Earthquake with magnitude of ML 1.0 on date 04-04-2023 and time 14:30:52 (Italy) in region 9 km NW Ceresole Reale (TO)

A magnitude ML 1.0 earthquake occured in region: 9 km NW Ceresole Reale (TO), on

  • 04-04-2023 12:30:52 (UTC)
  • 04-04-2023 14:30:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 45.5100, 7.2020 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
Ceresole Reale TO 9 156 156
Valsavarenche AO 9 161 317
Rhêmes-Notre-Dame AO 9 89 406
Noasca TO 11 137 543
Cogne AO 16 1417 1960
Rhêmes-Saint-Georges AO 17 194 2154
Groscavallo TO 17 204 2358
Valgrisenche AO 17 196 2554
Chialamberto TO 20 345 2899

Municipalities with at least 50000 inhabitants

An earthquake occurred to
61 Km NW of Torino (890529 inhabitants)
68 Km NW of Moncalieri (57294 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
Reviewed
Rev100
ML 1.0 2023-04-04
12:30:52
45.5102 7.2018 11 2023-04-04
13:03:19
Sala Sismica INGV-Roma 116062421
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-04 12:30:52 ± 0.12
Latitude 45.5102 ± 0.0063
Longitude 7.2018 ± 0.0090
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 116062421

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 687
Semi-minor axis of confidence ellipse (meter) 405
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 117
Circular confidence region, given by single value of horizontal uncertainty (meter) 690.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 18
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.75723
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.3
Num. used stations 18
Type of magnitude ML
Reference to an origin 116062421
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-04 13:03:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
CH.MMK.HHE. 2023-04-04T12:31:17.74 1.0 undecidable manual S 44 84.0492 90 0.11 22
GU.BHB.HHZ. 2023-04-04T12:31:15.14 0.6 undecidable manual S 176 74.9694 90 -0.06 46
CH.DIX.HHZ. 2023-04-04T12:31:12.32 0.6 undecidable manual S 14 65.1903 90 -0.27 45
CH.MMK.HHE. 2023-04-04T12:31:07.63 0.6 undecidable manual P 44 84.0492 90 0.53 41
GU.BLANC.HHE. 2023-04-04T12:31:06.81 1.0 undecidable manual S 331 42.5241 91 0.28 24
GU.BHB.HHZ. 2023-04-04T12:31:06.21 0.6 undecidable manual P 176 74.9694 90 0.51 42
GU.TRAV.HHZ. 2023-04-04T12:31:05.99 0.6 undecidable manual S 90 42.3243 91 -0.49 45
GU.RSP.HHZ. 2023-04-04T12:31:05.57 0.6 undecidable manual S 173 40.4262 91 -0.41 45
CH.DIX.HHZ. 2023-04-04T12:31:04.20 1.0 negative manual P 14 65.1903 90 0.01 24
IV.MRGE.HHZ. 2023-04-04T12:31:02.82 0.6 undecidable manual S 339 30.747 91 -0.58 43
GU.CIRO.HHZ. 2023-04-04T12:31:02.65 0.6 undecidable manual S 70 30.2475 91 -0.6 44
GU.TRAV.HHZ. 2023-04-04T12:31:01.06 1.0 undecidable manual P 90 42.3243 91 0.39 23
GU.RSP.HHZ. 2023-04-04T12:31:00.52 0.6 undecidable manual P 173 40.4262 91 0.14 49
GU.BLANC.HHE. 2023-04-04T12:31:00.97 0.6 undecidable manual P 331 42.5241 91 0.28 47
GU.CIRO.HHZ. 2023-04-04T12:30:59.08 0.3 undecidable manual P 70 30.2475 91 0.28 72
IV.MRGE.HHZ. 2023-04-04T12:30:58.90 0.1 undecidable manual P 339 30.747 91 0.01 100
GU.LSD.HHZ. 2023-04-04T12:30:57.05 0.6 undecidable manual S 223 7.6812 134 -0.41 47
GU.LSD.HHZ. 2023-04-04T12:30:55.70 0.3 undecidable manual P 223 7.6812 134 0.24 76
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
GU.CIRO.HHN. ML:0.7 0.00002565 0.28 AML other m 2023-04-04T12:31:02.79
GU.CIRO.HHE. ML:0.5 0.000013585 1.12 AML other m 2023-04-04T12:31:03.77
GU.LSD.HHE. ML:1.5 0.00042797964999999994 0.064 AML other m 2023-04-04T12:30:57.07
GU.LSD.HHN. ML:1.4 0.0003508135 0.16 AML other m 2023-04-04T12:30:57.10
IV.MRGE.HHE. ML:0.6 0.000021606794999999997 0.0576 AML other m 2023-04-04T12:31:03.65
IV.MRGE.HHN. ML:0.9 0.000035645564999999994 0.0576 AML other m 2023-04-04T12:31:03.43
GU.RSP.HHE. ML:0.5 0.00001033717825 0.16 AML other m 2023-04-04T12:31:05.99
GU.RSP.HHN. ML:0.2 0.0000067240269 0.16 AML other m 2023-04-04T12:31:06.81
GU.RSP.HNE. ML:1.2 0.000057588085 0.1792 AML other m 2023-04-04T12:31:05.00
GU.RSP.HNN. ML:1.3 0.000065987797 1.4976 AML other m 2023-04-04T12:31:06.81
GU.TRAV.HHE. ML:0.7 0.0000174651965 0.0576 AML other m 2023-04-04T12:31:06.23
GU.TRAV.HHN. ML:0.8 0.000022129455 0.1408 AML other m 2023-04-04T12:31:06.44
CH.DIX.HHE. ML:1.3 0.00003314449 1.0432 AML other m 2023-04-04T12:31:13.21
CH.DIX.HHN. ML:1.4 0.00004573298 1.3504 AML other m 2023-04-04T12:31:13.23
GU.BHB.HNE. ML:1.5 0.000047457744999999994 1.1008 AML other m 2023-04-04T12:31:15.02
GU.BHB.HNN. ML:1.0 0.00001468144 0.3392 AML other m 2023-04-04T12:31:15.87
GU.BHB.HHE. ML:1.0 0.000012661318499999999 1.0368 AML other m 2023-04-04T12:31:15.95
GU.BHB.HHN. ML:1.0 0.000014432376 0.3968 AML other m 2023-04-04T12:31:16.69
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