Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 12-07-2020 and time 21:10:25 (UTC) in region 2 km W Pieve Santo Stefano (AR)

A magnitude ML 0.8 earthquake occured in region: 2 km W Pieve Santo Stefano (AR), on

  • 12-07-2020 21:10:25 (UTC)
  • 12-07-2020 23:10:25 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6620, 12.0220 at 8 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 2 3183 3183
Caprese Michelangelo AR 3 1426 4609
Chiusi della Verna AR 8 2023 6632
Chitignano AR 11 899 7531
Anghiari AR 14 5638 13169
Sansepolcro AR 14 15884 29053
Badia Tedalda AR 14 1087 30140
Castel Focognano AR 15 3149 33289
Verghereto FC 15 1907 35196
Subbiano AR 15 6331 41527
Bibbiena AR 17 12241 53768
Capolona AR 17 5438 59206
San Giustino PG 18 11297 70503
Casteldelci RN 18 407 70910
Citerna PG 20 3531 74441
Talla AR 20 1062 75503

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km NE of Arezzo (99543 inhabitants)
56 Km SW of Cesena (96758 inhabitants)
62 Km SW of Rimini (147750 inhabitants)
63 Km S of Forlì (117913 inhabitants)
63 Km E of Firenze (382808 inhabitants)
67 Km NE of Siena (53903 inhabitants)
68 Km E of Scandicci (50609 inhabitants)
68 Km NW of Perugia (166134 inhabitants)
70 Km S of Faenza (58541 inhabitants)
77 Km W of Pesaro (94582 inhabitants)
78 Km E of Prato (191150 inhabitants)
81 Km SE of Imola (69797 inhabitants)
83 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 2020-07-12
21:10:25		 43.6618 12.0217 8 2020-07-12
21:18:28		 Sala Sismica INGV-Roma 80988901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-12 21:10:25 ± 0.13
Latitude 43.6618 ± 0.0099
Longitude 12.0217 ± 0.0112
Depth (km) 8 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80988901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1215
Semi-minor axis of confidence ellipse (meter) 619
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 213
Circular confidence region, given by single value of horizontal uncertainty (meter) 1220.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 84
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.39
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.47304
Number of stations at which the event was observed 15
Number of stations from which data was used for origin computation 11
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 80988901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-12 21:18:28
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
GU.TRAV.HHZ. 2020-07-12T21:12:01.07 3.0 undecidable manual Sg 20.73 0
IV.VVLD.HHZ. 2020-07-12T21:11:33.60 3.0 undecidable manual Sg 9.83 0
OX.MPRI.HHZ. 2020-07-12T21:11:26.28 3.0 undecidable manual Sn -0.05 0
IV.MNTT.EHZ. 2020-07-12T21:11:07.41 3.0 undecidable manual Sn 2.99 0
IV.LMD.HHZ. 2020-07-12T21:10:42.54 0.3 undecidable manual S 332 52.503 50 0.02 70
IV.PE3.EHZ. 2020-07-12T21:10:38.47 0.6 undecidable manual S 84 38.2284 50 -0.25 46
IV.ATMC.EHZ. 2020-07-12T21:10:35.02 0.6 undecidable manual S 150 27.5502 105 -0.16 48
IV.LMD.HHZ. 2020-07-12T21:10:35.75 0.1 undecidable manual P 332 52.503 50 0.52 84
IV.SFI.EHZ. 2020-07-12T21:10:35.97 0.6 undecidable manual S 333 30.3474 104 -0.17 47
IV.ASQU.HHE. 2020-07-12T21:10:33.57 0.6 undecidable manual S 309 23.8539 108 -0.41 45
IV.CPGN.HNE. 2020-07-12T21:10:33.08 0.1 undecidable manual P 57 28.5492 105 1.89 42
IV.BADI.EHZ. 2020-07-12T21:10:33.85 0.6 undecidable manual S 133 24.5532 107 -0.35 46
IV.PE3.EHZ. 2020-07-12T21:10:32.35 1.0 negative manual P 84 38.2284 50 -0.68 20
IV.PARC.HHZ. 2020-07-12T21:10:31.30 0.6 undecidable manual S 95 17.4714 114 -0.59 43
IV.SFI.EHZ. 2020-07-12T21:10:31.41 1.0 undecidable manual P 333 30.3474 104 -0.14 24
IV.SSP9.EHZ. 2020-07-12T21:10:30.61 0.6 undecidable manual S 138 13.1757 120 0.07 50
IV.BADI.EHZ. 2020-07-12T21:10:30.31 0.1 undecidable manual P 133 24.5532 107 -0.12 96
IT.SNS1.HNE. 2020-07-12T21:10:30.99 0.3 undecidable manual S 138 13.1757 120 0.44 69
IV.ATMC.EHZ. 2020-07-12T21:10:30.86 0.1 undecidable manual P 150 27.5502 105 -0.14 96
IV.ASQU.HHE. 2020-07-12T21:10:29.89 0.1 undecidable manual P 309 23.8539 108 -0.41 91
IV.CRE.HHZ. 2020-07-12T21:10:29.22 0.6 undecidable manual S 230 7.3815 136 0.27 48
IV.SSP9.EHZ. 2020-07-12T21:10:28.41 0.6 negative manual P 138 13.1757 120 0.09 49
IV.PARC.HHZ. 2020-07-12T21:10:28.71 0.1 positive manual P 95 17.4714 114 -0.38 92
IT.SNS1.HNE. 2020-07-12T21:10:28.55 0.1 undecidable manual P 138 13.1757 120 0.23 96
IV.CRE.HHZ. 2020-07-12T21:10:27.48 0.1 positive manual P 230 7.3815 136 0.08 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHN. ML:0.8 0.0001225 0.16 AML other m 2020-07-12T21:10:29.40
IV.CRE.HHE. ML:0.7 0.00009675000000000001 0.82 AML other m 2020-07-12T21:10:29.41
IV.SSP9.EHE. ML:0.6 0.00004602711499999999 1.6512 AML other m 2020-07-12T21:10:31.69
IV.SSP9.EHN. ML:0.6 0.000042850529999999994 1.2544 AML other m 2020-07-12T21:10:31.37
IV.PARC.HHE. ML:0.6 0.000035257905 0.6656 AML other m 2020-07-12T21:10:31.94
IV.PARC.HHN. ML:1.2 0.00014611565000000002 0.128 AML other m 2020-07-12T21:10:31.56
IV.PE3.EHE. ML:1.2 0.000059079124999999997 0.8448 AML other m 2020-07-12T21:10:38.64
IV.PE3.EHN. ML:1.4 0.000092733335 1.1392 AML other m 2020-07-12T21:10:39.62
IV.LMD.HHE. ML:0.6 0.0000092783055 0.9344 AML other m 2020-07-12T21:10:44.20
IV.LMD.HHN. ML:0.6 0.0000091493525 1.4976 AML other m 2020-07-12T21:10:43.07
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