 50 0.88 58
IV.LMD.HHZ. 2023-01-27T02:18:53.59 0.3 undecidable manual S 261 0.4676 50 -0.21 71
IV.SFI.EHZ. 2023-01-27T02:18:52.97 0.6 undecidable manual S 235 0.4398 50 -0.01 50
IV.MPPT.EHZ. 2023-01-27T02:18:52.94 3.0 undecidable manual Pn -1.84 0
IV.PESA.HHN. 2023-01-27T02:18:52.82 0.6 undecidable manual S 121 0.4128 50 0.65 43
IV.ARVD.HHZ. 2023-01-27T02:18:51.99 0.3 undecidable manual P 147 0.7842 50 -0.2 67
IV.PIEI.HHZ. 2023-01-27T02:18:49.37 0.3 undecidable manual P 168 0.6340 50 -0.26 68
Y1.T1743.HNZ. 2023-01-27T02:18:47.00 0.3 undecidable manual P 129 0.4973 50 -0.28 70
IV.CRTC.HHE. 2023-01-27T02:18:47.78 0.6 undecidable manual P 135 0.5450 50 -0.32 46
IV.PARC.HHZ. 2023-01-27T02:18:47.11 0.3 undecidable manual P 189 0.5135 50 -0.45 67
IV.LMD.HHZ. 2023-01-27T02:18:46.33 0.3 undecidable manual P 261 0.4676 50 -0.44 68
Y1.T1756.EHZ. 2023-01-27T02:18:46.05 0.3 undecidable manual S 242 0.2023 113 0.4 72
IV.BRSN.EHZ. 2023-01-27T02:18:46.80 0.6 undecidable manual S 304 0.2311 111 0.1 51
IV.CPGN.EHE. 2023-01-27T02:18:45.00 1.0 undecidable manual P 183 0.3552 50 0.14 25
IV.SFI.EHZ. 2023-01-27T02:18:45.53 0.1 undecidable manual P 235 0.4398 50 -0.77 80
IV.BRIS.HHZ. 2023-01-27T02:18:45.83 0.3 undecidable manual P 279 0.4236 50 -0.19 72
IV.PESA.HHN. 2023-01-27T02:18:45.22 0.6 undecidable manual P 121 0.4128 50 -0.61 43
Y1.T1718.HNZ. 2023-01-27T02:18:44.28 3.0 undecidable manual S 341 0.1097 128 1.71 0
IV.BRSN.EHZ. 2023-01-27T02:18:42.87 0.3 undecidable manual P 304 0.2311 111 0.2 75
Y1.T1756.EHZ. 2023-01-27T02:18:41.86 0.1 undecidable manual P 242 0.2023 113 -0.21 100
Y1.T1718.HNZ. 2023-01-27T02:18:40.61 0.1 undecidable manual P 341 0.1097 128 0.32 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LMD.HHN. ML:1.5 0.00008045578 0.2208 AML other m 2023-01-27T02:18:55.66
IV.PARC.HHE. ML:1.5 0.00007115 0.16 AML other m 2023-01-27T02:18:56.29
IV.LMD.HHE. ML:1.6 0.000088847895 0.1792 AML other m 2023-01-27T02:18:57.03
IV.PARC.HHN. ML:1.4 0.00005672324 0.2016 AML other m 2023-01-27T02:18:56.68
IV.PIEI.HHE. ML:0.0 0.000084615805 0.2 AML other m 2023-01-27T02:19:00.65
IV.PIEI.HHN. ML:0.0 0.000044470925 0.1984 AML other m 2023-01-27T02:19:00.39
IV.SFI.EHE. ML:1.2 0.000039252405000000004 0.1408 AML other m 2023-01-27T02:18:54.19
IV.SFI.EHN. ML:1.2 0.000041469295000000006 0.3808 AML other m 2023-01-27T02:18:54.06
IV.SFI.HNN. ML:1.3 0.00005313432 0.16 AML other m 2023-01-27T02:18:54.56
IV.BRIS.HHE. ML:0.7 0.000013816103999999999 0.1792 AML other m 2023-01-27T02:18:55.20
IV.BRIS.HHN. ML:0.6 0.000010331001499999999 0.1216 AML other m 2023-01-27T02:18:53.74
IV.PIEI.HNE. ML:1.8 0.000095106085 0.1904 AML other m 2023-01-27T02:19:00.66
IV.PIEI.HNN. ML:1.4 0.00004267532 0.1504 AML other m 2023-01-27T02:19:00.69
IV.ARVD.HHE. ML:1.3 0.000023978724999999996 0.2192 AML other m 2023-01-27T02:19:06.60
IV.ARVD.HHN. ML:1.3 0.000026984500000000002 0.2192 AML other m 2023-01-27T02:19:08.44
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download