Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 26-01-2023 and time 13:05:04 (UTC) in region 4 km W Cesenatico (FC)

A magnitude ML 2.1 earthquake occured in region: 4 km W Cesenatico (FC), on

  • 26-01-2023 13:05:04 (UTC)
  • 26-01-2023 14:05:04 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 44.1840, 12.3470 at 18 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
Cesenatico FC 4 25796 25796
Gambettola FC 7 10660 36456
Cervia RA 9 28940 65396
Gatteo FC 9 9068 74464
Bellaria-Igea Marina RN 10 19519 93983
Cesena FC 10 96758 190741
San Mauro Pascoli FC 10 11690 202431
Savignano sul Rubicone FC 11 17766 220197
Montiano FC 12 1716 221913
Longiano FC 12 7126 229039
Santarcangelo di Romagna RN 16 22089 251128
Roncofreddo FC 16 3386 254514
Borghi FC 17 2843 257357
Bertinoro FC 17 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 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)
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

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 2.1 2023-01-26
13:05:04		 44.1843 12.3473 18 2023-01-26
13:16:17		 Sala Sismica INGV-Roma 113807841
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-01-26 13:05:04 ± 0.1
Latitude 44.1843 ± 0.0072
Longitude 12.3473 ± 0.0075
Depth (km) 18 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 113807841

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 671
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 339
Circular confidence region, given by single value of horizontal uncertainty (meter) 670.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 2.18805
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 19
Magnitude information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 36
Type of magnitude ML
Reference to an origin 113807841
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-01-26 13:16:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
1J.FX12.HHZ.00 2023-01-26T13:07:00.69 3.0 undecidable manual Pg 19.620001 0
CH.DIX.HHZ. 2023-01-26T13:06:56.28 3.0 undecidable manual Sn 4.23 0
IV.MILZ.HHZ. 2023-01-26T13:06:52.67 3.0 undecidable manual Pg 15.79 0
GU.RORO.HHZ. 2023-01-26T13:06:48.54 3.0 undecidable manual Sg 18.51 0
IV.PAOL.HHZ. 2023-01-26T13:06:48.63 3.0 undecidable manual Sg 6.64 0
IV.SPS2.HHZ. 2023-01-26T13:06:42.12 3.0 undecidable manual Pg 12.94 0
IV.SELL.HHZ. 2023-01-26T13:06:32.09 3.0 undecidable manual Pn -2.3 0
CH.MUGIO.HHZ. 2023-01-26T13:06:24.63 3.0 undecidable manual Sn -1.55 0
GU.BURY.HHZ. 2023-01-26T13:06:14.27 3.0 positive manual Pg 16.26 0
IV.MABI.HHZ. 2023-01-26T13:06:09.91 3.0 undecidable manual Sn -0.79 0
IV.FDMO.HHZ. 2023-01-26T13:05:48.20 3.0 undecidable manual S 2.05 0
SI.ABSI.HHZ. 2023-01-26T13:05:47.72 3.0 negative manual Pn 0.89 0
IV.SNTG.HHZ. 2023-01-26T13:05:40.39 3.0 undecidable manual S 0.19 0
NI.VINO.HHZ. 2023-01-26T13:05:40.14 0.1 undecidable manual P 17 2.1692 54 -0.34 46
OX.DRE.HHZ. 2023-01-26T13:05:40.51 0.3 undecidable manual P 24 2.1880 54 -0.23 35
OX.CIMO.HHZ. 2023-01-26T13:05:39.39 3.0 negative manual Pn -0.43 0
SI.LUSI.HHZ. 2023-01-26T13:05:39.13 3.0 positive manual Pn 0.74 0
NI.PALA.HHZ. 2023-01-26T13:05:39.64 0.1 undecidable manual P 11 2.0990 54 0.13 50
ST.PANI.EHZ. 2023-01-26T13:05:38.48 0.1 undecidable manual P 339 1.9965 54 0.38 51
OX.MLN.HHZ. 2023-01-26T13:05:37.66 0.3 undecidable manual P 5 1.9731 54 -0.11 42
IV.NRCA.HHZ. 2023-01-26T13:05:32.47 3.0 positive manual Pg 1.93 0
IV.TREG.HNZ. 2023-01-26T13:05:32.56 3.0 undecidable manual Pg 0.39 0
IV.MF5.EHZ. 2023-01-26T13:05:31.59 3.0 negative manual Pg 1.24 0
IV.MC2.EHZ. 2023-01-26T13:05:30.91 3.0 negative manual Pg 1.03 0
IV.BDI.HHZ. 2023-01-26T13:05:29.98 3.0 positive manual P 2.37 0
IV.CSP1.EHZ. 2023-01-26T13:05:28.78 3.0 negative manual P 1.01 0
IV.CESI.HHZ. 2023-01-26T13:05:28.58 3.0 negative manual P 1 0
IV.FDMO.HHZ. 2023-01-26T13:05:28.67 3.0 negative manual P 0.78 0
IV.MPAG.EHZ. 2023-01-26T13:05:26.18 0.6 undecidable manual S 152 0.6295 97 0.5 44
IV.PARC.HHZ. 2023-01-26T13:05:23.46 0.3 undecidable manual S 188 0.5414 98 0.37 69
IV.CAFI.HHZ. 2023-01-26T13:05:21.27 3.0 negative manual P -0.7 0
IV.LMD.HHZ. 2023-01-26T13:05:21.59 0.3 undecidable manual S 257 0.4712 99 0.54 67
IV.SFI.EHZ. 2023-01-26T13:05:20.64 0.3 undecidable manual S 232 0.4551 100 0.06 75
IV.PESA.HHZ. 2023-01-26T13:05:20.76 0.3 undecidable manual S 124 0.4290 101 0.94 56
IV.SSFR.HHZ. 2023-01-26T13:05:20.43 3.0 positive manual P -0.18 0
IV.ATVO.HHZ. 2023-01-26T13:05:19.83 3.0 negative manual P -0.49 0
IV.ARVD.HHZ. 2023-01-26T13:05:19.71 0.1 undecidable manual P 148 0.8085 95 -0.07 92
IV.FRON.EHZ. 2023-01-26T13:05:18.08 0.3 undecidable manual P 158 0.7195 96 -0.19 69
IV.RUFI.EHZ. 2023-01-26T13:05:17.84 0.3 undecidable manual P 240 0.6943 96 0 71
IV.BADI.EHZ. 2023-01-26T13:05:17.20 0.3 undecidable manual P 186 0.6781 96 -0.36 67
IV.CRE.HHZ. 2023-01-26T13:05:17.05 0.1 undecidable manual P 207 0.6331 96 0.26 92
IV.MPAG.EHZ. 2023-01-26T13:05:16.38 0.3 undecidable manual P 152 0.6295 97 -0.34 68
IV.PARC.HHZ. 2023-01-26T13:05:14.64 0.1 undecidable manual P 188 0.5414 98 -0.59 85
IV.LMD.HHZ. 2023-01-26T13:05:13.65 0.1 undecidable manual P 257 0.4712 99 -0.4 92
IV.BRIS.HHZ. 2023-01-26T13:05:13.51 0.1 undecidable manual P 276 0.4182 101 0.36 94
Y1.T1756.HNZ. 2023-01-26T13:05:13.79 0.6 undecidable manual S 235 0.2158 116 0.03 52
IV.SFI.EHZ. 2023-01-26T13:05:13.36 0.1 undecidable manual P 232 0.4551 100 -0.42 92
IV.PESA.HHZ. 2023-01-26T13:05:13.21 0.1 undecidable manual P 124 0.4290 101 -0.13 99
IV.BLLA.EHZ. 2023-01-26T13:05:11.25 0.3 undecidable manual S 115 0.0971 143 0.24 77
IV.BRSN.HNZ. 2023-01-26T13:05:10.43 0.3 undecidable manual P 298 0.2158 116 0.59 69
Y1.T1756.HNZ. 2023-01-26T13:05:09.61 0.1 undecidable manual P 235 0.2158 116 -0.23 100
IV.BLLA.EHZ. 2023-01-26T13:05:07.90 0.1 undecidable manual P 115 0.0971 143 -0.35 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PESA.HHN. ML:2.7 0.0012324999999999999 0.58 AML other m 2023-01-26T13:05:21.25
IV.PESA.HHE. ML:2.8 0.0015249999999999999 0.14 AML other m 2023-01-26T13:05:21.52
IV.SFI.HNN. ML:2.1 0.0003275 1.2 AML other m 2023-01-26T13:05:22.94
IV.SFI.EHN. ML:2.1 0.000317 1.2 AML other m 2023-01-26T13:05:22.94
IV.SFI.HNE. ML:2.2 0.00036899999999999997 0.58 AML other m 2023-01-26T13:05:22.46
IV.SFI.EHE. ML:2.2 0.00038 0.58 AML other m 2023-01-26T13:05:22.46
IV.LMD.HHN. ML:2.2 0.0003855 0.34 AML other m 2023-01-26T13:05:22.61
IV.LMD.HHE. ML:2.3 0.0005225 0.6 AML other m 2023-01-26T13:05:23.73
IV.PARC.HHE. ML:2.0 0.000199 0.2 AML other m 2023-01-26T13:05:24.02
IV.PARC.HHN. ML:1.9 0.0001725 0.86 AML other m 2023-01-26T13:05:24.52
IV.BRIS.HHE. ML:1.6 0.00011599999999999999 1.54 AML other m 2023-01-26T13:05:26.11
IV.MPAG.EHN. ML:2.2 0.00026249999999999993 0.26 AML other m 2023-01-26T13:05:27.90
IV.MPAG.EHE. ML:2.1 0.00019800000000000002 0.24 AML other m 2023-01-26T13:05:28.74
IV.BRIS.HHN. ML:1.6 0.0000965 0.38 AML other m 2023-01-26T13:05:31.75
IV.RUFI.EHN. ML:1.8 0.00010055 1.2 AML other m 2023-01-26T13:05:33.14
IV.FRON.EHN. ML:2.2 0.0001975 0.88 AML other m 2023-01-26T13:05:34.75
IV.SSFR.HHN. ML:2.7 0.0006035 0.7 AML other m 2023-01-26T13:05:34.63
IV.SSFR.HHE. ML:2.6 0.0005425 0.18 AML other m 2023-01-26T13:05:34.90
IV.SSFR.HNE. ML:2.7 0.0005595 1.4 AML other m 2023-01-26T13:05:34.91
IV.FRON.EHE. ML:2.2 0.0001885 1.32 AML other m 2023-01-26T13:05:35.75
IV.ARVD.HHE. ML:2.1 0.000143 0.8 AML other m 2023-01-26T13:05:35.15
IV.SSFR.HNN. ML:2.8 0.0006975 0.68 AML other m 2023-01-26T13:05:35.40
IV.ARVD.HHN. ML:2.2 0.0001625 0.74 AML other m 2023-01-26T13:05:35.89
IV.CRE.HHN. ML:2.2 0.0002485 1.7 AML other m 2023-01-26T13:05:35.11
IV.CRE.HHE. ML:1.9 0.0001245 1.72 AML other m 2023-01-26T13:05:36.10
IV.RUFI.EHE. ML:2.0 0.00014885 0.42 AML other m 2023-01-26T13:05:37.74
IV.BADI.EHE. ML:2.1 0.0001795 0.4 AML other m 2023-01-26T13:05:37.55
IV.BADI.EHN. ML:2.1 0.000177 1.54 AML other m 2023-01-26T13:05:37.89
IV.ATVO.HHN. ML:2.1 0.000138 1.4 AML other m 2023-01-26T13:05:39.10
IV.CAFI.HHE. ML:1.9 0.00007939999999999999 1.28 AML other m 2023-01-26T13:05:40.19
IV.SNTG.HHE. ML:2.2 0.00013350000000000002 0.72 AML other m 2023-01-26T13:05:41.71
IV.ATVO.HHE. ML:2.2 0.0001895 1.44 AML other m 2023-01-26T13:05:41.95
IV.CAFI.HHN. ML:1.9 0.00008245 1.12 AML other m 2023-01-26T13:05:44.69
IV.SNTG.HHN. ML:2.3 0.00015900000000000002 0.8 AML other m 2023-01-26T13:05:46.70
IV.CSP1.EHN. ML:2.8 0.00038849999999999996 1.64 AML other m 2023-01-26T13:05:50.93
IV.CESI.HHN. ML:2.3 0.00011355 0.8 AML other m 2023-01-26T13:05:50.57
IV.CESI.HHE. ML:2.3 0.0001149 0.42 AML other m 2023-01-26T13:05:50.89
IV.CSP1.EHE. ML:3.0 0.0005905 0.54 AML other m 2023-01-26T13:05:51.40
IV.FDMO.HHN. ML:2.2 0.00009855 0.74 AML other m 2023-01-26T13:05:51.54
IV.BDI.HHE. ML:1.9 0.000051699999999999996 1.1 AML other m 2023-01-26T13:05:52.27
IV.BDI.HHN. ML:2.1 0.00006964999999999999 1.2 AML other m 2023-01-26T13:05:52.38
IV.FDMO.HHE. ML:2.2 0.0000979 0.38 AML other m 2023-01-26T13:05:53.57
IV.MF5.EHE. ML:2.9 0.00033650000000000005 0.42 AML other m 2023-01-26T13:05:58.40
IV.NRCA.HHN. ML:2.3 0.00008130000000000001 0.92 AML other m 2023-01-26T13:05:58.50
OX.MARN.HHE. ML:2.4 0.00007795 0.82 AML other m 2023-01-26T13:05:59.43
IV.NRCA.HHE. ML:0.0 0.00009185 1.54 AML other m 2023-01-26T13:05:59.88
OX.MARN.HHN. ML:0.0 0.00008444999999999999 0.48 AML other m 2023-01-26T13:06:02.38
IV.TREG.EHN. ML:0.0 0.000143 0.22 AML other m 2023-01-26T13:06:02.73
OX.DRE.HHN. ML:0.0 0.00006635 1.24 AML other m 2023-01-26T13:06:08.00
OX.DRE.HHE. ML:0.0 0.00006934999999999999 0.22 AML other m 2023-01-26T13:06:09.54
IV.MF5.EHN. ML:0.0 0.000239 0.42 AML other m 2023-01-26T13:06:14.85
SI.LUSI.HHE. ML:0.0 0.0000431 0.58 AML other m 2023-01-26T13:06:15.21
OX.CIMO.HHE. ML:0.0 0.000018775 0.42 AML other m 2023-01-26T13:06:19.05
OX.CIMO.HHN. ML:0.0 0.0000229 0.84 AML other m 2023-01-26T13:06:20.66
SI.LUSI.HHN. ML:0.0 0.00006025 0.68 AML other m 2023-01-26T13:06:21.81
IV.TREG.EHE. ML:0.0 0.0002255 0.12 AML other m 2023-01-26T13:06:24.85
NI.VINO.HHE. ML:0.0 0.00005 1.42 AML other m 2023-01-26T13:06:26.24
NI.VINO.HHN. ML:0.0 0.00004245 0.78 AML other m 2023-01-26T13:06:27.64
SI.ABSI.HHN. ML:0.0 0.000051000000000000006 0.94 AML other m 2023-01-26T13:06:33.43
SI.ABSI.HHE. ML:0.0 0.00005025 1.44 AML other m 2023-01-26T13:06:34.14
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download