Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 28-01-2023 and time 08:56:09 (UTC) in region 4 km W Cesenatico (FC)

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

  • 28-01-2023 08:56:09 (UTC)
  • 28-01-2023 09:56:09 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1950, 12.3480 at 22 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
Cervia RA 7 28940 54736
Gambettola FC 8 10660 65396
Gatteo FC 10 9068 74464
Bellaria-Igea Marina RN 10 19519 93983
Cesena FC 11 96758 190741
San Mauro Pascoli FC 11 11690 202431
Savignano sul Rubicone FC 12 17766 220197
Montiano FC 13 1716 221913
Longiano FC 14 7126 229039
Santarcangelo di Romagna RN 17 22089 251128
Roncofreddo FC 17 3386 254514
Forlimpopoli FC 18 13290 267804
Bertinoro FC 18 11059 278863
Borghi FC 18 2843 281706

Municipalities with at least 50000 inhabitants

An earthquake occurred to
11 Km NE of Cesena (96758 inhabitants)
23 Km NW of Rimini (147750 inhabitants)
25 Km E of Forlì (117913 inhabitants)
28 Km SE of Ravenna (159116 inhabitants)
38 Km E of Faenza (58541 inhabitants)
53 Km E of Imola (69797 inhabitants)
55 Km NW of Pesaro (94582 inhabitants)
66 Km NW of Fano (60888 inhabitants)
87 Km E of Bologna (386663 inhabitants)
89 Km NE of Arezzo (99543 inhabitants)
92 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 1.4 2023-01-28
08:56:09		 44.1952 12.3485 22 2024-03-01
17:17:59		 Bollettino Sismico Italiano INGV 115622941
Reviewed
Rev100 		ML 1.5 2023-01-28
08:56:09		 44.2017 12.3467 23 2023-01-28
09:06:55		 Sala Sismica INGV-Roma 113849441
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-28 08:56:09 ± 0.25
Latitude 44.1952 ± 0.0108
Longitude 12.3485 ± 0.0138
Depth (km) 22 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 115622941

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 996
Semi-minor axis of confidence ellipse (meter) 958
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 1000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 22
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.34
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.68888
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 13
Type of magnitude ML
Reference to an origin 115622941
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2023-08-11 08:47:48

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 113849441
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-28 09:06:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.CANO.HHZ. 2023-01-28T08:56:57.85 3.0 undecidable manual Pn -0.4 0
IV.ZEN8.EHZ. 2023-01-28T08:56:46.70 3.0 undecidable manual Pg 0.45 0
ST.PANI.EHZ. 2023-01-28T08:56:44.01 3.0 positive manual Pn -5.07 0
IV.PIEI.HHZ. 2023-01-28T08:56:32.62 0.3 undecidable manual S 168 74.6697 100 0.71 57
IV.PARC.HHZ. 2023-01-28T08:56:29.18 0.6 undecidable manual S 188 61.2942 102 0.78 38
IV.OSSC.HHZ. 2023-01-28T08:56:27.70 3.0 undecidable manual P -0.84 0
IV.LMD.HHZ. 2023-01-28T08:56:26.45 0.6 undecidable manual S 256 52.7028 105 0.28 45
IV.SFI.EHZ. 2023-01-28T08:56:25.83 0.6 undecidable manual S 231 51.3153 105 0 47
IV.PIEI.HHZ. 2023-01-28T08:56:22.04 0.3 undecidable manual P 168 74.6697 100 -0.31 64
IV.BADI.EHZ. 2023-01-28T08:56:22.36 0.3 undecidable manual P 186 76.4679 99 -0.27 64
IV.MPAG.EHZ. 2023-01-28T08:56:21.99 0.3 undecidable manual P 152 70.8735 100 0.22 66
IV.PARC.HHZ. 2023-01-28T08:56:20.02 0.3 undecidable manual P 188 61.2942 102 -0.3 66
IV.SFI.EHZ. 2023-01-28T08:56:18.69 0.1 undecidable manual P 231 51.3153 105 -0.15 92
IV.LMD.HHZ. 2023-01-28T08:56:18.88 0.1 undecidable manual P 256 52.7028 105 -0.16 92
IV.BRIS.HHZ. 2023-01-28T08:56:18.65 0.3 undecidable manual P 274 46.4202 107 0.55 64
Y1.T1756.HNZ. 2023-01-28T08:56:18.78 0.3 undecidable manual S 233 24.753 124 -0.51 66
IV.CPGN.EHZ. 2023-01-28T08:56:17.86 0.3 undecidable manual P 183 43.7229 108 0.14 70
Y1.T1718.HNZ. 2023-01-28T08:56:17.14 0.3 undecidable manual S 331 8.1807 156 0.75 65
IV.BLLA.EHZ. 2023-01-28T08:56:16.70 0.3 undecidable manual S 121 11.2776 149 -0.08 74
Y1.T1756.HNZ. 2023-01-28T08:56:14.81 0.1 negative manual P 233 24.753 124 -0.25 94
Y1.T1718.HNZ. 2023-01-28T08:56:13.33 0.1 undecidable manual P 331 8.1807 156 -0.06 100
IV.BLLA.EHZ. 2023-01-28T08:56:13.25 0.1 negative manual P 121 11.2776 149 -0.36 93
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SFI.HNN. ML:1.5 0.000071360925 0.672 AML other m 2023-01-28T08:56:26.19
IV.SFI.EHN. ML:1.2 0.0000372601525 0.3008 AML other m 2023-01-28T08:56:26.51
IV.SFI.EHE. ML:1.3 0.000048200225 0.1024 AML other m 2023-01-28T08:56:26.58
IV.SFI.HNE. ML:1.6 0.000100124185 0.6272 AML other m 2023-01-28T08:56:26.59
IV.LMD.HHN. ML:1.3 0.000043413585 0.7424 AML other m 2023-01-28T08:56:27.24
IV.LMD.HHE. ML:1.5 0.000066502115 0.4608 AML other m 2023-01-28T08:56:27.87
IV.PARC.HHN. ML:1.0 0.00002200255 0.6208 AML other m 2023-01-28T08:56:29.80
IV.MPAG.EHN. ML:1.3 0.00003050829 1.3824 AML other m 2023-01-28T08:56:31.00
IV.MPAG.EHE. ML:1.6 0.00005318841 1.44 AML other m 2023-01-28T08:56:32.64
IV.PIEI.HNE. ML:1.8 0.00010127639 1.328 AML other m 2023-01-28T08:56:32.70
IV.PIEI.HNN. ML:1.9 0.000111320315 0.8192 AML other m 2023-01-28T08:56:32.91
IV.PIEI.HHE. ML:1.2 0.0000265926165 1.2608 AML other m 2023-01-28T08:56:33.71
IV.PIEI.HHN. ML:1.3 0.000032128795 0.4832 AML other m 2023-01-28T08:56:33.88
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