Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 27-12-2021 and time 04:56:55 (UTC) in region 4 km NW Apecchio (PU)

A magnitude ML 2.0 earthquake occured in region: 4 km NW Apecchio (PU), on

  • 27-12-2021 04:56:55 (UTC)
  • 27-12-2021 05:56:55 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.5790, 12.3840 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
Apecchio PU 4 1882 1882
Mercatello sul Metauro PU 9 1378 3260
Sant'Angelo in Vado PU 10 4133 7393
Piobbico PU 10 2029 9422
Borgo Pace PU 11 606 10028
Urbania PU 15 7099 17127
Belforte all'Isauro PU 16 769 17896
Pietralunga PG 16 2111 20007
Peglio PU 16 696 20703
Sestino AR 16 1355 22058
Piandimeleto PU 17 2167 24225
San Giustino PG 17 11297 35522
Lunano PU 18 1527 37049
Città di Castello PG 18 39913 76962
Sansepolcro AR 20 15884 92846

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Arezzo (99543 inhabitants)
52 Km N of Perugia (166134 inhabitants)
56 Km S of Rimini (147750 inhabitants)
56 Km SW of Pesaro (94582 inhabitants)
59 Km SW of Fano (60888 inhabitants)
63 Km S of Cesena (96758 inhabitants)
74 Km NW of Foligno (57155 inhabitants)
77 Km SE of Forlì (117913 inhabitants)
88 Km SE of Faenza (58541 inhabitants)
90 Km E of Siena (53903 inhabitants)
92 Km W of Ancona (100861 inhabitants)
93 Km E of Firenze (382808 inhabitants)
95 Km S of Ravenna (159116 inhabitants)
99 Km E of Scandicci (50609 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 2.0 2021-12-27
04:56:55		 43.5788 12.3837 10 2022-03-30
13:04:31		 Bollettino Sismico Italiano INGV 99852821
Reviewed
Rev100 		ML 1.9 2021-12-27
04:56:55		 43.5712 12.3837 9 2021-12-27
05:01:16		 Sala Sismica INGV-Roma 99041141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-27 04:56:55 ± 0.04
Latitude 43.5788 ± 0.0027
Longitude 12.3837 ± 0.0025
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 99852821

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 277
Semi-minor axis of confidence ellipse (meter) 193
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 204
Circular confidence region, given by single value of horizontal uncertainty (meter) 280.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 38
Number of associated phases, regardless of their use for origin computation 68
Number of defining phases 68
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.03327
Epicentral distance of station farthest from the epicenter (degree) 0.98116
Number of stations at which the event was observed 45
Number of stations from which data was used for origin computation 45
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 72
Type of magnitude ML
Reference to an origin 99852821
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-31 17:49:53

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 68
Type of magnitude ML
Reference to an origin 99041141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-27 05:01:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-12-27T04:57:14.73 1.0 undecidable manual P 127 108.9132 50 1 15
IV.NRCA.HHZ. 2021-12-27T04:57:12.96 1.0 undecidable manual P 144 101.6205 50 0.35 20
IV.CSP1.EHZ. 2021-12-27T04:57:10.48 0.6 undecidable manual P 129 85.4478 50 0.35 40
IV.ARVD.HHZ. 2021-12-27T04:57:10.74 0.6 undecidable manual S 101 45.7209 50 0.41 43
IV.CAFI.HHZ. 2021-12-27T04:57:10.43 0.6 undecidable manual S 231 43.5231 50 0.69 39
IV.FOSV.EHZ. 2021-12-27T04:57:10.32 0.6 undecidable manual S 136 43.8228 50 0.52 42
IV.MGAB.HHZ. 2021-12-27T04:57:09.05 0.3 positive manual P 197 77.0673 50 0.22 63
IV.FDMO.HHZ. 2021-12-27T04:57:09.90 0.3 undecidable manual P 136 82.7505 50 0.19 63
IV.MURB.HHZ. 2021-12-27T04:57:08.38 1.0 undecidable manual S 162 36.8298 50 0.43 22
IV.CESI.HHZ. 2021-12-27T04:57:08.92 0.6 undecidable manual P 146 76.368 50 0.2 42
IV.RUFI.EHZ. 2021-12-27T04:57:08.55 1.0 undecidable manual P 293 75.7686 50 -0.08 22
IV.CRE.HHZ. 2021-12-27T04:57:07.09 0.6 undecidable manual S 277 34.9428 50 -0.36 44
IV.SSFR.HNZ. 2021-12-27T04:57:07.52 0.6 undecidable manual S 116 35.742 50 -0.14 46
IV.CING.HHZ. 2021-12-27T04:57:07.77 1.0 undecidable manual P 109 69.1752 50 0.16 22
IV.ASSB.HHZ. 2021-12-27T04:57:06.83 0.3 undecidable manual P 159 63.492 50 0.09 67
IV.MPAG.EHZ. 2021-12-27T04:57:06.03 0.6 undecidable manual S 79 30.747 50 -0.28 45
IV.EL6.EHZ. 2021-12-27T04:57:06.87 0.3 undecidable manual P 115 64.0914 50 0.04 67
IV.SNTG.HHZ. 2021-12-27T04:57:05.84 1.0 undecidable manual P 128 57.498 50 0.03 23
IV.CPGN.EHZ. 2021-12-27T04:57:05.86 0.6 undecidable manual S 348 25.1526 111 1.13 33
IV.COR1.EHZ. 2021-12-27T04:57:05.12 0.6 undecidable manual P 83 49.9167 50 0.48 42
IV.ATSC.EHE. 2021-12-27T04:57:05.97 0.6 undecidable manual S 125 29.8479 50 -0.1 47
IV.SFI.EHZ. 2021-12-27T04:57:05.44 0.3 undecidable manual P 310 56.1993 50 -0.17 66
IV.ATFO.HHZ. 2021-12-27T04:57:05.44 0.6 undecidable manual S 147 27.9498 50 -0.15 47
IV.ATMI.HHZ. 2021-12-27T04:57:05.74 1.0 undecidable manual S 199 28.749 50 -0.03 24
IV.PESA.HHZ. 2021-12-27T04:57:05.56 0.3 undecidable manual P 42 54.3012 50 0.23 66
IV.FRON.EHZ. 2021-12-27T04:57:05.30 0.6 undecidable manual S 104 28.3494 50 -0.38 45
IV.ATLO.EHE. 2021-12-27T04:57:05.79 0.6 undecidable manual S 176 29.3484 50 -0.15 47
IV.TB02.DHZ.01 2021-12-27T04:57:04.24 0.6 undecidable manual S 175 23.2545 113 0.13 47
IV.CRTC.HHZ. 2021-12-27T04:57:04.06 0.3 undecidable manual P 62 45.2214 50 0.13 68
IV.RSM2.HHE. 2021-12-27T04:57:04.00 1.0 undecidable manual P 7 40.1265 50 0.87 18
IV.ASQU.HHZ. 2021-12-27T04:57:04.96 0.3 undecidable manual P 297 53.4021 50 -0.23 66
IV.ATCC.EHZ. 2021-12-27T04:57:04.77 0.3 undecidable manual P 155 48.3183 50 0.37 65
IV.CAFI.HHZ. 2021-12-27T04:57:03.66 0.1 positive manual P 231 43.5231 50 0 94
IV.SSP9.EHZ. 2021-12-27T04:57:03.34 0.3 undecidable manual S 268 20.2686 116 0.16 71
IT.SNS1.HNZ. 2021-12-27T04:57:03.39 0.6 undecidable manual S 268 20.2686 116 0.21 47
IV.FOSV.EHZ. 2021-12-27T04:57:03.66 0.1 undecidable manual P 136 43.8228 50 -0.04 93
IV.ARVD.HHZ. 2021-12-27T04:57:03.90 0.3 undecidable manual P 101 45.7209 50 -0.1 69
IV.TB03.DHZ.01 2021-12-27T04:57:03.19 0.6 undecidable manual S 174 19.869 116 0.15 47
IV.ATMC.EHE. 2021-12-27T04:57:03.37 0.6 undecidable manual S 226 21.2676 115 -0.11 48
IV.CRE.HHZ. 2021-12-27T04:57:02.09 0.1 positive manual P 277 34.9428 50 -0.25 90
IV.SSFR.HNZ. 2021-12-27T04:57:02.24 0.3 undecidable manual P 116 35.742 50 -0.22 68
IV.MURB.HHZ. 2021-12-27T04:57:02.68 0.1 positive manual P 162 36.8298 50 0.05 94
IV.ATVA.EHE. 2021-12-27T04:57:01.95 0.6 undecidable manual P 193 34.2435 50 -0.28 45
IV.ATPC.HHE. 2021-12-27T04:57:01.10 0.3 undecidable manual S 152 12.3765 128 0.25 70
IV.CPGN.EHZ. 2021-12-27T04:57:01.11 0.1 positive manual P 348 25.1526 111 0.33 90
IV.BADI.EHZ. 2021-12-27T04:57:01.10 0.3 undecidable manual S 236 13.5753 126 -0.08 73
IV.ATMI.HHZ. 2021-12-27T04:57:01.24 0.1 positive manual P 199 28.749 50 -0.14 94
IV.ATSC.EHE. 2021-12-27T04:57:01.32 0.6 undecidable manual P 125 29.8479 50 -0.23 46
IV.ATLO.EHE. 2021-12-27T04:57:01.33 0.1 positive manual P 176 29.3484 50 -0.14 93
IV.MPAG.EHZ. 2021-12-27T04:57:01.40 0.1 positive manual P 79 30.747 50 -0.28 90
IV.ATFO.HHZ. 2021-12-27T04:57:01.09 0.3 undecidable manual P 147 27.9498 50 -0.18 70
IV.PIEI.HHZ. 2021-12-27T04:57:00.70 0.3 undecidable manual S 111 13.0758 127 -0.34 69
IV.TB02.DHZ.01 2021-12-27T04:57:00.42 0.1 positive manual P 175 23.2545 113 0 97
IV.FRON.EHZ. 2021-12-27T04:57:00.94 0.1 positive manual P 104 28.3494 50 -0.38 89
IV.PARC.HHZ. 2021-12-27T04:57:00.90 0.6 undecidable manual S 304 13.9749 125 -0.39 46
IV.TB03.DHZ.01 2021-12-27T04:56:59.82 0.1 positive manual P 174 19.869 116 0.03 97
IV.SSP9.EHZ. 2021-12-27T04:56:59.77 0.1 positive manual P 268 20.2686 116 -0.11 95
IV.CDCA.HNZ. 2021-12-27T04:56:59.55 0.3 undecidable manual P 222 17.9709 118 0.08 72
IV.PE3.EHZ. 2021-12-27T04:56:59.09 0.1 positive manual P 35 15.873 122 0 98
IV.ATMC.EHE. 2021-12-27T04:56:59.93 0.1 positive manual P 226 21.2676 115 -0.12 95
IT.SNS1.HNZ. 2021-12-27T04:56:59.84 0.6 undecidable manual P 268 20.2686 116 -0.04 48
IV.PIEI.HHZ. 2021-12-27T04:56:58.48 0.1 positive manual P 111 13.0758 127 -0.16 96
IV.ATPC.HHE. 2021-12-27T04:56:58.69 0.1 positive manual P 152 12.3765 128 0.16 96
IV.PARC.HHZ. 2021-12-27T04:56:58.63 0.1 undecidable manual P 304 13.9749 125 -0.15 96
IV.APEC.HHZ. 2021-12-27T04:56:58.79 0.3 undecidable manual S 128 3.6963 159 -0.2 72
IV.SAIV.HNZ. 2021-12-27T04:56:58.03 0.3 undecidable manual P 14 9.7791 135 -0.11 73
IV.BADI.EHZ. 2021-12-27T04:56:58.76 0.1 positive manual P 236 13.5753 126 0.04 98
IV.APEC.HHZ. 2021-12-27T04:56:57.48 0.1 positive manual P 128 3.6963 159 0.02 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.APEC.HHN. ML:2.6 0.007175000000000001 1.4 AML other m 2021-12-27T04:56:58.81
IV.APEC.HNE. ML:2.8 0.011314999999999999 1.44 AML other m 2021-12-27T04:56:59.00
IV.APEC.HNN. ML:2.6 0.0075 0.42 AML other m 2021-12-27T04:56:59.82
IV.APEC.HHE. ML:2.8 0.01175 1.44 AML other m 2021-12-27T04:56:59.00
IV.PIEI.HHE. ML:2.5 0.00331 1.66 AML other m 2021-12-27T04:57:00.02
IV.PIEI.HNE. ML:2.5 0.0031799999999999997 1.66 AML other m 2021-12-27T04:57:00.02
IV.PIEI.HNN. ML:2.1 0.001315 0.8 AML other m 2021-12-27T04:57:00.89
IV.PARC.HHN. ML:2.1 0.00138 0.18 AML other m 2021-12-27T04:57:01.12
IV.PIEI.HHN. ML:2.1 0.0012749999999999999 0.1 AML other m 2021-12-27T04:57:01.50
IV.BADI.EHE. ML:2.5 0.0035800000000000003 0.2 AML other m 2021-12-27T04:57:01.66
IV.PARC.HHE. ML:2.0 0.001123 1.36 AML other m 2021-12-27T04:57:01.26
IV.BADI.EHN. ML:2.3 0.00233 0.38 AML other m 2021-12-27T04:57:02.49
IV.PE3.EHE. ML:2.4 0.0023 0.46 AML other m 2021-12-27T04:57:02.75
IV.PE3.EHN. ML:2.5 0.00279 0.32 AML other m 2021-12-27T04:57:02.94
IV.SSP9.EHN. ML:1.8 0.0004415 0.76 AML other m 2021-12-27T04:57:04.33
IV.SSP9.EHE. ML:1.6 0.00028300000000000005 0.66 AML other m 2021-12-27T04:57:04.04
IV.FRON.EHE. ML:1.7 0.00026450000000000003 0.98 AML other m 2021-12-27T04:57:06.11
IV.FRON.EHN. ML:2.2 0.000768 0.48 AML other m 2021-12-27T04:57:06.29
IV.MPAG.EHN. ML:1.8 0.0003175 0.38 AML other m 2021-12-27T04:57:06.14
IV.CPGN.HNN. ML:2.1 0.0007595000000000001 0.36 AML other m 2021-12-27T04:57:06.52
IV.CPGN.EHE. ML:2.0 0.0005589999999999999 0.38 AML other m 2021-12-27T04:57:06.34
IV.CPGN.EHN. ML:2.1 0.0008445 0.42 AML other m 2021-12-27T04:57:06.14
IV.ATMI.HHN. ML:1.9 0.000431 0.52 AML other m 2021-12-27T04:57:06.12
IV.MPAG.EHE. ML:1.8 0.00033699999999999995 0.1 AML other m 2021-12-27T04:57:06.50
IV.ATFO.HHN. ML:1.8 0.000345 1 AML other m 2021-12-27T04:57:06.11
IV.ATMI.HHE. ML:2.1 0.0005985000000000001 0.56 AML other m 2021-12-27T04:57:06.62
IV.CPGN.HNE. ML:1.9 0.000526 0.22 AML other m 2021-12-27T04:57:07.78
IV.CRE.HHN. ML:2.0 0.00039 1.68 AML other m 2021-12-27T04:57:07.11
IV.CRE.HHE. ML:1.7 0.00020899999999999998 0.92 AML other m 2021-12-27T04:57:08.84
IV.SSFR.HHE. ML:2.5 0.0012749999999999999 0.98 AML other m 2021-12-27T04:57:08.36
IV.SSFR.HNN. ML:2.6 0.001675 1.86 AML other m 2021-12-27T04:57:08.97
IV.MURB.HHN. ML:2.4 0.0010004999999999999 0.98 AML other m 2021-12-27T04:57:09.05
IV.SSFR.HNE. ML:2.6 0.0014550000000000001 0.6 AML other m 2021-12-27T04:57:09.36
IV.MURB.HNN. ML:2.4 0.0009695 0.98 AML other m 2021-12-27T04:57:09.06
IV.SSFR.HHN. ML:2.6 0.0015049999999999998 0.64 AML other m 2021-12-27T04:57:09.04
IV.MURB.HHE. ML:2.4 0.001007 0.52 AML other m 2021-12-27T04:57:09.48
IV.MURB.HNE. ML:2.3 0.000829 0.54 AML other m 2021-12-27T04:57:09.50
IV.CAFI.HHE. ML:1.8 0.000177 0.1 AML other m 2021-12-27T04:57:10.85
IV.CAFI.HNE. ML:1.7 0.00016649999999999998 0.1 AML other m 2021-12-27T04:57:10.80
IV.CAFI.HHN. ML:1.9 0.00023850000000000002 1.52 AML other m 2021-12-27T04:57:10.87
IV.CAFI.HNN. ML:1.9 0.000224 1.54 AML other m 2021-12-27T04:57:10.88
IV.FOSV.EHE. ML:1.6 0.000124 0.5 AML other m 2021-12-27T04:57:11.00
IV.FOSV.EHN. ML:1.5 0.00010505 0.14 AML other m 2021-12-27T04:57:11.45
IV.ATFO.HHE. ML:1.8 0.00033850000000000004 0.68 AML other m 2021-12-27T04:57:11.80
IV.ARVD.HHE. ML:1.8 0.00017199999999999998 1.38 AML other m 2021-12-27T04:57:11.29
IV.CRTC.HHN. ML:2.0 0.00033027235 0.6016 AML other m 2021-12-27T04:57:12.09
IV.ARVD.HHN. ML:1.7 0.000152 1.4 AML other m 2021-12-27T04:57:12.14
IV.CRTC.HHE. ML:2.0 0.00027235965 2 AML other m 2021-12-27T04:57:12.53
IV.ATCC.EHN. ML:1.8 0.00018451295 0.2592 AML other m 2021-12-27T04:57:12.56
IV.ASQU.HHE. ML:1.5 0.0000774 0.5 AML other m 2021-12-27T04:57:13.27
IV.ATCC.HNE. ML:2.0 0.00027600000000000004 0.5 AML other m 2021-12-27T04:57:13.99
IV.ASQU.HHN. ML:1.7 0.00011125000000000001 0.92 AML other m 2021-12-27T04:57:13.30
IV.PESA.HHE. ML:2.6 0.0009065000000000001 0.2 AML other m 2021-12-27T04:57:14.27
IV.PESA.HHN. ML:2.4 0.0006414999999999999 0.18 AML other m 2021-12-27T04:57:14.56
IV.SNTG.HHN. ML:1.9 0.000164 0.2 AML other m 2021-12-27T04:57:15.00
IV.ATCC.EHE. ML:1.9 0.000235 1.16 AML other m 2021-12-27T04:57:15.69
IV.SNTG.HHE. ML:1.6 0.00009525 0.76 AML other m 2021-12-27T04:57:16.19
IV.EL6.EHE. ML:2.0 0.000191 0.82 AML other m 2021-12-27T04:57:18.25
IV.ATCC.HNN. ML:2.0 0.000275 1.14 AML other m 2021-12-27T04:57:18.32
IV.CING.HHN. ML:1.6 0.0000718 1.32 AML other m 2021-12-27T04:57:19.85
IV.ASSB.HHE. ML:1.6 0.0000752 0.42 AML other m 2021-12-27T04:57:19.10
IV.EL6.EHN. ML:1.9 0.000154 0.54 AML other m 2021-12-27T04:57:19.73
IV.CING.HHE. ML:1.6 0.00007115 0.18 AML other m 2021-12-27T04:57:19.78
IV.ASSB.HHN. ML:1.6 0.0000681 0.24 AML other m 2021-12-27T04:57:21.55
IV.CESI.HHE. ML:1.6 0.000059800000000000003 1.28 AML other m 2021-12-27T04:57:23.93
IV.MGAB.HHE. ML:1.9 0.000123 0.4 AML other m 2021-12-27T04:57:24.35
IV.CESI.HHN. ML:1.5 0.00004615 0.52 AML other m 2021-12-27T04:57:24.66
IV.MGAB.HHN. ML:1.9 0.0001255 1.12 AML other m 2021-12-27T04:57:26.25
IV.FDMO.HHN. ML:1.5 0.0000422 1.18 AML other m 2021-12-27T04:57:28.00
IV.FDMO.HHE. ML:1.7 0.0000654 0.18 AML other m 2021-12-27T04:57:28.16
IV.NRCA.HHN. ML:1.7 0.00004425 0.86 AML other m 2021-12-27T04:57:29.67
IV.NRCA.HHE. ML:1.7 0.000044200000000000004 0.5 AML other m 2021-12-27T04:57:31.23
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