Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.4 on date 23-04-2020 and time 16:06:27 (Italy) in region 4 km SE Badia Tedalda (AR)

A magnitude ML 1.4 earthquake occured in region: 4 km SE Badia Tedalda (AR), on

  • 23-04-2020 14:06:27 (UTC)
  • 23-04-2020 16:06:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.6740, 12.2030 at 10 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 4 1087 1087
Borgo Pace PU 8 606 1693
Sestino AR 9 1355 3048
Mercatello sul Metauro PU 11 1378 4426
Sansepolcro AR 12 15884 20310
Pieve Santo Stefano AR 13 3183 23493
Casteldelci RN 14 407 23900
San Giustino PG 14 11297 35197
Belforte all'Isauro PU 15 769 35966
Carpegna PU 16 1674 37640
Pennabilli RN 17 2869 40509
Sant'Angelo in Vado PU 17 4133 44642
Frontino PU 17 293 44935
Caprese Michelangelo AR 18 1426 46361
Piandimeleto PU 18 2167 48528
Anghiari AR 19 5638 54166

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km NE of Arezzo (99543 inhabitants)
52 Km S of Cesena (96758 inhabitants)
52 Km SW of Rimini (147750 inhabitants)
63 Km S of Forlì (117913 inhabitants)
63 Km W of Pesaro (94582 inhabitants)
65 Km N of Perugia (166134 inhabitants)
68 Km W of Fano (60888 inhabitants)
73 Km SE of Faenza (58541 inhabitants)
77 Km E of Firenze (382808 inhabitants)
81 Km E of Siena (53903 inhabitants)
83 Km E of Scandicci (50609 inhabitants)
83 Km S of Ravenna (159116 inhabitants)
85 Km SE of Imola (69797 inhabitants)
90 Km NW of Foligno (57155 inhabitants)
92 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 1.4 2020-04-23
14:06:27		 43.6738 12.2027 10 2020-07-18
21:08:42		 Bollettino Sismico Italiano INGV 80989121
Reviewed
Rev100 		ML 1.4 2020-04-23
14:06:27		 43.6738 12.2055 10 2020-04-23
14:13:44		 Sala Sismica INGV-Roma 78503931
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-23 14:06:27 ± 0.07
Latitude 43.6738 ± 0.0045
Longitude 12.2027 ± 0.0050
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80989121

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 552
Semi-minor axis of confidence ellipse (meter) 375
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 212
Circular confidence region, given by single value of horizontal uncertainty (meter) 550.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 34
Number of defining phases 31
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.56298
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 16
Magnitudes information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 80989121
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-12 21:58:36

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 78503931
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-23 14:13:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.NDIM.HNZ. 2020-04-23T14:07:19.15 3.0 undecidable manual S 3.07 0
IV.MTCE.HHZ. 2020-04-23T14:06:59.88 3.0 undecidable manual Pg 2.81 0
IV.ARRO.EHZ. 2020-04-23T14:06:50.98 3.0 undecidable manual P 1.15 0
IV.ARVD.HHZ. 2020-04-23T14:06:48.14 0.6 undecidable manual S 108 62.493 50 0.99 34
IV.SSFR.HHZ. 2020-04-23T14:06:44.92 0.3 undecidable manual S 119 53.502 50 0.17 68
IV.ATFO.HHZ. 2020-04-23T14:06:42.98 0.6 undecidable manual S 139 45.2214 50 0.45 44
IV.MPAG.EHZ. 2020-04-23T14:06:42.46 0.6 undecidable manual S 96 44.9217 50 -0.01 48
IV.FRON.EHZ. 2020-04-23T14:06:42.71 0.6 undecidable manual S 112 45.4212 50 0.11 47
IV.ATVO.HHZ. 2020-04-23T14:06:40.72 0.6 undecidable manual S 153 36.3414 50 0.56 43
IV.SFI.EHZ. 2020-04-23T14:06:40.72 0.6 undecidable manual S 312 38.3283 50 0.03 48
IV.ASQU.HHZ. 2020-04-23T14:06:40.26 0.6 undecidable manual S 292 35.8419 50 0.23 46
IV.ARVD.HHZ. 2020-04-23T14:06:39.15 0.3 undecidable manual P 108 62.493 50 0.17 67
IV.PIEI.HHZ. 2020-04-23T14:06:38.31 0.3 undecidable manual S 120 30.747 50 -0.38 68
IV.LMD.HHZ. 2020-04-23T14:06:38.63 0.3 undecidable manual P 319 59.7957 50 0.07 69
IV.SSFR.HHZ. 2020-04-23T14:06:37.44 0.3 undecidable manual P 119 53.502 50 -0.16 68
IV.CRE.HHZ. 2020-04-23T14:06:36.13 0.6 undecidable manual S 253 21.0678 116 0.19 48
IV.APEC.HHZ. 2020-04-23T14:06:36.29 0.3 undecidable manual S 126 21.6672 115 0.17 72
IV.ATFO.HHZ. 2020-04-23T14:06:36.13 0.3 undecidable manual P 139 45.2214 50 -0.19 69
IV.FRON.EHZ. 2020-04-23T14:06:35.99 0.3 undecidable manual P 112 45.4212 50 -0.37 66
IV.ATVO.HHZ. 2020-04-23T14:06:35.00 0.1 undecidable manual P 153 36.3414 50 0.06 96
IV.CPGN.EHZ. 2020-04-23T14:06:35.38 0.3 undecidable manual S 34 16.9719 121 0.68 63
IV.SFI.EHZ. 2020-04-23T14:06:35.16 0.3 undecidable manual P 312 38.3283 50 -0.09 71
IV.BADI.EHZ. 2020-04-23T14:06:35.29 0.3 undecidable manual S 170 18.5703 119 0.13 73
IV.MPAG.EHZ. 2020-04-23T14:06:35.90 0.3 undecidable manual P 96 44.9217 50 -0.38 66
IV.ASQU.HHZ. 2020-04-23T14:06:34.59 0.1 undecidable manual P 292 35.8419 50 -0.28 92
IV.SSP9.EHZ. 2020-04-23T14:06:33.81 0.3 undecidable manual S 207 12.4764 129 0.39 70
IV.PIEI.HHZ. 2020-04-23T14:06:33.59 0.1 undecidable manual P 120 30.747 50 -0.5 88
IV.BADI.EHZ. 2020-04-23T14:06:32.07 0.1 positive manual P 170 18.5703 119 0.01 100
IV.CRE.HHZ. 2020-04-23T14:06:32.43 0.1 undecidable manual P 253 21.0678 116 -0.08 98
IV.APEC.HHZ. 2020-04-23T14:06:32.52 0.3 undecidable manual P 126 21.6672 115 -0.09 73
IV.SSP9.EHZ. 2020-04-23T14:06:31.21 0.1 undecidable manual P 207 12.4764 129 0.16 98
IV.CPGN.EHZ. 2020-04-23T14:06:31.98 0.1 undecidable manual P 34 16.9719 121 0.19 97
IV.PARC.HHZ. 2020-04-23T14:06:30.92 0.3 undecidable manual S 134 3.996 159 -0.71 64
IV.PARC.HHZ. 2020-04-23T14:06:29.73 0.1 undecidable manual P 134 3.996 159 -0.29 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PARC.HHE. ML:2.0 0.001655 0.16 AML other m 2020-04-23T14:06:31.12
IV.SSP9.EHN. ML:1.5 0.000313 1.5 AML other m 2020-04-23T14:06:34.97
IV.SSP9.EHE. ML:1.3 0.00021164999999999997 1.14 AML other m 2020-04-23T14:06:34.33
IV.BADI.EHE. ML:1.6 0.00030649999999999997 0.2 AML other m 2020-04-23T14:06:35.55
IV.BADI.EHN. ML:1.6 0.00031 0.1 AML other m 2020-04-23T14:06:35.45
IV.CPGN.HNE. ML:1.8 0.0006015 1.16 AML other m 2020-04-23T14:06:36.61
IV.CPGN.HNN. ML:1.8 0.0005655 0.82 AML other m 2020-04-23T14:06:36.44
IV.CPGN.EHE. ML:1.9 0.0006799999999999999 0.46 AML other m 2020-04-23T14:06:36.45
IV.CPGN.EHN. ML:1.8 0.000535 0.3 AML other m 2020-04-23T14:06:36.60
IV.APEC.HHE. ML:1.4 0.00017299999999999998 1.5 AML other m 2020-04-23T14:06:36.81
IV.APEC.HHN. ML:1.4 0.0001545 1.16 AML other m 2020-04-23T14:06:37.02
IV.PIEI.HHE. ML:1.9 0.000391 0.08 AML other m 2020-04-23T14:06:38.88
IV.CRE.HHN. ML:1.3 0.000136 0.2 AML other m 2020-04-23T14:06:39.03
IV.CRE.HHE. ML:1.1 0.00008335 0.6 AML other m 2020-04-23T14:06:39.20
IV.PIEI.HHN. ML:1.6 0.000169 1.18 AML other m 2020-04-23T14:06:39.26
IV.ASQU.HHN. ML:1.3 0.00007555000000000001 0.9 AML other m 2020-04-23T14:06:40.48
IV.SFI.EHE. ML:1.2 0.0000577 0.14 AML other m 2020-04-23T14:06:41.13
IV.ASQU.HHE. ML:1.2 0.00006355 0.62 AML other m 2020-04-23T14:06:41.74
IV.SFI.EHN. ML:1.0 0.000036 0.68 AML other m 2020-04-23T14:06:42.44
IV.ATVO.HHE. ML:1.2 0.00006709999999999999 0.66 AML other m 2020-04-23T14:06:43.25
IV.ATFO.HHE. ML:1.2 0.00004365 0.42 AML other m 2020-04-23T14:06:43.15
IV.FRON.EHN. ML:1.5 0.00009925 0.64 AML other m 2020-04-23T14:06:43.60
IV.FRON.EHE. ML:1.3 0.00006264999999999999 1.14 AML other m 2020-04-23T14:06:43.67
IV.MPAG.EHE. ML:1.2 0.00005035 1.04 AML other m 2020-04-23T14:06:43.41
IV.MPAG.EHN. ML:1.3 0.00005285000000000001 0.66 AML other m 2020-04-23T14:06:44.14
IV.SSFR.HNN. ML:2.1 0.00028500000000000004 0.14 AML other m 2020-04-23T14:06:45.98
IV.SSFR.HHN. ML:1.9 0.00020250000000000002 1.36 AML other m 2020-04-23T14:06:46.98
IV.ATVO.HHN. ML:1.0 0.00004205 0.44 AML other m 2020-04-23T14:06:46.35
IV.ATFO.HHN. ML:1.1 0.00003265 0.9 AML other m 2020-04-23T14:06:46.48
IV.SSFR.HHE. ML:2.0 0.0002295 0.16 AML other m 2020-04-23T14:06:46.57
IV.SSFR.HNE. ML:2.1 0.00029749999999999997 0.52 AML other m 2020-04-23T14:06:46.84
IV.LMD.HHE. ML:1.2 0.00003695 1.78 AML other m 2020-04-23T14:06:48.89
IV.LMD.HHN. ML:1.2 0.00003515 0.5 AML other m 2020-04-23T14:06:48.74
IV.ARVD.HHE. ML:1.3 0.000034450000000000004 0.46 AML other m 2020-04-23T14:06:49.58
IV.ARVD.HHN. ML:1.3 0.0000407 1.84 AML other m 2020-04-23T14:06:49.94
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