Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-01-2023 and time 07:13:35 (UTC) in region 4 km W Cesenatico (FC)

A magnitude ML 1.6 earthquake occured in region: 4 km W Cesenatico (FC), on

  • 28-01-2023 07:13:35 (UTC)
  • 28-01-2023 08:13:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1860, 12.3550 at 20 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 4 25796 25796
Gambettola FC 7 10660 36456
Cervia RA 9 28940 65396
Gatteo FC 9 9068 74464
Bellaria-Igea Marina RN 9 19519 93983
San Mauro Pascoli FC 10 11690 105673
Cesena FC 10 96758 202431
Savignano sul Rubicone FC 11 17766 220197
Montiano FC 12 1716 221913
Longiano FC 13 7126 229039
Santarcangelo di Romagna RN 15 22089 251128
Roncofreddo FC 16 3386 254514
Borghi FC 17 2843 257357
Bertinoro FC 18 11059 268416
Forlimpopoli FC 18 13290 281706

Municipalities with at least 50000 inhabitants

An earthquake occurred to
10 Km NE of Cesena (96758 inhabitants)
22 Km NW of Rimini (147750 inhabitants)
25 Km E of Forlì (117913 inhabitants)
29 Km SE of Ravenna (159116 inhabitants)
39 Km E of Faenza (58541 inhabitants)
54 Km NW of Pesaro (94582 inhabitants)
54 Km E of Imola (69797 inhabitants)
65 Km NW of Fano (60888 inhabitants)
88 Km E of Bologna (386663 inhabitants)
88 Km NE of Arezzo (99543 inhabitants)
93 Km SE of Ferrara (133155 inhabitants)
99 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
Bulletin
Rev1000 		ML 1.6 2023-01-28
07:13:35		 44.1857 12.3552 20 2024-03-01
17:17:58		 Bollettino Sismico Italiano INGV 115392091
Reviewed
Rev100 		ML 1.5 2023-01-28
07:13:35		 44.1493 12.36 10 2023-01-28
07:19:00		 Sala Sismica INGV-Roma 113848171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 07:13:35 ± 0.33
Latitude 44.1857 ± 0.0117
Longitude 12.3552 ± 0.0150
Depth (km) 20 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115392091

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1141
Semi-minor axis of confidence ellipse (meter) 887
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 225
Circular confidence region, given by single value of horizontal uncertainty (meter) 1140.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 146
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.43
Epicentral distance of station closest to the epicenter (degree) 0.08454
Epicentral distance of station farthest from the epicenter (degree) 1.25365
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 115392091
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-11 08:33:38

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 113848171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 07:19:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CSP1.EHZ. 2023-01-28T07:13:59.29 0.3 undecidable manual P 150 139.1607 94 1.34 38
IV.PARC.HHZ. 2023-01-28T07:13:54.51 0.6 undecidable manual S 189 60.2952 101 0.71 40
IV.LMD.HHZ. 2023-01-28T07:13:51.80 0.6 undecidable manual S 257 53.0025 102 -0.08 47
IV.SFI.EHZ. 2023-01-28T07:13:51.23 0.6 undecidable manual S 233 51.1155 103 -0.17 47
IV.BRIS.HHZ. 2023-01-28T07:13:51.36 0.6 undecidable manual S 275 47.0196 104 1.02 38
IV.ATVO.HHZ. 2023-01-28T07:13:50.70 0.3 undecidable manual P 177 89.244 97 0.42 63
IV.PIEI.HHZ. 2023-01-28T07:13:47.55 0.3 undecidable manual P 169 73.5708 98 -0.33 67
IV.CRE.HHZ. 2023-01-28T07:13:47.71 0.3 undecidable manual P 207 70.6737 99 0.27 68
IV.PARC.HHZ. 2023-01-28T07:13:45.68 0.1 undecidable manual P 189 60.2952 101 -0.19 93
IV.BRIS.HHZ. 2023-01-28T07:13:44.06 0.3 undecidable manual P 275 47.0196 104 0.19 73
IV.RSM2.HHZ. 2023-01-28T07:13:44.68 0.3 undecidable manual S 165 28.4493 116 -0.99 58
IV.LMD.HHZ. 2023-01-28T07:13:44.27 0.1 undecidable manual P 257 53.0025 102 -0.49 86
Y1.T1756.HNZ. 2023-01-28T07:13:44.42 0.6 undecidable manual S 235 24.5532 121 -0.33 48
IV.SFI.EHZ. 2023-01-28T07:13:44.14 0.1 undecidable manual P 233 51.1155 103 -0.34 91
IV.CPGN.EHZ. 2023-01-28T07:13:43.87 0.3 undecidable manual P 184 42.7239 106 0.64 65
IV.BLLA.EHZ. 2023-01-28T07:13:42.15 0.6 undecidable manual S 117 10.2786 148 0.14 51
Y1.T1718.HNE. 2023-01-28T07:13:42.48 0.3 undecidable manual S 331 9.3795 151 0.6 71
IV.RSM2.HHZ. 2023-01-28T07:13:41.32 0.3 undecidable manual P 165 28.4493 116 0.15 75
Y1.T1756.HNZ. 2023-01-28T07:13:40.26 0.1 negative manual P 235 24.5532 121 -0.38 95
Y1.T1718.HNE. 2023-01-28T07:13:38.73 0.1 positive manual P 331 9.3795 151 -0.26 100
IV.BLLA.EHZ. 2023-01-28T07:13:38.76 0.3 undecidable manual P 117 10.2786 148 -0.3 75
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.BRIS.HHE. ML:0.9 0.000021272735 0.8608 AML other m 2023-01-28T07:13:51.49
IV.SFI.EHE. ML:1.6 0.00009164999999999999 1.32 AML other m 2023-01-28T07:13:52.97
IV.SFI.EHN. ML:1.6 0.00009810000000000001 1.14 AML other m 2023-01-28T07:13:53.10
IV.LMD.HHE. ML:1.8 0.000157 0.24 AML other m 2023-01-28T07:13:53.68
IV.LMD.HHN. ML:1.8 0.0001325 0.52 AML other m 2023-01-28T07:13:54.75
IV.BRIS.HHN. ML:1.0 0.000027332764999999998 0.32 AML other m 2023-01-28T07:13:58.24
IV.CRE.HHE. ML:1.4 0.00003757048 0.2016 AML other m 2023-01-28T07:13:59.44
IV.PIEI.HHN. ML:1.6 0.00005555 0.48 AML other m 2023-01-28T07:14:02.24
IV.PIEI.HHE. ML:1.7 0.0000697 0.42 AML other m 2023-01-28T07:14:05.55
IV.CRE.HHN. ML:1.6 0.000066530115 0.2592 AML other m 2023-01-28T07:14:07.39
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