Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 12-07-2020 and time 21:57:08 (Italy) 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 19:57:08 (UTC)
  • 12-07-2020 21:57:08 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6640, 12.0240 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

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 4 1426 4609
Chiusi della Verna AR 8 2023 6632
Chitignano AR 12 899 7531
Badia Tedalda AR 14 1087 8618
Anghiari AR 14 5638 14256
Sansepolcro AR 14 15884 30140
Verghereto FC 15 1907 32047
Castel Focognano AR 15 3149 35196
Subbiano AR 16 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

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Arezzo (99543 inhabitants)
56 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)
69 Km NW of Perugia (166134 inhabitants)
69 Km E of Scandicci (50609 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
19:57:08		 43.6643 12.0245 11 2020-07-12
20:35:02		 Sala Sismica INGV-Roma 80988351
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-12 19:57:08 ± 0.08
Latitude 43.6643 ± 0.0054
Longitude 12.0245 ± 0.0075
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 80988351

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 751
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 750.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 124
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.06925
Epicentral distance of station farthest from the epicenter (degree) 0.27249
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 2
Type of magnitude ML
Reference to an origin 80988351
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-12 20:35:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SFI.EHZ. 2020-07-12T19:57:19.56 0.3 undecidable manual S 332 30.2475 50 0.19 69
IV.ATMC.EHE. 2020-07-12T19:57:18.54 0.3 undecidable manual S 151 27.6501 50 -0.15 70
IV.BADI.EHE. 2020-07-12T19:57:17.80 0.3 undecidable manual S 134 24.6531 50 -0.08 72
IV.PARC.HHZ. 2020-07-12T19:57:15.50 0.3 undecidable manual S 96 17.2716 122 -0.27 70
IV.SSP9.EHZ. 2020-07-12T19:57:14.79 0.3 undecidable manual S 139 13.1757 129 0.17 72
IT.SNS1.HNZ. 2020-07-12T19:57:14.95 0.3 undecidable manual S 140 13.1757 129 0.33 69
IV.ATMC.EHE. 2020-07-12T19:57:14.83 0.1 undecidable manual P 151 27.6501 50 0.34 90
IV.SFI.EHZ. 2020-07-12T19:57:14.85 0.1 undecidable manual P 332 30.2475 50 -0.03 96
IV.BADI.EHE. 2020-07-12T19:57:13.59 0.3 undecidable manual P 134 24.6531 50 -0.42 67
IV.SSP9.EHZ. 2020-07-12T19:57:12.24 0.1 undecidable manual P 139 13.1757 129 0.11 97
IT.SNS1.HNZ. 2020-07-12T19:57:12.11 1.0 undecidable manual P 140 13.1757 129 -0.03 25
IV.PARC.HHZ. 2020-07-12T19:57:12.79 0.1 undecidable manual P 96 17.2716 122 -0.01 98
IV.CRE.HHZ. 2020-07-12T19:57:12.99 0.3 undecidable manual S 229 7.6812 144 -0.3 71
IV.CRE.HHZ. 2020-07-12T19:57:11.37 0.1 undecidable manual P 229 7.6812 144 0 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHE. ML:0.7 0.00007400000000000001 0.46 AML other m 2020-07-12T19:57:13.08
IV.CRE.HHN. ML:0.8 0.0000847 1.42 AML other m 2020-07-12T19:57:13.18
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