Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.9 on date 03-04-2023 and time 19:10:19 (Italy) in region 5 km S Badia Tedalda (AR)

A magnitude ML 0.9 earthquake occured in region: 5 km S Badia Tedalda (AR), on

  • 03-04-2023 17:10:19 (UTC)
  • 03-04-2023 19:10:19 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6640, 12.1840 at 7 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
Badia Tedalda AR 5 1087 1087
Borgo Pace PU 9 606 1693
Sestino AR 10 1355 3048
Sansepolcro AR 11 15884 18932
Pieve Santo Stefano AR 11 3183 22115
Mercatello sul Metauro PU 12 1378 23493
San Giustino PG 13 11297 34790
Casteldelci RN 15 407 35197
Caprese Michelangelo AR 16 1426 36623
Belforte all'Isauro PU 17 769 37392
Anghiari AR 17 5638 43030
Carpegna PU 18 1674 44704
Pennabilli RN 19 2869 47573
Sant'Angelo in Vado PU 19 4133 51706
Citerna PG 19 3531 55237
Frontino PU 19 293 55530
Piandimeleto PU 20 2167 57697

Municipalities with at least 50000 inhabitants

An earthquake occurred to
33 Km NE of Arezzo (99543 inhabitants)
53 Km S of Cesena (96758 inhabitants)
54 Km SW of Rimini (147750 inhabitants)
63 Km S of Forlì (117913 inhabitants)
64 Km N of Perugia (166134 inhabitants)
65 Km W of Pesaro (94582 inhabitants)
70 Km W of Fano (60888 inhabitants)
73 Km SE of Faenza (58541 inhabitants)
76 Km E of Firenze (382808 inhabitants)
79 Km E of Siena (53903 inhabitants)
81 Km E of Scandicci (50609 inhabitants)
84 Km S of Ravenna (159116 inhabitants)
85 Km SE of Imola (69797 inhabitants)
89 Km NW of Foligno (57155 inhabitants)
91 Km E of Prato (191150 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 0.9 2023-04-03
17:10:19		 43.6637 12.1845 7 2024-03-01
17:18:19		 Bollettino Sismico Italiano INGV 124544951
Reviewed
Rev100 		ML 1.0 2023-04-03
17:10:18		 43.6643 12.187 9 2023-04-03
17:21:12		 Sala Sismica INGV-Roma 116031711
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-04-03 17:10:19 ± 0.12
Latitude 43.6637 ± 0.0054
Longitude 12.1845 ± 0.0050
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 124544951

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 611
Semi-minor axis of confidence ellipse (meter) 245
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 184
Circular confidence region, given by single value of horizontal uncertainty (meter) 610.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 205
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.48923
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 8
Magnitudes information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 116031711
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-04-03 17:21:12

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 124544951
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2024-01-08 16:57:03
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMDO.HHZ. 2023-04-03T17:12:11.28 3.0 undecidable manual Pg 21.83 0
IV.ECTS.HHZ. 2023-04-03T17:12:09.35 3.0 positive manual Pg 21.68 0
IV.MCRV.HHZ. 2023-04-03T17:11:58.42 3.0 undecidable manual Sn 1.41 0
IV.ACATE.EHZ. 2023-04-03T17:11:56.00 3.0 positive manual Pn -0.95 0
1J.FX14.HHZ.00 2023-04-03T17:11:56.53 3.0 negative manual Pn 6.22 0
IV.MRB1.HNZ. 2023-04-03T17:11:55.38 3.0 undecidable manual Sn 7.27 0
IV.CAFE.HHZ. 2023-04-03T17:11:50.89 3.0 undecidable manual Sn -2.06 0
IV.MOCO.HHZ. 2023-04-03T17:11:47.49 3.0 undecidable manual Sn 1.93 0
OT.CGL1.HHZ. 2023-04-03T17:11:43.59 3.0 undecidable manual Pg 13.25 0
IV.MTMR.HNZ. 2023-04-03T17:11:14.05 3.0 undecidable manual Pn 4.28 0
IV.MCRV.HHZ. 2023-04-03T17:11:12.58 3.0 undecidable manual Pn 0.29 0
IT.GLNS.HNZ. 2023-04-03T17:11:02.42 3.0 undecidable manual Pn 3.68 0
IV.POFI.HHZ. 2023-04-03T17:10:54.24 3.0 undecidable manual Pn 0.81 0
IV.CSP1.EHZ. 2023-04-03T17:10:50.17 3.0 undecidable manual S -0.44 0
IV.CESI.HHZ. 2023-04-03T17:10:48.88 3.0 undecidable manual S -0.02 0
IV.SSFR.HHZ. 2023-04-03T17:10:37.47 0.6 undecidable manual S 117 54.3012 50 0.47 43
IV.IMOL.HNZ. 2023-04-03T17:10:35.99 3.0 undecidable manual S 0.19 0
IV.NARO.HHZ. 2023-04-03T17:10:30.51 0.6 undecidable manual S 100 32.3454 102 -0.12 48
IV.SSFR.HHZ. 2023-04-03T17:10:29.35 0.3 undecidable manual P 117 54.3012 50 -0.1 70
IV.ATPI.EHE. 2023-04-03T17:10:29.46 0.6 undecidable manual S 143 29.4483 103 -0.17 48
IV.ATMC.EHE. 2023-04-03T17:10:27.56 0.6 undecidable manual S 178 24.0537 106 -0.28 47
IV.CRE.HHE. 2023-04-03T17:10:26.13 0.6 undecidable manual S 255 19.3695 110 -0.16 49
IV.BADI.EHZ. 2023-04-03T17:10:25.98 0.6 undecidable manual S 164 17.7711 111 0.21 48
IV.NARO.HHZ. 2023-04-03T17:10:25.55 1.0 undecidable manual P 100 32.3454 102 -0.22 24
IV.ATPI.EHE. 2023-04-03T17:10:24.98 0.1 undecidable manual P 143 29.4483 103 -0.22 95
IV.BRSN.HNZ. 2023-04-03T17:10:23.21 3.0 undecidable manual P -0.8 0
IV.BADI.EHZ. 2023-04-03T17:10:23.12 0.3 undecidable manual P 164 17.7711 111 0.15 73
IV.ATMC.EHE. 2023-04-03T17:10:23.99 0.1 undecidable manual P 178 24.0537 106 -0.18 96
IV.CRE.HHE. 2023-04-03T17:10:23.21 0.1 undecidable manual P 255 19.3695 110 -0.06 100
IV.SSP9.EHZ. 2023-04-03T17:10:23.92 0.6 undecidable manual S 203 10.878 123 0.3 48
IV.PARC.HHZ. 2023-04-03T17:10:22.04 0.6 undecidable manual S 111 4.6953 146 -0.02 51
IV.SSP9.EHZ. 2023-04-03T17:10:21.93 0.1 positive manual P 203 10.878 123 0.2 98
IV.PARC.HHZ. 2023-04-03T17:10:20.99 0.1 undecidable manual P 111 4.6953 146 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSP9.EHE. ML:0.7 0.00006959155999999999 0.192 AML other m 2023-04-03T17:10:24.02
IV.SSP9.EHN. ML:0.8 0.00009588548 0.5248 AML other m 2023-04-03T17:10:24.19
IV.BADI.EHE. ML:1.1 0.00010855445 0.0768 AML other m 2023-04-03T17:10:26.55
IV.BADI.EHN. ML:1.1 0.000109271565 0.1664 AML other m 2023-04-03T17:10:26.66
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