Earthquake with magnitude of ML 2.9 on date 24-05-2023 and time 15:29:39 (UTC) in region 2 km E Elva (CN)

A magnitude ML 2.9 earthquake occured in region: 2 km E Elva (CN), on

  • 24-05-2023 15:29:39 (UTC)
  • 24-05-2023 17:29:39 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 44.5410, 7.1190 at 11 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
Elva CN 2 97 97
Stroppo CN 4 103 200
Macra CN 7 59 259
Casteldelfino CN 7 157 416
Sampeyre CN 7 1022 1438
Prazzo CN 8 170 1608
Celle di Macra CN 8 100 1708
Bellino CN 9 109 1817
Marmora CN 9 68 1885
Canosio CN 10 80 1965
Pontechianale CN 12 179 2144
Acceglio CN 12 162 2306
San Damiano Macra CN 12 430 2736
Frassino CN 13 265 3001
Cartignano CN 15 190 3191
Oncino CN 16 76 3267
Melle CN 16 292 3559
Castelmagno CN 16 66 3625
Ostana CN 18 83 3708
Crissolo CN 18 168 3876
Valmala CN 18 52 3928
Pradleves CN 19 250 4178
Roccabruna CN 19 1585 5763
Brossasco CN 20 1084 6847
Sanfront CN 20 2395 9242

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km W of Cuneo (56081 inhabitants)
68 Km SW of Moncalieri (57294 inhabitants)
74 Km SW of Torino (890529 inhabitants)
95 Km W of Asti (76202 inhabitants)
96 Km NW of Sanremo (54807 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
Preliminary map of the earthquake effects from the web questionnaire

Preliminary map of the earthquake effects from the web questionnaire

This map shows the distribution of earthquake resentment in the area, expressed in terms of intensity on the MCS scale (Mercalli-Cancani-Sieberg). Intensities are determined using data from questionnaires collected on the website http://www.hsit.it. The intensities shown are determined considering all the reports received from each municipality, and are all the more reliable the greater the number of questionnaires. The collected data are subjected to an automatic statistical filter, but are not checked individually. In particular, intensities greater than or equal to the VI degree of the MCS or EMS scale require on-site verification by specialized personnel. The black star is the epicenter of the earthquake that occurred. This map is updated every time citizens fill out new questionnaires. The number of questionnaires processed to obtain this map, the date and time of the last update are shown at the top right.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 2.9 2023-05-24
15:29:39
44.5412 7.1187 11 2023-05-24
15:44:11
Sala Sismica INGV-Roma 117685191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-05-24 15:29:39 ± 0.19
Latitude 44.5412 ± 0.0063
Longitude 7.1187 ± 0.0101
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 117685191

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 778
Semi-minor axis of confidence ellipse (meter) 659
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 57
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 111
Number of associated phases, regardless of their use for origin computation 58
Number of defining phases 20
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) 1.10617
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 13
Magnitude information

ML:2.9

Field Value
Value 2.9
Uncertainty 0.3
Num. used stations 61
Type of magnitude ML
Reference to an origin 117685191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-05-24 15:44:11
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
TV.SF11.HHZ. 2023-05-24T15:31:33.56 3.0 undecidable manual Sg 12.96 0
IV.SFI.EHZ. 2023-05-24T15:31:29.38 3.0 undecidable manual Sg 14.8 0
IV.MOCO.HHZ. 2023-05-24T15:31:19.08 3.0 positive manual Pn 1.77 0
IV.TREG.HNZ. 2023-05-24T15:31:15.87 3.0 undecidable manual Sg 11.74 0
IV.RIBO.EHZ.01 2023-05-24T15:31:10.89 3.0 undecidable manual Sn 1.17 0
IV.GUMA.HHZ. 2023-05-24T15:31:03.46 3.0 positive manual Pg 13.13 0
IV.LNSS.HHZ. 2023-05-24T15:31:02.90 3.0 undecidable manual Pg 12.82 0
MN.VSL.HHZ. 2023-05-24T15:31:00.74 3.0 positive manual Pn 2.59 0
OE.WTTA.HHZ. 2023-05-24T15:30:46.81 3.0 negative manual Pn 4.31 0
RD.PGF.BHZ. 2023-05-24T15:30:46.94 3.0 undecidable manual Sn -2.05 0
TV.SF11.HHZ. 2023-05-24T15:30:46.38 3.0 undecidable manual Pg 10.24 0
IV.AGLI.HHZ. 2023-05-24T15:30:39.41 3.0 undecidable manual Pn 2.98 0
ST.PANI.EHZ. 2023-05-24T15:30:31.40 3.0 positive manual Pn 0.3 0
ST.RONC.EHZ. 2023-05-24T15:30:28.88 3.0 undecidable manual Pn 4.28 0
FR.AJAC.HHZ.00 2023-05-24T15:30:26.85 3.0 negative manual Pn 2.18 0
CH.BNALP.HHZ. 2023-05-24T15:30:24.32 3.0 positive manual Pg 4.67 0
GU.MAIM.HHZ. 2023-05-24T15:30:20.36 3.0 negative manual Pn 0.7 0
RD.PGF.BHZ. 2023-05-24T15:30:19.66 3.0 positive manual Pn 1.28 0
GU.EQUI.HHZ. 2023-05-24T15:30:16.10 3.0 positive manual Pn 0.5 0
GU.PCP.HHZ. 2023-05-24T15:30:13.75 3.0 undecidable manual S -1.2 0
RD.ORIF.BHZ. 2023-05-24T15:30:10.00 1.0 undecidable manual S 294 106.2159 50 -0.09 22
CH.MMK.HHZ. 2023-05-24T15:30:10.52 3.0 positive manual Pg 2.95 0
IV.QLNO.HHZ. 2023-05-24T15:30:09.76 3.0 undecidable manual S -1.37 0
GU.GORR.HHZ. 2023-05-24T15:30:08.73 3.0 undecidable manual Pn 2.09 0
GU.CANO.HHZ. 2023-05-24T15:30:07.86 3.0 undecidable manual S -2.04 0
GU.SATI.HHZ. 2023-05-24T15:30:07.62 3.0 negative manual P 2.62 0
GU.RORO.HHZ. 2023-05-24T15:30:05.11 3.0 undecidable manual S -2.62 0
GU.RNCA.HHZ. 2023-05-24T15:30:04.02 3.0 negative manual P 0.71 0
IV.MRGE.HHZ. 2023-05-24T15:30:02.80 3.0 positive manual P 0.65 0
FR.SAOF.HHZ.00 2023-05-24T15:30:00.35 3.0 undecidable manual S -1.77 0
GU.GBOS.HHZ. 2023-05-24T15:29:59.07 0.6 undecidable manual S 120 66.1893 50 -0.32 44
MN.BNI.HHZ. 2023-05-24T15:29:59.04 0.6 undecidable manual S 329 66.4779 50 -0.44 43
GU.ROTM.HHZ. 2023-05-24T15:29:58.34 3.0 positive manual P 0.7 0
GU.PCP.HHZ. 2023-05-24T15:29:58.79 3.0 positive manual P -0.47 0
4P.IT06A.HHZ. 2023-05-24T15:29:58.33 0.6 undecidable manual S 90 60.1953 50 0.51 43
GU.CIRO.HHZ. 2023-05-24T15:29:58.90 0.3 undecidable manual P 17 122.7882 50 -0.7 53
GU.TRAV.HHZ. 2023-05-24T15:29:58.60 0.6 positive manual P 24 118.3926 50 -0.32 40
RD.ORIF.BHZ. 2023-05-24T15:29:57.94 0.6 undecidable manual P 294 106.2159 50 0.9 33
GU.LSD.HHZ. 2023-05-24T15:29:56.86 0.1 undecidable manual P 1 101.9202 50 0.49 80
GU.CANO.HHZ. 2023-05-24T15:29:56.05 3.0 positive manual P -0.37 0
IV.QLNO.HHZ. 2023-05-24T15:29:56.62 3.0 positive manual P -0.49 0
GU.BURY.HHZ. 2023-05-24T15:29:55.80 3.0 negative manual P 0.34 0
GU.IMI.HHZ. 2023-05-24T15:29:55.77 3.0 negative manual P -0.09 0
GU.RORO.HHZ. 2023-05-24T15:29:54.37 3.0 undecidable manual P -0.83 0
GU.RRL.HHZ. 2023-05-24T15:29:54.77 0.6 undecidable manual S 329 49.4172 50 -0.17 47
GU.MGRO.HHZ. 2023-05-24T15:29:53.19 3.0 negative manual P -0.11 0
MN.BNI.HHZ. 2023-05-24T15:29:51.06 0.1 negative manual P 329 66.4779 50 0.15 92
GU.RSP.HHE. 2023-05-24T15:29:51.30 0.6 undecidable manual P 10 68.2761 50 0.1 46
FR.SAOF.HHZ.00 2023-05-24T15:29:51.90 3.0 undecidable manual P -0.15 0
GU.GBOS.HHZ. 2023-05-24T15:29:51.09 0.6 undecidable manual P 120 66.1893 50 0.23 45
GU.STV.HHZ. 2023-05-24T15:29:50.84 0.6 undecidable manual S 153 36.741 50 -0.71 42
GU.BHB.HNZ. 2023-05-24T15:29:50.50 0.6 undecidable manual S 19 34.5432 50 -0.47 46
4P.IT06A.HHZ. 2023-05-24T15:29:50.74 0.3 undecidable manual P 90 60.1953 50 0.79 58
GU.RRL.HHZ. 2023-05-24T15:29:48.33 0.1 negative manual P 329 49.4172 50 0.04 97
GU.STV.HHZ. 2023-05-24T15:29:46.32 0.3 negative manual P 153 36.741 50 -0.01 75
GU.ENR.HHZ. 2023-05-24T15:29:46.98 1.0 undecidable manual P 145 41.9247 50 -0.16 24
GU.BHB.HNZ. 2023-05-24T15:29:45.97 0.1 negative manual P 19 34.5432 50 -0.03 100
GU.PZZ.HHZ. 2023-05-24T15:29:41.18 0.6 undecidable manual P 183 3.8961 160 -0.32 50
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.PZZ.HHN. ML:4.0 0.15288659999999998 0.2048 AML other m 2023-05-24T15:29:42.14
GU.PZZ.HHE. ML:3.8 0.114847505 0.1792 AML other m 2023-05-24T15:29:43.35
GU.STV.HHE. ML:2.9 0.0029548015 0.2688 AML other m 2023-05-24T15:29:51.07
GU.BHB.HNN. ML:3.0 0.004285921 0.192 AML other m 2023-05-24T15:29:51.23
GU.BHB.HHN. ML:3.0 0.0039215515 0.2816 AML other m 2023-05-24T15:29:51.69
GU.STV.HHN. ML:2.6 0.0016827934999999999 0.3712 AML other m 2023-05-24T15:29:52.06
GU.BHB.HHE. ML:2.9 0.0033250000000000003 0.28 AML other m 2023-05-24T15:29:53.41
GU.BHB.HNE. ML:2.9 0.003538292 0.2816 AML other m 2023-05-24T15:29:53.41
GU.RRL.HHE. ML:2.8 0.001545 0.28 AML other m 2023-05-24T15:29:56.59
GU.RRL.HHN. ML:2.7 0.0012397170000000002 0.1792 AML other m 2023-05-24T15:29:55.85
4P.IT06A.HHN. ML:3.3 0.0037010135 0.2176 AML other m 2023-05-24T15:30:03.78
4P.IT06A.HHE. ML:3.4 0.00489 0.42 AML other m 2023-05-24T15:29:59.37
GU.GBOS.HHN. ML:3.0 0.0018678219999999999 0.384 AML other m 2023-05-24T15:29:59.32
GU.GBOS.HHE. ML:3.0 0.001965 0.3 AML other m 2023-05-24T15:29:59.50
MN.BNI.HNE. ML:2.5 0.0006124159 0.32 AML other m 2023-05-24T15:30:00.92
MN.BNI.HHE. ML:2.5 0.0006168137 0.32 AML other m 2023-05-24T15:30:00.92
FR.SAOF.HHN.00 ML:2.9 0.0012969925 0.1536 AML other m 2023-05-24T15:30:01.94
FR.SAOF.HHE.00 ML:3.0 0.0018742399999999999 0.2176 AML other m 2023-05-24T15:30:01.65
MN.BNI.HHN. ML:2.4 0.000398 0.3 AML other m 2023-05-24T15:30:03.88
MN.BNI.HNN. ML:2.3 0.00039200000000000004 0.32 AML other m 2023-05-24T15:30:03.89
GU.MGRO.HNN. ML:3.0 0.0015260285 0.192 AML other m 2023-05-24T15:30:04.35
GU.MGRO.HHN. ML:3.0 0.001560697 0.2432 AML other m 2023-05-24T15:30:04.93
GU.MGRO.HNE. ML:3.0 0.0014710455 0.2432 AML other m 2023-05-24T15:30:04.93
GU.MGRO.HHE. ML:3.0 0.0016 0.5 AML other m 2023-05-24T15:30:05.34
GU.RORO.HHN. ML:3.2 0.0017549999999999998 0.2 AML other m 2023-05-24T15:30:06.59
GU.RORO.HHE. ML:3.1 0.0015 0.16 AML other m 2023-05-24T15:30:06.81
GU.IMI.HHE. ML:3.1 0.0013057579 0.2816 AML other m 2023-05-24T15:30:07.30
GU.IMI.HHN. ML:3.4 0.00249328 0.1536 AML other m 2023-05-24T15:30:07.99
GU.BURY.HHN. ML:2.9 0.0009268593 0.256 AML other m 2023-05-24T15:30:08.19
GU.BURY.HNN. ML:3.1 0.0013319999999999999 1.64 AML other m 2023-05-24T15:30:07.98
GU.BURY.HHE. ML:3.1 0.00131015555 0.2176 AML other m 2023-05-24T15:30:07.98
GU.BURY.HNE. ML:3.0 0.0011235 0.26 AML other m 2023-05-24T15:30:08.21
GU.CANO.HHN. ML:3.2 0.0015722275 0.2816 AML other m 2023-05-24T15:30:09.19
IV.QLNO.HHE. ML:3.0 0.00095998925 0.3456 AML other m 2023-05-24T15:30:10.58
RD.ORIF.BHN. ML:2.6 0.00034670645 0.32 AML other m 2023-05-24T15:30:11.31
RD.ORIF.BHE. ML:2.5 0.0003105 0.4 AML other m 2023-05-24T15:30:12.03
GU.LSD.HHE. ML:3.0 0.0009455 0.26 AML other m 2023-05-24T15:30:12.21
IV.QLNO.HHN. ML:2.9 0.0008089999999999999 0.36 AML other m 2023-05-24T15:30:12.65
GU.LSD.HHN. ML:2.8 0.0006422318499999999 0.2432 AML other m 2023-05-24T15:30:13.20
GU.PCP.HHE. ML:2.8 0.000527 0.38 AML other m 2023-05-24T15:30:14.40
GU.CANO.HHE. ML:3.3 0.0019375059999999999 0.4096 AML other m 2023-05-24T15:30:14.40
GU.TRAV.HHE. ML:2.7 0.000354 0.32 AML other m 2023-05-24T15:30:15.00
GU.TRAV.HHN. ML:2.6 0.00029971919999999995 0.4736 AML other m 2023-05-24T15:30:16.05
GU.PCP.HHN. ML:2.8 0.0004945 1.68 AML other m 2023-05-24T15:30:18.99
GU.CIRO.HHN. ML:2.3 0.000133424085 0.2304 AML other m 2023-05-24T15:30:26.60
GU.ROTM.HHN. ML:3.5 0.003204953 0.384 AML other m 2023-05-24T15:30:19.16
IV.MRGE.HHN. ML:2.9 0.000434926 0.6528 AML other m 2023-05-24T15:30:24.68
GU.CIRO.HHE. ML:2.5 0.00023999999999999998 1.64 AML other m 2023-05-24T15:30:25.13
GU.RNCA.HHE. ML:2.7 0.0002715 1.58 AML other m 2023-05-24T15:30:27.07
GU.RNCA.HHN. ML:2.8 0.00035487694999999995 0.32 AML other m 2023-05-24T15:30:28.42
IV.MRGE.HHE. ML:2.8 0.0003805 0.52 AML other m 2023-05-24T15:30:29.94
GU.ROTM.HHE. ML:3.4 0.002585 0.52 AML other m 2023-05-24T15:30:29.95
GU.GORR.HHN. ML:2.9 0.00033121995000000005 0.4992 AML other m 2023-05-24T15:30:34.94
GU.SATI.HHE. ML:2.5 0.00016 0.44 AML other m 2023-05-24T15:30:37.63
GU.SATI.HNE. ML:2.5 0.00016249999999999997 0.96 AML other m 2023-05-24T15:30:38.63
GU.SATI.HNN. ML:2.5 0.00014050000000000003 0.48 AML other m 2023-05-24T15:30:38.20
GU.SATI.HHN. ML:2.5 0.00014050000000000003 0.48 AML other m 2023-05-24T15:30:38.20
GU.GORR.HHE. ML:2.9 0.00032099999999999994 0.46 AML other m 2023-05-24T15:30:40.25
CH.MMK.HHE. ML:2.0 0.000037 1.02 AML other m 2023-05-24T15:30:41.68
CH.MMK.HHN. ML:1.8 0.000026099999999999997 1.36 AML other m 2023-05-24T15:30:42.01
GU.ENR.HHN. ML:3.0 0.0035524050000000002 0.0768 AML other m 2023-05-24T15:29:53.66
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