Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.1 on date 12-07-2020 and time 19:27:43 (Italy) in region 1 km W Pieve Santo Stefano (AR)

A magnitude ML 2.1 earthquake occured in region: 1 km W Pieve Santo Stefano (AR), on

  • 12-07-2020 17:27:43 (UTC)
  • 12-07-2020 19:27:43 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6700, 12.0280 at 8 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
Pieve Santo Stefano AR 1 3183 3183
Caprese Michelangelo AR 4 1426 4609
Chiusi della Verna AR 8 2023 6632
Chitignano AR 12 899 7531
Badia Tedalda AR 13 1087 8618
Verghereto FC 14 1907 10525
Sansepolcro AR 14 15884 26409
Anghiari AR 14 5638 32047
Castel Focognano AR 16 3149 35196
Subbiano AR 16 6331 41527
Casteldelci RN 17 407 41934
Bibbiena AR 17 12241 54175
Capolona AR 18 5438 59613
San Giustino PG 18 11297 70910

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Arezzo (99543 inhabitants)
55 Km SW of Cesena (96758 inhabitants)
61 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 E of Scandicci (50609 inhabitants)
69 Km NW of Perugia (166134 inhabitants)
70 Km S of Faenza (58541 inhabitants)
76 Km W of Pesaro (94582 inhabitants)
78 Km E of Prato (191150 inhabitants)
80 Km SE of Imola (69797 inhabitants)
82 Km W of Fano (60888 inhabitants)
84 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
Bulletin
Rev1000 		ML 2.1 2020-07-12
17:27:43		 43.6695 12.0283 9 2020-11-19
12:37:04		 Bollettino Sismico Italiano INGV 83777661
Reviewed
Rev100 		ML 2.2 2020-07-12
17:27:43		 43.6547 12.014 10 2020-07-12
17:34:45		 Sala Sismica INGV-Roma 80985821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-12 17:27:43 ± 0.06
Latitude 43.6695 ± 0.0045
Longitude 12.0283 ± 0.0050
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 83777661

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 590
Semi-minor axis of confidence ellipse (meter) 145
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 217
Circular confidence region, given by single value of horizontal uncertainty (meter) 590.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 87
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.33
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 1.21858
Number of stations at which the event was observed 30
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:2.1

Field Value
Value 2.1
Uncertainty 0.2
Num. used stations 54
Type of magnitude ML
Reference to an origin 83777661
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-10-14 16:09:10

ML:2.2

Field Value
Value 2.2
Uncertainty 0.2
Num. used stations 50
Type of magnitude ML
Reference to an origin 80985821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-12 17:34:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2020-07-12T17:28:07.80 0.1 undecidable manual S 104 75.7686 50 1.19 60
IV.MMO1.EHZ. 2020-07-12T17:28:06.35 0.1 undecidable manual P 129 135.2646 50 0.41 74
IV.SSFR.HHZ. 2020-07-12T17:28:04.90 0.6 undecidable manual S 113 65.8896 50 0.93 35
IV.POPM.HHZ. 2020-07-12T17:28:03.33 3.0 undecidable manual P 0
IV.RIBO.EHZ.01 2020-07-12T17:28:02.52 3.0 positive manual P -0.27 0
IV.FRON.EHZ. 2020-07-12T17:28:02.40 0.3 undecidable manual S 106 58.497 50 0.41 65
IV.MPAG.EHZ. 2020-07-12T17:28:02.40 0.3 undecidable manual S 94 58.8966 50 0.31 66
TV.SF01.EHZ. 2020-07-12T17:28:01.56 0.1 undecidable manual P 202 102.3198 50 0.7 72
IV.ATFO.HHZ. 2020-07-12T17:28:01.30 0.3 undecidable manual S 127 55.1004 50 0.22 68
IV.FDMO.HHZ. 2020-07-12T17:28:01.68 0.1 undecidable manual P 129 110.6004 50 -0.45 77
IV.LMD.HHZ. 2020-07-12T17:28:00.70 0.1 undecidable manual S 331 52.0035 50 0.44 87
TV.SF04.EHZ. 2020-07-12T17:28:00.75 0.1 undecidable manual P 198 97.125 50 0.69 73
IV.EL6.EHZ. 2020-07-12T17:27:59.78 0.1 undecidable manual P 113 94.239 50 0.16 85
IV.NARO.HHZ. 2020-07-12T17:27:58.00 0.3 undecidable manual S 98 44.8218 50 -0.33 67
IV.RUFI.EHZ. 2020-07-12T17:27:58.50 0.3 undecidable manual S 294 45.621 50 -0.04 72
IV.ATVO.HHZ. 2020-07-12T17:27:58.10 0.6 undecidable manual S 136 44.0226 50 -0.04 48
IV.PE3.EHZ. 2020-07-12T17:27:57.00 0.1 undecidable manual S 85 37.629 50 0.57 85
IV.ATMI.HHZ. 2020-07-12T17:27:57.40 0.6 undecidable manual S 153 41.9247 50 -0.16 47
IV.RINC.HHZ. 2020-07-12T17:27:57.40 0.1 undecidable manual S 306 41.4252 50 -0.04 96
IV.ARVD.HHZ. 2020-07-12T17:27:57.06 0.1 undecidable manual P 104 75.7686 50 0.28 86
IV.PIEI.HHZ. 2020-07-12T17:27:57.50 0.3 undecidable manual S 110 43.3233 50 -0.44 66
IV.ATPI.EHZ. 2020-07-12T17:27:56.50 0.3 undecidable manual S 129 38.628 50 -0.19 70
IV.APEC.HHZ. 2020-07-12T17:27:55.40 0.1 undecidable manual S 111 33.744 50 0.01 98
IV.SSFR.HHZ. 2020-07-12T17:27:54.88 0.1 undecidable manual P 113 65.8896 50 -0.37 86
IV.SFI.EHZ. 2020-07-12T17:27:54.00 0.1 undecidable manual S 331 29.8479 106 -0.12 96
IV.FRON.EHZ. 2020-07-12T17:27:53.71 0.1 undecidable manual P 106 58.497 50 -0.4 86
IV.ATFO.HHZ. 2020-07-12T17:27:53.26 0.1 undecidable manual P 127 55.1004 50 -0.33 88
IV.ATMC.EHE. 2020-07-12T17:27:53.31 0.3 undecidable manual S 152 28.0497 107 -0.19 71
IV.MPAG.EHZ. 2020-07-12T17:27:53.86 0.1 positive manual P 94 58.8966 50 -0.3 88
IV.LMD.HHZ. 2020-07-12T17:27:53.01 0.1 undecidable manual P 331 52.0035 50 -0.1 93
IV.RUFI.EHZ. 2020-07-12T17:27:52.00 0.1 negative manual P 294 45.621 50 -0.12 94
IV.ASQU.HHZ. 2020-07-12T17:27:52.10 0.1 undecidable manual S 306 23.754 110 -0.01 100
IV.BADI.EHZ. 2020-07-12T17:27:52.30 0.1 undecidable manual S 136 24.8529 109 -0.14 97
IV.RINC.HHZ. 2020-07-12T17:27:51.34 0.1 undecidable manual P 306 41.4252 50 -0.14 94
IV.ATMI.HHZ. 2020-07-12T17:27:51.47 0.1 undecidable manual P 153 41.9247 50 -0.08 95
IV.PIEI.HHZ. 2020-07-12T17:27:51.25 0.1 undecidable manual P 110 43.3233 50 -0.52 86
IV.ATVO.HHZ. 2020-07-12T17:27:51.57 0.1 undecidable manual P 136 44.0226 50 -0.31 90
IV.NARO.HHZ. 2020-07-12T17:27:51.48 0.1 undecidable manual P 98 44.8218 50 -0.52 86
IV.ATPI.EHZ. 2020-07-12T17:27:50.64 0.1 undecidable manual P 129 38.628 50 -0.41 89
IV.APEC.HHZ. 2020-07-12T17:27:50.15 0.1 undecidable manual P 111 33.744 50 -0.15 95
IV.PE3.EHZ. 2020-07-12T17:27:50.72 0.1 undecidable manual P 85 37.629 50 -0.18 94
IV.SFI.EHZ. 2020-07-12T17:27:49.43 0.1 undecidable manual P 331 29.8479 106 -0.14 96
IV.PARC.HHZ. 2020-07-12T17:27:49.90 0.1 undecidable manual S 98 17.0718 117 -0.05 100
IV.SSP9.EHZ. 2020-07-12T17:27:49.30 0.1 undecidable manual S 142 13.4754 122 0.43 93
IV.CPGN.EHZ. 2020-07-12T17:27:49.68 0.1 positive manual P 58 27.5502 107 0.55 88
IV.ASQU.HHZ. 2020-07-12T17:27:48.40 0.1 positive manual P 306 23.754 110 -0.01 100
IV.BADI.EHZ. 2020-07-12T17:27:48.43 0.1 undecidable manual P 136 24.8529 109 -0.17 96
IV.ATMC.EHE. 2020-07-12T17:27:48.95 0.1 undecidable manual P 152 28.0497 107 -0.26 94
IV.PARC.HHZ. 2020-07-12T17:27:47.21 0.1 positive manual P 98 17.0718 117 0.05 100
IV.CRE.HHZ. 2020-07-12T17:27:47.60 0.1 undecidable manual S 228 8.2806 136 0.13 100
IV.SSP9.EHZ. 2020-07-12T17:27:46.71 0.1 undecidable manual P 142 13.4754 122 0.18 98
IV.CRE.HHZ. 2020-07-12T17:27:45.96 0.1 positive manual P 228 8.2806 136 0.23 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CRE.HHN. ML:0.0 0.0065502585 0.1792 AML other m 2020-07-12T17:27:48.13
IV.CRE.HHE. ML:0.0 0.004386579 0.2432 AML other m 2020-07-12T17:27:47.80
IV.SSP9.EHN. ML:0.0 0.0014637720000000001 0.2816 AML other m 2020-07-12T17:27:49.64
IV.PARC.HHN. ML:0.0 0.0078428295 0.1664 AML other m 2020-07-12T17:27:50.09
IV.PARC.HHE. ML:0.0 0.0020761975000000003 0.256 AML other m 2020-07-12T17:27:50.22
IV.SSP9.EHE. ML:0.0 0.00101714 0.1536 AML other m 2020-07-12T17:27:50.57
IV.ASQU.HHN. ML:0.0 0.00079269395 0.2688 AML other m 2020-07-12T17:27:55.64
IV.ASQU.HHE. ML:0.0 0.0007193688999999999 0.2816 AML other m 2020-07-12T17:27:54.65
IV.APEC.HHN. ML:0.0 0.0009251262 0.2304 AML other m 2020-07-12T17:27:56.49
IV.BADI.EHN. ML:0.0 0.0006009641999999999 0.1792 AML other m 2020-07-12T17:27:57.18
IV.SFI.HNN. ML:0.0 0.0005376997 0.4736 AML other m 2020-07-12T17:27:57.60
IV.SFI.EHN. ML:0.0 0.0005304493999999999 0.4992 AML other m 2020-07-12T17:27:57.61
IV.CPGN.HNN. ML:0.0 0.0008112117 0.448 AML other m 2020-07-12T17:27:57.54
IV.CPGN.EHN. ML:0.0 0.00080135805 0.4096 AML other m 2020-07-12T17:27:57.56
IV.CPGN.EHE. ML:0.0 0.0008667127999999999 0.3712 AML other m 2020-07-12T17:27:57.97
IV.CPGN.HNE. ML:0.0 0.00110828585 0.512 AML other m 2020-07-12T17:27:57.98
IV.ATPI.EHE. ML:0.0 0.0002994344 0.2048 AML other m 2020-07-12T17:27:59.54
IV.PIEI.HHE. ML:0.0 0.00055 0.1 AML other m 2020-07-12T17:27:58.38
IV.PIEI.HHN. ML:0.0 0.00031138585 0.1024 AML other m 2020-07-12T17:27:58.73
IV.BADI.EHE. ML:0.0 0.000804677 0.4352 AML other m 2020-07-12T17:27:58.78
IV.ATMI.HHE. ML:0.0 0.00051971225 0.2048 AML other m 2020-07-12T17:27:58.94
IV.NARO.HHN. ML:0.0 0.00048318535000000003 0.0512 AML other m 2020-07-12T17:27:58.85
IV.APEC.HHE. ML:0.0 0.0012163145500000002 0.3712 AML other m 2020-07-12T17:27:59.58
IV.ATMI.HHN. ML:0.0 0.000532 0.7 AML other m 2020-07-12T17:27:59.62
IV.NARO.HHE. ML:0.0 0.00037284705 0.2176 AML other m 2020-07-12T17:27:59.86
IV.ATPI.EHN. ML:0.0 0.0002885494 0.5248 AML other m 2020-07-12T17:28:05.89
IV.PE3.EHN. ML:0.0 0.002611251 0.3584 AML other m 2020-07-12T17:27:59.81
IV.RINC.HHE. ML:0.0 0.00041528835 0.4608 AML other m 2020-07-12T17:28:00.48
IV.SFI.EHE. ML:0.0 0.00036341075000000003 0.2176 AML other m 2020-07-12T17:27:54.58
IV.SFI.HNE. ML:0.0 0.0003668802 0.2304 AML other m 2020-07-12T17:27:54.69
IV.PE3.EHE. ML:0.0 0.00230792 0.256 AML other m 2020-07-12T17:28:00.30
IV.RUFI.EHE. ML:0.0 0.0003045 0.44 AML other m 2020-07-12T17:28:00.43
IV.LMD.HHE. ML:0.0 0.00031656125 0.32 AML other m 2020-07-12T17:28:01.35
IV.LMD.HHN. ML:0.0 0.00035890925 0.192 AML other m 2020-07-12T17:28:02.65
IV.ATVO.HHN. ML:0.0 0.0002952402 0.384 AML other m 2020-07-12T17:28:03.63
IV.RUFI.EHN. ML:0.0 0.0002042294 0.7168 AML other m 2020-07-12T17:28:02.69
IV.FRON.EHE. ML:0.0 0.00011710563500000001 0.128 AML other m 2020-07-12T17:28:04.13
IV.MPAG.EHN. ML:0.0 0.0002780703 0.1536 AML other m 2020-07-12T17:28:04.81
IV.FRON.EHN. ML:0.0 0.0001896369 0.0768 AML other m 2020-07-12T17:28:04.28
IV.MPAG.EHE. ML:0.0 0.00014027050000000002 0.32 AML other m 2020-07-12T17:28:07.99
IV.ATFO.HHN. ML:0.0 0.00021848270000000004 0.3328 AML other m 2020-07-12T17:28:05.67
IV.ATVO.HHE. ML:0.0 0.00040970785 0.4992 AML other m 2020-07-12T17:28:06.58
IV.SSFR.HNE. ML:0.0 0.0005765 1.12 AML other m 2020-07-12T17:28:06.57
IV.SSFR.HHE. ML:0.0 0.000522 1.12 AML other m 2020-07-12T17:28:06.57
IV.SSFR.HHN. ML:0.0 0.00044411805000000004 0.1792 AML other m 2020-07-12T17:28:06.58
IV.RINC.HHN. ML:0.0 0.00053949275 0.7168 AML other m 2020-07-12T17:28:07.90
IV.SSFR.HNN. ML:0.0 0.00051645765 0.1536 AML other m 2020-07-12T17:28:07.97
IV.ARVD.HHE. ML:0.0 0.000110958275 0.1664 AML other m 2020-07-12T17:28:10.29
IV.ARVD.HHN. ML:0.0 0.000088796635 0.1536 AML other m 2020-07-12T17:28:09.15
IV.ATFO.HHE. ML:0.0 0.00028015460000000006 0.6144 AML other m 2020-07-12T17:28:14.80
IV.FDMO.HHE. ML:0.0 0.00004595 1.12 AML other m 2020-07-12T17:28:25.92
IV.FDMO.HHN. ML:0.0 0.00004407879 0.4224 AML other m 2020-07-12T17:28:20.21
IV.APEC.HNE. ML:0.0 0.0012020255 0.4992 AML other m 2020-07-12T17:27:59.53
IV.APEC.HNN. ML:0.0 0.00080104035 0.32 AML other m 2020-07-12T17:27:59.60
GU.POPM.HHN. ML:0.0 0.00006568184500000001 0.32 AML other m 2020-07-12T17:28:22.75
GU.POPM.HHE. ML:0.0 0.00005554141 0.5888 AML other m 2020-07-12T17:28:23.14
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
Waveforms Seismic signals in miniseed + resp format Download