Earthquake with magnitude of ML 2.0 on date 24-02-2023 and time 08:00:45 (UTC) in region 8 km NW Proceno (VT)

A magnitude ML 2.0 earthquake occured in region: 8 km NW Proceno (VT), on

  • 24-02-2023 08:00:45 (UTC)
  • 24-02-2023 09:00:45 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8180, 11.7850 at 4 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Proceno VT 8 557 557
Piancastagnaio SI 8 4230 4787
Castell'Azzara GR 9 1476 6263
Radicofani SI 9 1097 7360
San Casciano dei Bagni SI 10 1632 8992
Acquapendente VT 11 5506 14498
Abbadia San Salvatore SI 11 6444 20942
Onano VT 14 995 21937
Allerona TR 16 1794 23731
Sorano GR 16 3428 27159
Santa Fiora GR 16 2622 29781
Grotte di Castro VT 17 2683 32464
San Lorenzo Nuovo VT 18 2091 34555
Cetona SI 19 2755 37310
Castel Viscardo TR 19 2938 40248
Fabro TR 19 2876 43124

Municipalities with at least 50000 inhabitants

An earthquake occurred to
52 Km NW of Viterbo (67173 inhabitants)
55 Km E of Grosseto (82087 inhabitants)
59 Km SW of Perugia (166134 inhabitants)
67 Km SE of Siena (53903 inhabitants)
73 Km S of Arezzo (99543 inhabitants)
76 Km W of Terni (111501 inhabitants)
77 Km W of Foligno (57155 inhabitants)
81 Km N of Civitavecchia (52991 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 2.0 2023-02-24
08:00:45
42.818 11.7848 4 2023-02-24
08:11:57
Sala Sismica INGV-Roma 114752501
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-02-24 08:00:45 ± 0.07
Latitude 42.8180 ± 0.0054
Longitude 11.7848 ± 0.0049
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 114752501

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 336
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
Number of associated phases, regardless of their use for origin computation 69
Number of defining phases 48
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.31
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.09537
Number of stations at which the event was observed 50
Number of stations from which data was used for origin computation 34
Magnitude information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.2
Num. used stations 40
Type of magnitude ML
Reference to an origin 114752501
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-02-24 08:11:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.SCHR.EHZ. 2023-02-24T08:02:36.02 3.0 undecidable manual Sn -2.36 0
OX.CIMO.HHZ. 2023-02-24T08:02:30.99 3.0 undecidable manual Sg 7.49 0
1J.FX11.HHZ. 2023-02-24T08:02:27.01 3.0 positive manual Pg 19.74 0
OT.CGL1.HHZ. 2023-02-24T08:02:14.05 3.0 undecidable manual Pg 16.049999 0
IV.BADI.EHE. 2023-02-24T08:02:12.80 0.3 undecidable manual S 26 0.7680 50 6.04 0
OX.ACOM.HHZ. 2023-02-24T08:01:51.57 3.0 positive manual Pn 5.46 0
IV.SIRI.HNZ. 2023-02-24T08:01:45.98 3.0 undecidable manual Pn -1.44 0
IV.CTI.HHZ. 2023-02-24T08:01:45.10 3.0 undecidable manual Pg 8.58 0
GU.ROTM.HHZ. 2023-02-24T08:01:37.70 3.0 undecidable manual Pn 1.61 0
IV.EL6.EHZ. 2023-02-24T08:01:23.79 3.0 undecidable manual S -0.22 0
IV.MC2.EHZ. 2023-02-24T08:01:23.08 3.0 undecidable manual S 0
IV.ATBU.EHZ. 2023-02-24T08:01:17.49 3.0 undecidable manual S 0
IV.ATFO.HHZ. 2023-02-24T08:01:14.26 3.0 undecidable manual S 0
IV.ATVO.HHZ. 2023-02-24T08:01:11.50 0.6 undecidable manual S 39 0.7240 50 0.41 42
IV.ATMC.EHE. 2023-02-24T08:01:10.80 0.6 undecidable manual S 25 0.6952 50 0.55 40
IV.CASP.HHZ. 2023-02-24T08:01:10.20 0.6 undecidable manual S 268 0.6745 50 0.56 40
IV.SMA1.EHZ. 2023-02-24T08:01:09.02 3.0 undecidable manual P 0
IV.ATLO.HNN. 2023-02-24T08:01:09.90 0.6 undecidable manual S 42 0.6736 50 0.31 43
IV.ATMI.HHZ. 2023-02-24T08:01:09.10 0.3 undecidable manual S 34 0.6250 50 0.94 52
IV.MF5.EHZ. 2023-02-24T08:01:08.73 3.0 positive manual P -0.42 0
IV.MOMA.HHZ. 2023-02-24T08:01:07.20 0.6 undecidable manual S 91 0.5756 50 0.49 42
IV.EL6.EHZ. 2023-02-24T08:01:07.24 3.0 negative manual P 0.09 0
IV.ATVA.EHZ. 2023-02-24T08:01:06.82 3.0 undecidable manual S 0
IV.MC2.EHZ. 2023-02-24T08:01:06.91 3.0 negative manual P 0.64 0
IV.RM33.EHZ. 2023-02-24T08:01:06.95 0.1 undecidable manual P 106 1.0954 50 0.29 79
IV.CSP1.EHZ. 2023-02-24T08:01:06.13 1.0 positive manual P 75 1.0738 50 -0.17 20
IV.CAFI.HHZ. 2023-02-24T08:01:05.20 0.6 undecidable manual S 14 0.5279 50 -0.08 46
IV.NARO.HHE. 2023-02-24T08:01:05.18 0.1 undecidable manual P 36 0.9821 50 0.46 78
IV.NRCA.HHZ. 2023-02-24T08:01:04.84 0.6 undecidable manual P 89 0.9749 50 0.24 41
IV.SNTG.HHZ. 2023-02-24T08:01:04.43 0.1 undecidable manual P 62 0.9506 50 0.24 82
IV.FDMO.HHZ. 2023-02-24T08:01:04.85 0.1 undecidable manual P 77 0.9776 50 0.2 82
IV.PIEI.HHZ. 2023-02-24T08:01:04.61 3.0 negative manual P 0.67 0
IV.PARC.HHZ. 2023-02-24T08:01:03.20 0.6 negative manual P 22 0.8930 50 -0.01 44
IV.MML1.EHZ. 2023-02-24T08:01:03.64 0.1 undecidable manual P 71 0.9164 50 0.03 86
IV.ATBU.EHZ. 2023-02-24T08:01:03.42 3.0 undecidable manual P 0
IV.ATFO.HHZ. 2023-02-24T08:01:02.77 3.0 negative manual P 0.84 0
IV.ATPI.EHZ. 2023-02-24T08:01:01.01 1.0 positive manual P 35 0.7761 50 -0.19 22
IV.ATPC.HNE. 2023-02-24T08:01:01.62 0.1 undecidable manual P 36 0.8238 50 -0.4 82
IV.BADI.EHE. 2023-02-24T08:01:01.51 0.1 undecidable manual P 26 0.7680 50 0.44 82
IV.CRE.HHZ. 2023-02-24T08:01:01.88 0.1 undecidable manual P 9 0.8094 50 0.11 87
IV.CESI.HHZ. 2023-02-24T08:01:01.96 0.1 undecidable manual P 77 0.8409 50 -0.34 82
IV.TB03.DH1.01 2023-02-24T08:01:00.54 0.1 undecidable manual P 38 0.7401 50 -0.05 89
IV.MURB.HHZ. 2023-02-24T08:00:59.46 0.6 positive manual P 50 0.6997 50 -0.44 42
IV.ATMC.EHE. 2023-02-24T08:00:59.33 0.1 undecidable manual P 25 0.6952 50 -0.49 82
IV.TB02.DHE.01 2023-02-24T08:00:59.77 0.1 undecidable manual P 39 0.7159 50 -0.4 84
IV.ATVO.HHZ. 2023-02-24T08:00:59.47 0.6 positive manual P 39 0.7240 50 -0.83 36
IV.CESX.HHE. 2023-02-24T08:00:59.07 0.1 undecidable manual P 109 0.6250 50 0.45 84
IV.CASP.HHZ. 2023-02-24T08:00:58.77 0.6 positive manual P 268 0.6745 50 -0.7 38
IV.ATLO.HNN. 2023-02-24T08:00:58.76 0.1 undecidable manual P 42 0.6736 50 -0.68 77
IV.ATMI.HHZ. 2023-02-24T08:00:58.96 0.6 positive manual P 34 0.6250 50 0.34 43
IV.MOMA.HHZ. 2023-02-24T08:00:57.07 0.6 positive manual P 91 0.5756 50 -0.71 39
IV.FROS.CHE. 2023-02-24T08:00:57.97 0.1 undecidable manual P 311 0.6034 50 -0.28 88
IV.CAFI.HHZ. 2023-02-24T08:00:56.20 0.1 undecidable manual P 14 0.5279 50 -0.75 77
IV.ATVA.EHZ. 2023-02-24T08:00:56.81 3.0 undecidable manual P 0
IV.MGAB.HHZ. 2023-02-24T08:00:55.60 0.6 undecidable manual S 68 0.2581 98 0.01 50
IV.ARCI.HHZ. 2023-02-24T08:00:54.70 0.3 undecidable manual S 279 0.2293 99 0.19 72
IV.LATE.HHZ. 2023-02-24T08:00:53.30 0.6 undecidable manual S 176 0.2050 100 -0.27 48
IV.MALA4.EHN. 2023-02-24T08:00:52.20 0.1 undecidable manual P 310 0.2923 97 0.07 98
IV.MALA0.EHN. 2023-02-24T08:00:52.13 0.1 undecidable manual P 310 0.2950 97 -0.05 98
IV.MALA5.EHN. 2023-02-24T08:00:51.87 0.1 undecidable manual P 310 0.2932 97 -0.28 94
IV.MGAB.HHZ. 2023-02-24T08:00:51.02 0.1 undecidable manual P 68 0.2581 98 -0.34 93
IV.LATE.HHZ. 2023-02-24T08:00:50.02 0.1 positive manual P 176 0.2050 100 -0.17 97
IV.SACS.HHZ. 2023-02-24T08:00:50.00 0.6 undecidable manual S 71 0.0962 110 0.48 47
IV.ARCI.HHZ. 2023-02-24T08:00:50.71 0.1 positive manual P 279 0.2293 99 -0.02 100
TV.SF11.HHZ. 2023-02-24T08:00:49.50 0.6 undecidable manual S 303 0.0926 110 0.12 50
IV.MCIV.CHZ. 2023-02-24T08:00:49.60 0.3 undecidable manual S 244 0.0890 111 0.36 72
TV.SF11.HHZ. 2023-02-24T08:00:48.04 0.1 undecidable manual P 303 0.0926 110 0.27 97
IV.SACS.HHZ. 2023-02-24T08:00:48.00 0.1 undecidable manual P 71 0.0962 110 0.14 100
IV.MCIV.CHZ. 2023-02-24T08:00:47.84 0.1 positive manual P 244 0.0890 111 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MCIV.CHE. ML:2.4 0.004285 0.26 AML other m 2023-02-24T08:00:49.87
IV.MCIV.CHN. ML:2.3 0.003385 0.74 AML other m 2023-02-24T08:00:50.71
IV.ARCI.HHE. ML:2.0 0.0007235000000000001 0.2 AML other m 2023-02-24T08:00:55.79
IV.ARCI.HNE. ML:2.0 0.0007005000000000001 0.22 AML other m 2023-02-24T08:00:55.79
IV.MGAB.HHN. ML:2.3 0.001165 0.54 AML other m 2023-02-24T08:00:56.98
IV.MGAB.HNN. ML:2.3 0.00106 0.54 AML other m 2023-02-24T08:00:56.98
IV.MGAB.HHE. ML:2.4 0.001335 1.14 AML other m 2023-02-24T08:00:59.97
IV.MGAB.HNE. ML:2.4 0.0012749999999999999 1.14 AML other m 2023-02-24T08:00:59.97
IV.ARCI.HHN. ML:1.9 0.00046950000000000003 1.72 AML other m 2023-02-24T08:00:59.88
IV.ARCI.HNN. ML:1.9 0.0004715 1.7 AML other m 2023-02-24T08:00:59.03
IV.CAFI.HHE. ML:1.9 0.000176 1.24 AML other m 2023-02-24T08:01:05.83
IV.CAFI.HHN. ML:1.7 0.0001052 0.54 AML other m 2023-02-24T08:01:06.67
IV.MOMA.HHN. ML:2.1 0.0002205 1.26 AML other m 2023-02-24T08:01:08.95
IV.MOMA.HHE. ML:2.2 0.0002895 0.24 AML other m 2023-02-24T08:01:09.12
IV.ATVO.HHE. ML:2.3 0.0002505 0.28 AML other m 2023-02-24T08:01:15.16
IV.ATVO.HHN. ML:2.2 0.000236 0.5 AML other m 2023-02-24T08:01:15.20
IV.ATFO.HHN. ML:2.1 0.00016099999999999998 1.66 AML other m 2023-02-24T08:01:16.13
IV.CESI.HHE. ML:1.8 0.00007435 0.46 AML other m 2023-02-24T08:01:17.41
IV.ATFO.HHE. ML:2.2 0.0001945 1.16 AML other m 2023-02-24T08:01:18.35
IV.PIEI.HHE. ML:1.9 0.00007805000000000001 0.4 AML other m 2023-02-24T08:01:18.40
IV.ATPI.EHN. ML:2.0 0.00011899999999999999 0.84 AML other m 2023-02-24T08:01:19.38
IV.MML1.EHN. ML:2.0 0.000107 0.72 AML other m 2023-02-24T08:01:19.18
IV.ATPI.EHE. ML:2.0 0.0001175 1.24 AML other m 2023-02-24T08:01:19.03
IV.CRE.HHE. ML:1.7 0.00006135 1.2 AML other m 2023-02-24T08:01:19.34
IV.CRE.HHN. ML:1.9 0.00008455 0.78 AML other m 2023-02-24T08:01:19.56
IV.CESI.HHN. ML:1.9 0.00008599999999999999 0.7 AML other m 2023-02-24T08:01:20.63
IV.PARC.HHN. ML:2.0 0.00010525000000000001 1.36 AML other m 2023-02-24T08:01:20.76
IV.PARC.HHE. ML:1.9 0.00007869999999999999 1.66 AML other m 2023-02-24T08:01:20.99
IV.PIEI.HHN. ML:1.7 0.0000479 0.66 AML other m 2023-02-24T08:01:21.44
IV.SNTG.HHN. ML:2.0 0.00008724999999999999 0.52 AML other m 2023-02-24T08:01:22.90
IV.FDMO.HHN. ML:1.9 0.00007055000000000001 0.68 AML other m 2023-02-24T08:01:23.43
IV.FDMO.HHE. ML:1.8 0.00004965 1.54 AML other m 2023-02-24T08:01:23.83
IV.NRCA.HHE. ML:1.9 0.00007014999999999998 1.5 AML other m 2023-02-24T08:01:23.14
IV.SNTG.HHE. ML:2.1 0.0001235 0.68 AML other m 2023-02-24T08:01:25.16
IV.MML1.EHE. ML:1.9 0.00006805 0.5 AML other m 2023-02-24T08:01:26.22
IV.RM33.EHE. ML:2.0 0.0000697 1.2 AML other m 2023-02-24T08:01:26.89
IV.RM33.EHN. ML:2.0 0.00006685 1.54 AML other m 2023-02-24T08:01:26.20
IV.NRCA.HHN. ML:1.8 0.000059749999999999995 0.54 AML other m 2023-02-24T08:01:28.23
IV.SMA1.EHE. ML:2.2 0.000121 0.44 AML other m 2023-02-24T08:01:31.34
IV.SMA1.EHN. ML:2.2 0.00009939999999999999 0.5 AML other m 2023-02-24T08:01:34.47
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