Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 28-12-2021 and time 05:01:46 (Italy) in region 3 km E Preci (PG)

A magnitude ML 2.0 earthquake occured in region: 3 km E Preci (PG), on

  • 28-12-2021 04:01:46 (UTC)
  • 28-12-2021 05:01:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8760, 13.0720 at 11 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
Preci PG 3 724 724
Visso MC 6 1107 1831
Castelsantangelo sul Nera MC 7 281 2112
Norcia PG 9 4957 7069
Ussita MC 9 444 7513
Sellano PG 12 1079 8592
Cerreto di Spoleto PG 14 1075 9667
Monte Cavallo MC 14 145 9812
Fiordimonte MC 18 202 10014
Cascia PG 18 3217 13231
Bolognola MC 18 142 13373
Pieve Torina MC 19 1458 14831
Acquacanina MC 19 121 14952
Fiastra MC 19 559 15511

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Foligno (57155 inhabitants)
49 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
61 Km E of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
90 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
97 Km W of Montesilvano (53738 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 2021-12-28
04:01:46		 42.8763 13.0723 11 2022-03-30
13:04:29		 Bollettino Sismico Italiano INGV 99713561
Reviewed
Rev100 		ML 1.9 2021-12-28
04:01:46		 42.8817 13.0673 11 2021-12-28
04:10:32		 Sala Sismica INGV-Roma 99072001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-28 04:01:46 ± 0.04
Latitude 42.8763 ± 0.0027
Longitude 13.0723 ± 0.0037
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 99713561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 250
Semi-minor axis of confidence ellipse (meter) 243
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 48
Circular confidence region, given by single value of horizontal uncertainty (meter) 250.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 41
Number of associated phases, regardless of their use for origin computation 52
Number of defining phases 46
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.78601
Number of stations at which the event was observed 44
Number of stations from which data was used for origin computation 39
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.4
Num. used stations 94
Type of magnitude ML
Reference to an origin 99713561
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-01-12 20:18:17

ML:1.9

Field Value
Value 1.9
Uncertainty 0.2
Num. used stations 45
Type of magnitude ML
Reference to an origin 99072001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-28 04:10:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
OT.OT17.EHZ. 2021-12-28T04:02:22.09 3.0 negative manual Pn 1.87 0
IV.FIAM.HHZ. 2021-12-28T04:02:08.67 3.0 undecidable manual S 0.47 0
IV.CAFI.HHZ. 2021-12-28T04:02:04.46 3.0 positive manual P 0.12 0
IV.PIEI.HHZ. 2021-12-28T04:02:01.13 0.6 undecidable manual P 329 85.0482 90 0.3 41
IV.MPAG.EHZ. 2021-12-28T04:02:01.67 0.6 undecidable manual P 343 87.246 90 0.5 39
IV.FAGN.HHZ. 2021-12-28T04:02:00.49 3.0 positive manual P -0.08 0
IV.MGAB.HHZ. 2021-12-28T04:02:00.27 3.0 undecidable manual P 0.02 0
IV.VCEL.EHZ. 2021-12-28T04:02:00.51 0.6 undecidable manual P 130 82.3509 90 0.09 44
IV.FRON.EHZ. 2021-12-28T04:01:59.54 0.6 undecidable manual P 339 76.4679 90 0.03 44
IV.ARVD.HHZ. 2021-12-28T04:01:58.54 0.6 undecidable manual P 351 69.7746 90 0.06 45
IV.FIAM.HHZ. 2021-12-28T04:01:58.42 3.0 positive manual P -0.1 0
IV.SSFR.HHZ. 2021-12-28T04:01:57.97 0.6 undecidable manual P 339 66.378 90 0.01 45
IV.OFFI.HHZ. 2021-12-28T04:01:56.25 0.6 undecidable manual P 82 50.3163 91 0.78 38
IV.CING.HHZ. 2021-12-28T04:01:56.29 0.6 undecidable manual P 10 56.2992 90 -0.1 46
IV.EL6.EHZ. 2021-12-28T04:01:55.40 0.3 undecidable manual P 3 50.3163 91 -0.08 69
IV.FOSV.EHZ. 2021-12-28T04:01:55.66 0.3 undecidable manual P 332 52.8027 90 -0.2 67
IV.TERO.HHZ. 2021-12-28T04:01:55.29 0.3 undecidable manual P 123 51.6039 91 -0.39 64
IV.MNTT.EHZ. 2021-12-28T04:01:55.72 0.3 undecidable manual P 64 47.2194 91 0.72 59
IV.CESX.HHZ. 2021-12-28T04:01:55.34 0.6 undecidable manual P 233 49.5171 91 -0.01 47
IV.SNTG.HHZ. 2021-12-28T04:01:54.30 0.3 undecidable manual P 346 43.3233 91 -0.1 70
IV.GAG1.HNE. 2021-12-28T04:01:54.24 1.0 undecidable manual P 359 40.1265 91 0.33 22
IV.CAMP.HHZ. 2021-12-28T04:01:54.61 0.3 undecidable manual P 144 46.7199 91 -0.31 66
IV.MOMA.HHZ. 2021-12-28T04:01:54.22 0.3 undecidable manual P 259 41.625 91 0.08 70
IV.ARRO.EHZ. 2021-12-28T04:01:54.24 0.6 undecidable manual P 217 41.3253 91 0.14 47
IV.ASCOL.EHN. 2021-12-28T04:01:54.07 0.6 undecidable manual P 94 42.1245 91 -0.15 46
IV.MNTP.HNZ. 2021-12-28T04:01:54.80 0.6 undecidable manual P 48 43.3233 91 0.4 44
IV.ASSB.HHZ. 2021-12-28T04:01:53.48 0.3 undecidable manual P 299 38.3283 91 -0.15 70
IV.CESI.HNZ. 2021-12-28T04:01:53.97 0.3 undecidable manual S 316 19.7691 93 -0.06 74
IV.MDAR.HNN. 2021-12-28T04:01:53.11 0.6 undecidable manual P 9 35.5422 91 -0.09 47
IV.MF5.EHZ. 2021-12-28T04:01:53.17 0.3 undecidable manual P 68 33.8439 91 0.24 69
IV.FDMO.HHZ. 2021-12-28T04:01:53.17 0.3 undecidable manual S 4 17.7711 94 -0.35 70
IV.SAP2.EHZ. 2021-12-28T04:01:53.59 0.3 undecidable manual P 47 36.0417 91 0.31 68
IV.MMO1.EHZ. 2021-12-28T04:01:53.98 0.3 undecidable manual S 83 20.868 93 -0.35 68
IV.MTRA.EHZ. 2021-12-28T04:01:52.09 0.3 undecidable manual P 117 29.5482 91 -0.18 70
IV.GUMA.HHZ. 2021-12-28T04:01:52.44 0.3 undecidable manual P 46 29.748 91 0.14 71
IT.FOPC.HGN. 2021-12-28T04:01:52.74 0.3 undecidable manual P 289 31.746 91 0.13 71
IT.MTCL.HGZ. 2021-12-28T04:01:52.24 0.3 undecidable manual S 336 14.3745 102 -0.35 70
IV.LNSS.HHZ. 2021-12-28T04:01:52.35 0.3 undecidable manual P 185 30.4473 91 -0.06 71
IV.PF6.EHN. 2021-12-28T04:01:52.16 0.3 undecidable manual P 19 30.6471 91 -0.29 69
IV.SMA1.EHZ. 2021-12-28T04:01:52.89 0.3 undecidable manual P 142 34.6431 91 -0.18 69
IV.MC2.EHZ. 2021-12-28T04:01:51.74 0.1 undecidable manual S 68 10.2786 121 0.15 97
IV.GAVE.EHZ. 2021-12-28T04:01:51.72 0.3 undecidable manual P 215 25.0527 92 0.14 72
IV.CSP1.EHZ. 2021-12-28T04:01:51.67 0.3 undecidable manual P 24 26.2515 91 -0.09 72
IV.FEMA.HNZ. 2021-12-28T04:01:51.43 0.1 undecidable manual S 349 9.6792 124 -0.03 100
IV.FDMO.HHZ. 2021-12-28T04:01:50.40 0.1 negative manual P 4 17.7711 94 -0.07 98
IV.MMO1.EHZ. 2021-12-28T04:01:50.79 0.1 undecidable manual P 83 20.868 93 -0.15 95
IV.CESI.HNZ. 2021-12-28T04:01:50.80 0.1 undecidable manual P 316 19.7691 93 0.04 98
IV.NRCA.HNZ. 2021-12-28T04:01:50.60 0.1 undecidable manual S 144 5.8941 144 -0.12 99
IV.FEMA.HNZ. 2021-12-28T04:01:49.43 0.1 undecidable manual P 349 9.6792 124 0.15 97
IV.MC2.EHZ. 2021-12-28T04:01:49.51 0.1 undecidable manual P 68 10.2786 121 0.16 98
IT.MTCL.HGZ. 2021-12-28T04:01:49.95 0.1 undecidable manual P 336 14.3745 102 0.01 99
IV.NRCA.HNZ. 2021-12-28T04:01:48.99 0.1 negative manual P 144 5.8941 144 0.14 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:3.1 0.016935890000000002 0.1088 AML other m 2021-12-28T04:01:50.72
IV.NRCA.HHN. ML:3.1 0.018562215000000003 0.0992 AML other m 2021-12-28T04:01:50.72
IV.NRCA.HNE. ML:3.0 0.01375 0.18 AML other m 2021-12-28T04:01:50.77
IV.NRCA.HHE. ML:3.0 0.014663105 0.1184 AML other m 2021-12-28T04:01:50.79
IV.FEMA.HNN. ML:2.4 0.0032137884999999997 0.1312 AML other m 2021-12-28T04:01:51.86
IV.FEMA.HNE. ML:2.4 0.0030777770000000003 0.1312 AML other m 2021-12-28T04:01:52.62
IT.MTCL.HGN. ML:4.0 0.08782677 0.0608 AML other m 2021-12-28T04:01:52.71
IT.MTCL.HGE. ML:3.9 0.08211173 0.0608 AML other m 2021-12-28T04:01:52.84
IV.FDMO.HHE. ML:2.0 0.00072903625 0.2208 AML other m 2021-12-28T04:01:53.43
IV.CESI.HNE. ML:2.3 0.0013889585 0.1504 AML other m 2021-12-28T04:01:54.21
IV.CESI.HHE. ML:2.3 0.0014744565 0.1792 AML other m 2021-12-28T04:01:54.21
IV.CESI.HNN. ML:2.4 0.0020080475 0.1792 AML other m 2021-12-28T04:01:54.34
IV.CESI.HHN. ML:2.4 0.001980261 0.16 AML other m 2021-12-28T04:01:54.34
IV.MMO1.EHN. ML:2.2 0.0010400000000000001 0.14 AML other m 2021-12-28T04:01:54.49
IV.MMO1.EHE. ML:2.3 0.0015249999999999999 0.32 AML other m 2021-12-28T04:01:55.15
IV.GAVE.HNN. ML:1.9 0.0005420000000000001 0.18 AML other m 2021-12-28T04:01:55.89
IV.GAVE.EHN. ML:2.4 0.001586686 0.1792 AML other m 2021-12-28T04:01:55.00
IV.CSP1.EHN. ML:2.3 0.0011400000000000002 0.16 AML other m 2021-12-28T04:01:55.86
IV.GAVE.EHE. ML:2.5 0.001935 0.16 AML other m 2021-12-28T04:01:55.88
IV.FDMO.HHN. ML:1.7 0.00042511695000000007 0.2816 AML other m 2021-12-28T04:01:56.17
IV.GAVE.HNE. ML:2.5 0.00181 0.16 AML other m 2021-12-28T04:01:56.33
IV.MTRA.HNE. ML:2.2 0.0007230000000000001 0.2 AML other m 2021-12-28T04:01:57.22
IV.MTRA.EHE. ML:2.1 0.00069500445 0.1792 AML other m 2021-12-28T04:01:57.21
IV.CSP1.EHE. ML:2.2 0.00090580275 0.2208 AML other m 2021-12-28T04:01:57.31
IV.MTRA.EHN. ML:2.2 0.00076177495 0.1792 AML other m 2021-12-28T04:01:57.40
IV.MTRA.HNN. ML:2.2 0.00075870525 0.1792 AML other m 2021-12-28T04:01:57.40
IV.LNSS.HHE. ML:2.1 0.0005645 0.12 AML other m 2021-12-28T04:01:57.79
IV.LNSS.HNN. ML:2.2 0.000798 0.14 AML other m 2021-12-28T04:01:58.44
IV.LNSS.HHN. ML:2.3 0.0008859999999999999 0.14 AML other m 2021-12-28T04:01:58.44
IV.LNSS.HNE. ML:2.0 0.00049948305 0.1376 AML other m 2021-12-28T04:01:58.74
IV.MF5.EHE. ML:2.2 0.0006085 0.18 AML other m 2021-12-28T04:01:59.22
IV.MF5.EHN. ML:2.0 0.000419 0.2 AML other m 2021-12-28T04:01:59.14
IV.SAP2.EHN. ML:2.9 0.002843879 0.2624 AML other m 2021-12-28T04:01:59.69
IV.GUMA.HNE. ML:2.2 0.0008005 1.26 AML other m 2021-12-28T04:01:59.20
IV.GUMA.HHE. ML:2.3 0.0009154626999999999 0.2976 AML other m 2021-12-28T04:01:59.84
IV.ASSB.HHE. ML:1.9 0.00026788185 1.6992 AML other m 2021-12-28T04:02:00.87
IV.GUMA.HHN. ML:2.3 0.0010249999999999999 0.36 AML other m 2021-12-28T04:02:00.05
IV.GUMA.HNN. ML:2.4 0.001115 1.54 AML other m 2021-12-28T04:02:00.06
IV.SAP2.EHE. ML:2.0 0.00041633735 0.0992 AML other m 2021-12-28T04:02:00.21
IV.ASSB.HHN. ML:1.8 0.00024869895 0.1408 AML other m 2021-12-28T04:02:00.62
IV.ARRO.EHN. ML:1.8 0.0002242264 0.1408 AML other m 2021-12-28T04:02:01.12
IV.SMA1.EHE. ML:1.9 0.0003038132 0.2208 AML other m 2021-12-28T04:02:01.08
IV.MOMA.HHE. ML:1.9 0.00024555125 0.16 AML other m 2021-12-28T04:02:01.31
IV.MOMA.HNE. ML:1.9 0.0002419058 0.1696 AML other m 2021-12-28T04:02:01.46
IV.CAMP.HHE. ML:1.5 0.00008675 0.2 AML other m 2021-12-28T04:02:01.35
IV.ARRO.EHE. ML:1.8 0.00023150000000000002 0.2 AML other m 2021-12-28T04:02:01.43
IV.SNTG.HHE. ML:1.4 0.000079903605 0.1408 AML other m 2021-12-28T04:02:01.61
IV.SNTG.HHN. ML:1.4 0.00008159298500000001 0.0992 AML other m 2021-12-28T04:02:01.84
IV.MOMA.HNN. ML:1.8 0.0002108255 0.1504 AML other m 2021-12-28T04:02:02.11
IV.MOMA.HHN. ML:1.9 0.000244 0.16 AML other m 2021-12-28T04:02:02.11
IV.SMA1.EHN. ML:1.9 0.0003255 0.36 AML other m 2021-12-28T04:02:02.71
IV.CESX.HHE. ML:1.9 0.00020424860000000001 1.6192 AML other m 2021-12-28T04:02:03.85
IV.TERO.HHE. ML:1.9 0.0002166168 0.1216 AML other m 2021-12-28T04:02:03.23
IV.FOSV.EHE. ML:1.4 0.00005777557 0.2784 AML other m 2021-12-28T04:02:03.50
IV.EL6.EHN. ML:2.0 0.000257 0.2 AML other m 2021-12-28T04:02:03.72
IV.MNTT.EHE. ML:2.2 0.00053972825 0.32 AML other m 2021-12-28T04:02:03.93
IV.CESX.HHN. ML:1.9 0.00021270919999999999 0.4608 AML other m 2021-12-28T04:02:03.60
IV.TERO.HNN. ML:1.9 0.0002087441 0.1408 AML other m 2021-12-28T04:02:04.45
IV.TERO.HHN. ML:1.9 0.00018041879999999998 0.1024 AML other m 2021-12-28T04:02:04.44
IV.TERO.HNE. ML:1.8 0.00017680080000000002 0.1088 AML other m 2021-12-28T04:02:04.56
IV.MNTT.EHN. ML:2.2 0.0005290069499999999 0.2176 AML other m 2021-12-28T04:02:05.04
IV.FOSV.HNE. ML:1.7 0.000124432065 1.568 AML other m 2021-12-28T04:02:05.82
IV.EL6.EHE. ML:1.9 0.00018828535 1.7984 AML other m 2021-12-28T04:02:05.98
IV.CING.HHE. ML:1.5 0.0000648 0.12 AML other m 2021-12-28T04:02:07.13
IV.SSFR.HNN. ML:2.0 0.00018542369999999998 1.6992 AML other m 2021-12-28T04:02:08.90
IV.FOSV.EHN. ML:1.5 0.00006823937499999999 0.32 AML other m 2021-12-28T04:02:08.46
IV.SSFR.HHN. ML:2.0 0.00017299999999999998 0.22 AML other m 2021-12-28T04:02:08.69
IV.FIAM.HHE. ML:1.3 0.000034200000000000005 1.32 AML other m 2021-12-28T04:02:08.89
IV.CAMP.HHN. ML:1.2 0.000049165345 0.5408 AML other m 2021-12-28T04:02:09.11
IV.CING.HHN. ML:1.5 0.00006425 0.24 AML other m 2021-12-28T04:02:09.20
IV.OFFI.HHN. ML:1.7 0.00013400508 0.7008 AML other m 2021-12-28T04:02:09.80
IV.FIAM.HHN. ML:1.2 0.00002715 1.22 AML other m 2021-12-28T04:02:09.33
IV.ARVD.HHE. ML:1.6 0.00006030000000000001 1.86 AML other m 2021-12-28T04:02:09.06
IV.FOSV.HNN. ML:1.6 0.000106847845 0.3808 AML other m 2021-12-28T04:02:09.80
IV.SSFR.HNE. ML:2.1 0.0002461386 0.272 AML other m 2021-12-28T04:02:10.50
IV.FRON.EHN. ML:1.7 0.00007165 0.2 AML other m 2021-12-28T04:02:10.60
IV.SSFR.HHE. ML:2.0 0.0001865 0.2 AML other m 2021-12-28T04:02:10.49
IV.ARVD.HHN. ML:1.3 0.00003141965 0.16 AML other m 2021-12-28T04:02:10.86
IV.CING.HNE. ML:3.5 0.0069190975 0.96 AML other m 2021-12-28T04:02:10.47
IV.FRON.EHE. ML:1.4 0.00003429079 0.16 AML other m 2021-12-28T04:02:12.38
IV.MGAB.HNE. ML:2.1 0.00018554369999999998 0.7008 AML other m 2021-12-28T04:02:13.16
IV.PIEI.HHN. ML:1.4 0.00003485 0.24 AML other m 2021-12-28T04:02:13.15
IV.VCEL.EHN. ML:1.7 0.00007217725 0.32 AML other m 2021-12-28T04:02:14.21
IV.FAGN.HHE. ML:1.9 0.0001015 0.86 AML other m 2021-12-28T04:02:15.47
IV.PIEI.HHE. ML:1.6 0.0000437778 0.1376 AML other m 2021-12-28T04:02:15.19
IV.FAGN.HHN. ML:1.8 0.000097173545 0.3008 AML other m 2021-12-28T04:02:15.55
IV.MGAB.HHE. ML:1.9 0.000107 0.44 AML other m 2021-12-28T04:02:16.27
IV.MGAB.HHN. ML:1.8 0.00008525 0.54 AML other m 2021-12-28T04:02:16.96
IV.CAFI.HHE. ML:1.4 0.0000268 1.64 AML other m 2021-12-28T04:02:18.14
IV.CAFI.HHN. ML:1.3 0.000022006705 1.3792 AML other m 2021-12-28T04:02:18.99
IV.VCEL.EHE. ML:1.8 0.000090749915 0.32 AML other m 2021-12-28T04:02:20.46
IV.MPAG.EHN. ML:1.4 0.00002904732 0.3808 AML other m 2021-12-28T04:02:20.72
IV.MGAB.HNN. ML:2.0 0.0001479285 0.8896 AML other m 2021-12-28T04:02:21.07
IV.MPAG.EHE. ML:1.5 0.000038281295 0.4192 AML other m 2021-12-28T04:02:24.60
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