Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 30-03-2024 and time 11:22:32 (UTC) in region 1 km SW Pieve Santo Stefano (AR)

A magnitude ML 0.8 earthquake occured in region: 1 km SW Pieve Santo Stefano (AR), on

  • 30-03-2024 11:22:32 (UTC)
  • 30-03-2024 12:22:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.6630, 12.0320 at 9 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
Pieve Santo Stefano AR 1 3183 3183
Caprese Michelangelo AR 4 1426 4609
Chiusi della Verna AR 9 2023 6632
Chitignano AR 12 899 7531
Badia Tedalda AR 13 1087 8618
Sansepolcro AR 14 15884 24502
Anghiari AR 14 5638 30140
Verghereto FC 15 1907 32047
Castel Focognano AR 16 3149 35196
Subbiano AR 16 6331 41527
San Giustino PG 17 11297 52824
Casteldelci RN 18 407 53231
Bibbiena AR 18 12241 65472
Capolona AR 18 5438 70910
Citerna PG 19 3531 74441

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Arezzo (99543 inhabitants)
55 Km SW of Cesena (96758 inhabitants)
62 Km SW of Rimini (147750 inhabitants)
62 Km S of Forlì (117913 inhabitants)
63 Km E of Firenze (382808 inhabitants)
68 Km NE of Siena (53903 inhabitants)
68 Km NW of Perugia (166134 inhabitants)
69 Km E of Scandicci (50609 inhabitants)
70 Km S of Faenza (58541 inhabitants)
76 Km W of Pesaro (94582 inhabitants)
79 Km E of Prato (191150 inhabitants)
81 Km SE of Imola (69797 inhabitants)
82 Km W of Fano (60888 inhabitants)
85 Km S of Ravenna (159116 inhabitants)
94 Km E of Pistoia (90315 inhabitants)
96 Km NW of Foligno (57155 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 0.8 2024-03-30
11:22:32		 43.6627 12.0318 9 2024-03-30
11:50:13		 Sala Sismica INGV-Roma 126308771
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2024-03-30 11:22:32 ± 0.47
Latitude 43.6627 ± 0.0270
Longitude 12.0318 ± 0.0199
Depth (km) 9 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 126308771

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 3003
Semi-minor axis of confidence ellipse (meter) 1341
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 181
Circular confidence region, given by single value of horizontal uncertainty (meter) 3000.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 222
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.54
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.40020
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 126308771
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2024-03-30 11:50:13
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2024-03-30T11:24:32.14 3.0 undecidable manual Sg 10.5 0
IV.EPZF.HHZ. 2024-03-30T11:24:18.53 3.0 undecidable manual Pg 15.58 0
IV.MRVN.HHZ. 2024-03-30T11:24:15.62 3.0 undecidable manual Sn -3.56 0
IX.COL3.HHZ.02 2024-03-30T11:24:13.90 3.0 undecidable manual Sn -0.82 0
IV.IFIL.HHZ. 2024-03-30T11:24:12.00 3.0 negative manual Pg 19.629999 0
IV.SACR.HHZ. 2024-03-30T11:24:05.35 3.0 undecidable manual Sg 11.37 0
IV.SPS2.HHZ. 2024-03-30T11:24:02.68 3.0 positive manual Pg 10.46 0
IV.MMGO.HHZ. 2024-03-30T11:23:59.93 3.0 positive manual Pn -0.68 0
IV.MFNL.HHZ. 2024-03-30T11:23:55.20 3.0 negative manual Pn -3.59 0
IV.SELL.HHZ. 2024-03-30T11:23:53.41 3.0 negative manual Pn -4.05 0
IV.CET2.HHZ. 2024-03-30T11:23:45.16 3.0 undecidable manual Pn -2.05 0
IV.RNI2.HHZ. 2024-03-30T11:23:44.65 3.0 undecidable manual Sg 2.86 0
IV.BAG8.EHZ. 2024-03-30T11:23:41.97 3.0 undecidable manual Sn -0.87 0
IV.PTCC.HHZ. 2024-03-30T11:23:27.33 3.0 undecidable manual Pg 8.7 0
GU.CANO.HHZ. 2024-03-30T11:23:26.28 3.0 undecidable manual Pg 8.81 0
IV.CQUE.HHZ. 2024-03-30T11:23:24.85 3.0 undecidable manual Pn 3.43 0
IV.CAMP.HHZ. 2024-03-30T11:23:15.94 3.0 undecidable manual Sn -1.55 0
IV.MNTT.EHZ. 2024-03-30T11:23:12.18 3.0 undecidable manual Sn 0.03 0
IV.IMOL.HNZ. 2024-03-30T11:22:50.72 3.0 undecidable manual P 1.57 0
IV.MCIV.CHZ. 2024-03-30T11:22:50.40 3.0 undecidable manual P -0.26 0
IV.ARCI.HHZ. 2024-03-30T11:22:49.93 3.0 positive manual P -0.67 0
IV.NARO.HHZ. 2024-03-30T11:22:47.16 0.3 undecidable manual S 97 44.4222 50 -0.58 64
IV.ATMC.EHZ. 2024-03-30T11:22:42.57 0.6 undecidable manual S 152 27.2505 108 -0.29 47
IV.NARO.HHZ. 2024-03-30T11:22:41.19 1.0 undecidable manual P 97 44.4222 50 -0.29 23
IV.CAFI.HHZ. 2024-03-30T11:22:41.18 0.1 undecidable manual P 188 37.3293 50 0.79 79
IV.BADI.EHZ. 2024-03-30T11:22:41.35 0.6 undecidable manual S 135 24.0537 110 -0.48 46
IV.PARC.HHZ. 2024-03-30T11:22:40.32 0.6 undecidable manual S 95 16.6722 118 0.84 40
IV.ATMC.EHZ. 2024-03-30T11:22:38.68 0.1 undecidable manual P 152 27.2505 108 0.02 100
IV.BADI.EHZ. 2024-03-30T11:22:38.47 0.6 negative manual P 135 24.0537 110 0.4 46
IV.PARC.HHZ. 2024-03-30T11:22:37.45 1.0 undecidable manual P 95 16.6722 118 0.74 21
IV.CRE.HHZ. 2024-03-30T11:22:37.54 0.6 undecidable manual S 233 8.0808 138 0.46 47
IV.CRE.HHZ. 2024-03-30T11:22:34.40 0.1 undecidable manual P 233 8.0808 138 -0.93 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHN. ML:1.2 0.000142 0.28 AML other m 2024-03-30T11:22:39.71
IV.PARC.HHE. ML:1.0 0.00007780000000000001 0.16 AML other m 2024-03-30T11:22:39.87
IV.BADI.EHE. ML:0.5 0.000017988455 0.12 AML other m 2024-03-30T11:22:41.87
IV.BADI.EHN. ML:0.5 0.000022469685 0.12 AML other m 2024-03-30T11:22:42.36
IV.NARO.HHE. ML:0.9 0.000023654626 0.96 AML other m 2024-03-30T11:22:42.83
IV.NARO.HHN. ML:0.7 0.000016226673499999996 0.56 AML other m 2024-03-30T11:22:43.74
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