Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 27-01-2023 and time 05:23:44 (UTC) in region 2 km W Cesenatico (FC)

A magnitude ML 1.6 earthquake occured in region: 2 km W Cesenatico (FC), on

  • 27-01-2023 05:23:44 (UTC)
  • 27-01-2023 06:23:44 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.2020, 12.3650 at 23 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.

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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
Cesenatico FC 3 25796 25796
Cervia RA 7 28940 54736
Gambettola FC 9 10660 65396
Bellaria-Igea Marina RN 10 19519 84915
Gatteo FC 10 9068 93983
San Mauro Pascoli FC 11 11690 105673
Cesena FC 12 96758 202431
Savignano sul Rubicone FC 12 17766 220197
Montiano FC 14 1716 221913
Longiano FC 14 7126 229039
Santarcangelo di Romagna RN 17 22089 251128
Roncofreddo FC 18 3386 254514
Borghi FC 19 2843 257357
Forlimpopoli FC 19 13290 270647
Bertinoro FC 19 11059 281706

Municipalities with at least 50000 inhabitants

An earthquake occurred to
12 Km NE of Cesena (96758 inhabitants)
22 Km NW of Rimini (147750 inhabitants)
26 Km E of Forlì (117913 inhabitants)
27 Km SE of Ravenna (159116 inhabitants)
40 Km E of Faenza (58541 inhabitants)
55 Km E of Imola (69797 inhabitants)
55 Km NW of Pesaro (94582 inhabitants)
66 Km NW of Fano (60888 inhabitants)
88 Km E of Bologna (386663 inhabitants)
90 Km NE of Arezzo (99543 inhabitants)
92 Km SE of Ferrara (133155 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
Bulletin
Rev1000 		ML 1.6 2023-01-27
05:23:44		 44.2017 12.3653 23 2024-03-01
17:18:04		 Bollettino Sismico Italiano INGV 116496151
Reviewed
Rev100 		ML 1.4 2023-01-27
05:23:44		 44.2202 12.3488 26 2023-01-27
07:24:53		 Sala Sismica INGV-Roma 113825641
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-27 05:23:44 ± 0.22
Latitude 44.2017 ± 0.0117
Longitude 12.3653 ± 0.0138
Depth (km) 23 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 116496151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1095
Semi-minor axis of confidence ellipse (meter) 1027
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 1100.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 163
Number of associated phases, regardless of their use for origin computation 28
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.91821
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 19
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 12
Type of magnitude ML
Reference to an origin 116496151
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-11 13:26:49

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 113825641
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-27 07:24:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2023-01-27T05:25:13.59 3.0 undecidable manual Sg 4.12 0
IV.GIUL.HHZ. 2023-01-27T05:24:57.77 3.0 undecidable manual Sn -9.99 0
IV.MC2.EHZ. 2023-01-27T05:24:36.71 3.0 undecidable manual Sn -8.03 0
IV.PARC.HHZ. 2023-01-27T05:24:04.75 0.6 undecidable manual S 189 62.1933 103 0.57 40
IV.LMD.HHZ. 2023-01-27T05:24:02.31 0.6 undecidable manual S 256 54.2013 106 0.19 45
IV.CAFI.HNN. 2023-01-27T05:24:02.06 0.6 undecidable manual P 198 101.9202 98 0.06 42
IV.SFI.EHZ. 2023-01-27T05:24:01.54 0.6 undecidable manual S 232 52.8027 106 -0.24 45
IV.BADI.EHE. 2023-01-27T05:23:58.22 0.3 undecidable manual P 187 77.367 100 -0.05 66
IV.ATPC.HHE. 2023-01-27T05:23:58.89 0.6 undecidable manual P 175 80.2641 100 0.18 43
IV.FRON.EHZ. 2023-01-27T05:23:58.94 0.6 undecidable manual P 159 81.1521 100 0.1 43
IV.VMGN.HHN. 2023-01-27T05:23:57.29 0.3 undecidable manual P 248 71.7726 101 -0.14 66
IV.PIEI.HHZ. 2023-01-27T05:23:57.76 0.3 undecidable manual P 170 75.0693 101 -0.16 65
IV.MPAG.HNZ. 2023-01-27T05:23:57.19 0.6 undecidable manual P 153 70.8735 102 -0.09 44
Y1.T1757.HNN. 2023-01-27T05:23:56.48 0.6 undecidable manual P 325 69.9744 102 -0.66 38
IV.CRTC.HNE. 2023-01-27T05:23:56.90 0.6 undecidable manual P 139 63.3921 103 0.75 38
IV.PE3.EHE. 2023-01-27T05:23:55.60 0.3 undecidable manual P 169 56.9985 105 0.39 64
IV.PARC.HHZ. 2023-01-27T05:23:55.64 0.3 undecidable manual P 189 62.1933 103 -0.33 64
IV.CPGN.EHZ. 2023-01-27T05:23:54.11 0.6 undecidable manual P 185 44.5221 110 0.74 39
IV.LMD.HHZ. 2023-01-27T05:23:54.47 0.3 undecidable manual P 256 54.2013 106 -0.31 65
Y1.T1756.HNZ. 2023-01-27T05:23:54.50 0.6 undecidable manual S 233 26.2515 125 -0.79 40
IV.SFI.EHZ. 2023-01-27T05:23:54.28 0.3 undecidable manual P 232 52.8027 106 -0.31 66
IV.BRIS.HHZ. 2023-01-27T05:23:54.27 0.3 undecidable manual P 273 47.7189 108 0.44 64
Y1.T1718.HNE. 2023-01-27T05:23:52.96 0.3 undecidable manual S 321 8.3805 157 0.75 61
IV.BLLA.EHE. 2023-01-27T05:23:52.18 0.3 undecidable manual S 128 10.5783 152 -0.28 71
IV.BRSN.HNE. 2023-01-27T05:23:51.34 0.6 undecidable manual P 292 24.4533 127 0.72 41
Y1.T1756.HNZ. 2023-01-27T05:23:50.50 0.3 undecidable manual P 233 26.2515 125 -0.34 68
Y1.T1718.HNE. 2023-01-27T05:23:49.11 0.1 undecidable manual P 321 8.3805 157 0.05 100
IV.BLLA.EHE. 2023-01-27T05:23:48.77 0.1 undecidable manual P 128 10.5783 152 -0.43 92
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.EHE. ML:1.5 0.00007555000000000001 0.56 AML other m 2023-01-27T05:24:03.32
IV.LMD.HHE. ML:1.8 0.00013855 0.18 AML other m 2023-01-27T05:24:03.58
IV.LMD.HHN. ML:1.5 0.00007238766500000001 1.3408 AML other m 2023-01-27T05:24:03.95
IV.SFI.EHN. ML:1.6 0.000092 1.16 AML other m 2023-01-27T05:24:04.35
IV.PIEI.HHN. ML:1.4 0.00003284021 9.0208 AML other m 2023-01-27T05:24:06.33
IV.PARC.HHN. ML:1.4 0.000043684539999999994 3.2416 AML other m 2023-01-27T05:24:06.56
IV.BRIS.HHN. ML:1.3 0.00005017156 2.24 AML other m 2023-01-27T05:24:06.04
IV.PARC.HHE. ML:1.5 0.000053967815 2.2208 AML other m 2023-01-27T05:24:07.10
IV.PIEI.HHE. ML:1.8 0.000085928255 3.28 AML other m 2023-01-27T05:24:08.85
IV.MPAG.EHE. ML:1.7 0.00008050488 3.9008 AML other m 2023-01-27T05:24:10.91
IV.MPAG.EHN. ML:1.6 0.000065181665 1.9008 AML other m 2023-01-27T05:24:10.07
IV.BRIS.HHE. ML:1.6 0.000090248225 3.2608 AML other m 2023-01-27T05:24:12.18
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