Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.2 on date 08-12-2021 and time 07:37:34 (Italy) in region 1 km S Preci (PG)

A magnitude ML 1.2 earthquake occured in region: 1 km S Preci (PG), on

  • 08-12-2021 06:37:34 (UTC)
  • 08-12-2021 07:37:34 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8720, 13.0380 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 1 724 724
Visso MC 8 1107 1831
Sellano PG 9 1079 2910
Castelsantangelo sul Nera MC 10 281 3191
Norcia PG 10 4957 8148
Cerreto di Spoleto PG 11 1075 9223
Ussita MC 12 444 9667
Monte Cavallo MC 14 145 9812
Cascia PG 17 3217 13029
Vallo di Nera PG 18 364 13393
Fiordimonte MC 19 202 13595
Pieve Torina MC 19 1458 15053
Poggiodomo PG 20 117 15170

Municipalities with at least 50000 inhabitants

An earthquake occurred to
29 Km E of Foligno (57155 inhabitants)
47 Km NE of Terni (111501 inhabitants)
59 Km E of Perugia (166134 inhabitants)
59 Km W of Teramo (54892 inhabitants)
65 Km NW of L'Aquila (69753 inhabitants)
91 Km NE of Viterbo (67173 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
99 Km W of Montesilvano (53738 inhabitants)
100 Km N of Guidonia Montecelio (88673 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 1.2 2021-12-08
06:37:34		 42.8718 13.0383 11 2022-03-30
13:04:35		 Bollettino Sismico Italiano INGV 100570311
Reviewed
Rev100 		ML 1.6 2021-12-08
06:37:34		 42.8742 13.0427 11 2021-12-08
06:43:02		 Sala Sismica INGV-Roma 98276101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-08 06:37:34 ± 0.05
Latitude 42.8718 ± 0.0018
Longitude 13.0383 ± 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 100570311

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 320
Semi-minor axis of confidence ellipse (meter) 197
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 81
Circular confidence region, given by single value of horizontal uncertainty (meter) 320.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 43
Number of associated phases, regardless of their use for origin computation 45
Number of defining phases 44
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) 0.51621
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 45
Type of magnitude ML
Reference to an origin 100570311
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-02-03 16:22:20

ML:1.6

Field Value
Value 1.6
Uncertainty 0.4
Num. used stations 22
Type of magnitude ML
Reference to an origin 98276101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-08 06:43:02
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CING.HHZ. 2021-12-08T06:37:53.10 0.3 undecidable manual S 13 57.2982 50 0.36 66
IV.TERO.HHZ. 2021-12-08T06:37:51.76 0.6 undecidable manual S 121 53.7018 50 -0.02 47
IV.EL6.EHZ. 2021-12-08T06:37:51.70 0.3 undecidable manual S 6 51.0156 50 0.64 61
IV.SNTG.HHZ. 2021-12-08T06:37:49.07 0.3 undecidable manual S 349 43.2234 50 0.09 71
IV.RM33.EHZ. 2021-12-08T06:37:48.82 0.3 undecidable manual S 160 42.7239 50 -0.03 72
IV.MF5.EHZ. 2021-12-08T06:37:47.78 0.3 undecidable manual S 69 36.5412 50 0.58 64
IV.ASSB.HHZ. 2021-12-08T06:37:47.19 0.3 undecidable manual S 302 36.1416 50 0.09 72
IV.GUMA.HHZ. 2021-12-08T06:37:46.52 0.3 undecidable manual S 49 32.0457 50 0.52 66
IV.SSFR.HHZ. 2021-12-08T06:37:46.61 3.0 undecidable manual P -0.27 0
IV.LNSS.HHZ. 2021-12-08T06:37:45.39 0.3 undecidable manual S 180 29.8479 50 -0.01 74
IV.PF6.EHN. 2021-12-08T06:37:45.63 0.3 undecidable manual S 23 32.1456 50 -0.38 68
IV.MML1.EHZ. 2021-12-08T06:37:44.57 0.3 undecidable manual S 349 27.3504 50 -0.17 72
IV.TERO.HHZ. 2021-12-08T06:37:44.53 0.3 undecidable manual P 121 53.7018 50 -0.11 70
IV.CING.HHZ. 2021-12-08T06:37:44.90 0.6 undecidable manual P 13 57.2982 50 -0.29 44
IV.CSP1.EHZ. 2021-12-08T06:37:44.81 0.3 undecidable manual S 29 27.8499 50 -0.08 73
IV.EL6.EHZ. 2021-12-08T06:37:43.99 0.1 undecidable manual P 6 51.0156 50 -0.23 91
IV.MMO1.EHZ. 2021-12-08T06:37:43.15 0.3 undecidable manual S 82 23.6541 50 -0.6 65
IV.CESX.HHE. 2021-12-08T06:37:43.66 1.0 undecidable manual P 232 47.0196 50 0.06 24
IV.GAVE.EHZ. 2021-12-08T06:37:43.53 0.3 undecidable manual S 211 23.1546 50 -0.09 74
IV.CESI.HHZ. 2021-12-08T06:37:42.22 0.3 undecidable manual S 324 18.3705 120 -0.02 76
IV.SMA1.EHN. 2021-12-08T06:37:42.32 0.6 undecidable manual P 138 36.0417 50 0.4 45
IV.MF5.EHZ. 2021-12-08T06:37:42.06 0.3 undecidable manual P 69 36.5412 50 0.06 72
IV.SNTG.HHZ. 2021-12-08T06:37:42.91 0.3 undecidable manual P 349 43.2234 50 -0.12 71
IV.ARRO.EHZ. 2021-12-08T06:37:42.75 1.0 undecidable manual P 214 39.3273 50 0.33 23
IV.FDMO.HHZ. 2021-12-08T06:37:42.12 0.3 undecidable manual S 12 18.6702 120 -0.23 72
IV.RM33.EHZ. 2021-12-08T06:37:42.96 0.3 undecidable manual P 160 42.7239 50 0.01 72
IV.MOMA.HNZ. 2021-12-08T06:37:42.62 1.0 undecidable manual P 259 38.8278 50 0.27 23
IV.ASSB.HHZ. 2021-12-08T06:37:41.89 0.3 undecidable manual P 302 36.1416 50 -0.05 73
IV.GUMA.HHZ. 2021-12-08T06:37:41.44 0.1 undecidable manual P 49 32.0457 50 0.14 96
IV.CSP1.EHZ. 2021-12-08T06:37:40.52 0.1 positive manual P 29 27.8499 50 -0.14 97
IV.FEMA.HNZ. 2021-12-08T06:37:40.03 0.3 undecidable manual S 5 10.0788 137 0.07 76
IV.MC2.EHZ. 2021-12-08T06:37:40.66 0.3 undecidable manual S 70 12.9759 129 -0.05 76
IV.MML1.EHZ. 2021-12-08T06:37:40.45 0.1 undecidable manual P 349 27.3504 50 -0.13 97
IT.MTCL.HGZ. 2021-12-08T06:37:40.79 0.3 undecidable manual S 347 13.875 127 -0.17 74
IV.LNSS.HHZ. 2021-12-08T06:37:40.86 0.1 undecidable manual P 180 29.8479 50 -0.1 97
IV.PF6.EHN. 2021-12-08T06:37:40.96 0.1 undecidable manual P 23 32.1456 50 -0.35 92
IV.NRCA.HNZ. 2021-12-08T06:37:39.32 0.3 undecidable manual S 124 7.4814 145 -0.08 76
IV.FDMO.HHZ. 2021-12-08T06:37:39.12 0.1 positive manual P 12 18.6702 120 -0.08 99
IV.CESI.HHZ. 2021-12-08T06:37:39.25 0.1 positive manual P 324 18.3705 120 0.12 99
IV.MMO1.EHZ. 2021-12-08T06:37:39.84 0.1 positive manual P 82 23.6541 50 -0.17 97
IV.GAVE.EHZ. 2021-12-08T06:37:39.98 0.1 positive manual P 211 23.1546 50 0.06 99
IV.FEMA.HNZ. 2021-12-08T06:37:38.06 0.3 undecidable manual P 5 10.0788 137 0.24 73
IV.MC2.EHZ. 2021-12-08T06:37:38.42 0.1 positive manual P 70 12.9759 129 0.17 98
IT.MTCL.HGZ. 2021-12-08T06:37:38.48 0.1 undecidable manual P 347 13.875 127 0.09 100
IV.NRCA.HNZ. 2021-12-08T06:37:37.63 0.1 undecidable manual P 124 7.4814 145 0.14 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.8 0.000905 0.08 AML other m 2021-12-08T06:37:39.39
IV.NRCA.HHN. ML:1.8 0.00092244915 0.08 AML other m 2021-12-08T06:37:39.39
IV.NRCA.HHE. ML:1.8 0.0009008982999999999 0.08 AML other m 2021-12-08T06:37:39.52
IV.NRCA.HNE. ML:1.8 0.0008642044499999999 0.0896 AML other m 2021-12-08T06:37:39.52
IV.FDMO.HHN. ML:1.2 0.00012207905 0.16 AML other m 2021-12-08T06:37:42.73
IV.MC2.EHN. ML:2.0 0.0009785 0.24 AML other m 2021-12-08T06:37:42.41
IV.FDMO.HHE. ML:1.4 0.0001953627 0.1184 AML other m 2021-12-08T06:37:42.75
IV.CESI.HHE. ML:1.1 0.00009141824500000001 0.08 AML other m 2021-12-08T06:37:42.85
IV.MC2.EHE. ML:1.7 0.00048758585 0.2208 AML other m 2021-12-08T06:37:41.71
IV.CESI.HHN. ML:1.2 0.00011292451500000001 0.08 AML other m 2021-12-08T06:37:42.81
IV.MMO1.EHN. ML:1.6 0.00024165 0.1376 AML other m 2021-12-08T06:37:44.05
IV.MMO1.EHE. ML:1.6 0.0002255 0.12 AML other m 2021-12-08T06:37:43.68
IV.GAVE.EHN. ML:1.7 0.000336 0.2 AML other m 2021-12-08T06:37:44.14
IV.GAVE.EHE. ML:1.6 0.0002569116 0.24 AML other m 2021-12-08T06:37:43.80
IV.MML1.EHN. ML:1.1 0.0000697 1.82 AML other m 2021-12-08T06:37:45.94
IV.LNSS.HHE. ML:1.5 0.00014700000000000002 1.86 AML other m 2021-12-08T06:37:46.99
IV.LNSS.HHN. ML:1.3 0.00010139978 0.1184 AML other m 2021-12-08T06:37:46.50
IV.MML1.EHE. ML:0.9 0.000044379389999999997 0.1792 AML other m 2021-12-08T06:37:45.18
IV.GUMA.HHE. ML:1.0 0.00004385383499999999 0.16 AML other m 2021-12-08T06:37:46.94
IV.GUMA.HHN. ML:1.1 0.000055614835000000004 0.2016 AML other m 2021-12-08T06:37:49.30
IV.CESI.HNE. ML:1.0 0.000079708018 0.0896 AML other m 2021-12-08T06:37:42.85
IV.CESI.HNN. ML:1.2 0.00013053046500000002 0.0992 AML other m 2021-12-08T06:37:42.80
IV.GAVE.HNE. ML:1.6 0.00024948875 0.24 AML other m 2021-12-08T06:37:43.80
IV.GAVE.HNN. ML:1.2 0.00009427144 0.16 AML other m 2021-12-08T06:37:44.54
IV.MML1.HNE. ML:1.0 0.00005089197 0.2304 AML other m 2021-12-08T06:37:46.82
IV.MML1.HNN. ML:1.3 0.00010798349500000001 0.1792 AML other m 2021-12-08T06:37:44.94
IV.CSP1.EHN. ML:1.4 0.0001265523 0.1984 AML other m 2021-12-08T06:37:45.66
IV.CSP1.EHE. ML:1.2 0.0000914335 0.1408 AML other m 2021-12-08T06:37:45.71
IV.LNSS.HNN. ML:1.4 0.00012612469500000002 0.1376 AML other m 2021-12-08T06:37:46.50
IV.LNSS.HNE. ML:1.5 0.00014692401 0.1408 AML other m 2021-12-08T06:37:45.00
IV.ASSB.HHN. ML:0.9 0.000027999160000000002 0.1792 AML other m 2021-12-08T06:37:47.66
IV.ASSB.HHE. ML:1.0 0.000035129294999999995 0.1792 AML other m 2021-12-08T06:37:47.63
IV.MF5.EHE. ML:0.9 0.000032454725 0.2016 AML other m 2021-12-08T06:37:48.14
IV.MF5.EHN. ML:1.2 0.000053972445 0.2816 AML other m 2021-12-08T06:37:48.20
IV.SNTG.HHE. ML:0.7 0.000015052329999999999 0.1216 AML other m 2021-12-08T06:37:51.99
IV.SNTG.HHN. ML:0.7 0.000016481064999999998 0.24 AML other m 2021-12-08T06:37:50.24
IV.RM33.EHE. ML:1.0 0.000028931926 0.1792 AML other m 2021-12-08T06:37:50.40
IV.RM33.EHN. ML:1.0 0.000032995490000000006 0.1216 AML other m 2021-12-08T06:37:49.86
IV.EL6.EHE. ML:1.2 0.000041311815 0.1792 AML other m 2021-12-08T06:37:53.29
IV.EL6.EHN. ML:1.0 0.000027312459999999997 0.1408 AML other m 2021-12-08T06:37:52.69
IV.TERO.HHN. ML:0.9 0.000019466645 0.16 AML other m 2021-12-08T06:37:52.20
IV.CING.HHE. ML:1.1 0.0000242509915 0.2208 AML other m 2021-12-08T06:37:54.77
IV.CING.HHN. ML:0.8 0.000016112281499999998 0.1216 AML other m 2021-12-08T06:37:54.18
IV.SSFR.HHN. ML:1.1 0.000022730180000000003 0.1792 AML other m 2021-12-08T06:37:59.49
IV.SSFR.HHE. ML:1.1 0.000024719144999999998 0.2368 AML other m 2021-12-08T06:37:59.94
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