Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 05-12-2022 and time 03:21:54 (UTC) in region 3 km NE Massa Martana (PG)

A magnitude ML 1.6 earthquake occured in region: 3 km NE Massa Martana (PG), on

  • 05-12-2022 03:21:54 (UTC)
  • 05-12-2022 04:21:54 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7940, 12.5570 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
Massa Martana PG 3 3770 3770
Giano dell'Umbria PG 5 3846 7616
Castel Ritaldi PG 10 3278 10894
Acquasparta TR 11 4778 15672
Todi PG 12 16851 32523
Gualdo Cattaneo PG 13 6155 38678
Montefalco PG 14 5679 44357
Collazzone PG 15 3473 47830
Bevagna PG 16 5081 52911
Spoleto PG 16 38218 91129
Montecastrilli TR 17 5022 96151
Fratta Todina PG 17 1839 97990
Monte Castello di Vibio PG 17 1567 99557
Trevi PG 18 8469 108026
Campello sul Clitunno PG 18 2442 110468
Avigliano Umbro TR 19 2558 113026
San Gemini TR 20 5018 118044

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Foligno (57155 inhabitants)
27 Km N of Terni (111501 inhabitants)
37 Km SE of Perugia (166134 inhabitants)
56 Km NE of Viterbo (67173 inhabitants)
85 Km NW of L'Aquila (69753 inhabitants)
89 Km N of Guidonia Montecelio (88673 inhabitants)
93 Km SE of Arezzo (99543 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
95 Km W of Teramo (54892 inhabitants)
100 Km NE of Civitavecchia (52991 inhabitants)
100 Km N of Roma (2864731 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 1.6 2022-12-05
03:21:54		 42.7942 12.5572 8 2024-03-01
15:28:11		 Bollettino Sismico Italiano INGV 112951111
Reviewed
Rev100 		ML 1.6 2022-12-05
03:21:54		 42.7967 12.5602 8 2022-12-05
03:36:55		 Sala Sismica INGV-Roma 112509171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2022-12-05 03:21:54 ± 0.06
Latitude 42.7942 ± 0.0027
Longitude 12.5572 ± 0.0061
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 112951111

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 495
Semi-minor axis of confidence ellipse (meter) 302
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 253
Circular confidence region, given by single value of horizontal uncertainty (meter) 490.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 39
Number of defining phases 34
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.74104
Number of stations at which the event was observed 23
Number of stations from which data was used for origin computation 20
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 32
Type of magnitude ML
Reference to an origin 112951111
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-12-19 16:02:09

ML:1.6

Field Value
Value 1.6
Uncertainty 0.2
Num. used stations 29
Type of magnitude ML
Reference to an origin 112509171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2022-12-05 03:36:55
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GUMA.HHZ. 2022-12-05T03:22:17.54 3.0 undecidable manual S 0.38 0
IV.SMA1.EHZ. 2022-12-05T03:22:15.81 0.3 undecidable manual S 106 65.9895 50 0.7 58
IV.CSP1.EHZ. 2022-12-05T03:22:14.31 3.0 undecidable manual S 58 62.0934 50 0.23 0
IV.MMO1.EHZ. 2022-12-05T03:22:14.80 0.3 undecidable manual S 79 63.6918 50 0.3 65
IV.RM33.EHZ. 2022-12-05T03:22:14.12 0.6 undecidable manual S 120 62.2932 50 0 46
IV.MC2.EHZ. 2022-12-05T03:22:12.22 0.6 undecidable manual S 76 53.0025 50 0.57 41
IV.MURB.HHZ. 2022-12-05T03:22:12.14 0.3 undecidable manual S 357 52.1034 50 0.74 58
IV.FDMO.HHZ. 2022-12-05T03:22:10.95 0.6 undecidable manual S 58 50.8158 50 -0.1 47
IV.LNSS.HHZ. 2022-12-05T03:22:09.34 0.6 undecidable manual S 118 44.7219 50 -0.11 47
IV.NRCA.HHZ. 2022-12-05T03:22:09.68 0.6 undecidable manual S 84 45.5211 50 0.02 48
IV.PIEI.HHZ. 2022-12-05T03:22:09.09 0.1 undecidable manual P 359 82.251 50 0.24 85
IV.ATCC.EHZ. 2022-12-05T03:22:09.17 0.6 undecidable manual S 9 43.9227 50 -0.05 48
IV.ATPI.EHZ. 2022-12-05T03:22:07.02 3.0 undecidable manual P -0.38 0
IV.CESI.HHZ. 2022-12-05T03:22:07.02 0.3 undecidable manual S 50 36.6411 50 -0.27 69
IV.FIAM.HHZ. 2022-12-05T03:22:07.18 3.0 undecidable manual P -0.65 0
IV.SMA1.EHZ. 2022-12-05T03:22:06.31 0.1 undecidable manual P 106 65.9895 50 -0.03 92
IV.RM33.EHZ. 2022-12-05T03:22:05.62 0.1 undecidable manual P 120 62.2932 50 -0.14 90
IV.CSP1.EHZ. 2022-12-05T03:22:05.57 0.1 undecidable manual P 58 62.0934 50 -0.17 90
IV.MMO1.EHZ. 2022-12-05T03:22:05.92 3.0 positive manual P 79 63.6918 50 -0.06 0
IV.MURB.HHZ. 2022-12-05T03:22:04.08 0.3 positive manual P 357 52.1034 50 -0.12 69
IV.ASSB.HHZ. 2022-12-05T03:22:04.78 0.3 undecidable manual S 17 28.749 105 0.08 73
IV.MC2.EHZ. 2022-12-05T03:22:04.30 0.1 undecidable manual P 76 53.0025 50 -0.04 94
IV.ARRO.EHZ. 2022-12-05T03:22:04.97 0.3 undecidable manual S 144 29.2485 105 0.1 73
IV.SACS.HHZ. 2022-12-05T03:22:04.37 0.6 undecidable manual P 277 53.0025 50 0.03 47
IV.FDMO.HHZ. 2022-12-05T03:22:03.76 0.1 undecidable manual P 58 50.8158 50 -0.23 91
IV.CESX.HHZ. 2022-12-05T03:22:02.22 0.3 undecidable manual S 173 20.7681 111 0.17 73
IV.ATCC.EHZ. 2022-12-05T03:22:02.59 0.3 undecidable manual P 9 43.9227 50 -0.34 67
IV.LNSS.HHZ. 2022-12-05T03:22:02.67 0.1 undecidable manual P 118 44.7219 50 -0.39 88
IV.MGAB.HHZ. 2022-12-05T03:22:02.08 0.1 undecidable manual P 290 38.5281 50 -0.02 97
IV.NRCA.HHZ. 2022-12-05T03:22:02.98 0.1 undecidable manual P 84 45.5211 50 -0.21 92
IV.CESI.HHZ. 2022-12-05T03:22:01.61 0.1 undecidable manual P 50 36.6411 50 -0.21 93
IV.ARRO.EHZ. 2022-12-05T03:22:00.39 0.1 undecidable manual P 144 29.2485 105 -0.03 98
IV.ASSB.HHZ. 2022-12-05T03:22:00.22 0.1 undecidable manual P 17 28.749 105 -0.1 97
IT.FOPC.HGZ. 2022-12-05T03:21:59.29 0.1 undecidable manual P 31 22.755 109 0.11 98
IV.CESX.HHZ. 2022-12-05T03:21:58.82 0.1 positive manual P 173 20.7681 111 0.03 100
IV.MOMA.HHZ. 2022-12-05T03:21:57.09 0.3 undecidable manual S 44 1.4985 169 -0.05 77
IV.MOMA.HHZ. 2022-12-05T03:21:56.16 0.1 undecidable manual P 44 1.4985 169 0.2 99
IT.GNU.HGZ. 2022-12-05T03:21:56.15 0.1 undecidable manual P 45 1.4985 169 0.19 100
IT.GNU.HGZ. 2022-12-05T03:21:56.97 0.1 undecidable manual S 45 1.4985 169 -0.17 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IT.GNU.HGN. ML:0.0 0.27005250000000003 0.0512 AML other m 2022-12-05T03:21:57.33
IV.CESX.HHE. ML:1.4 0.000191 1 AML other m 2022-12-05T03:22:03.96
IV.CESX.HHN. ML:1.5 0.000247 1.82 AML other m 2022-12-05T03:22:04.04
IV.ASSB.HHN. ML:1.4 0.0001295 0.22 AML other m 2022-12-05T03:22:04.87
IV.ASSB.HHE. ML:1.4 0.000136 0.4 AML other m 2022-12-05T03:22:05.37
IV.ARRO.EHE. ML:1.3 0.00011205000000000001 0.64 AML other m 2022-12-05T03:22:05.75
IV.ARRO.EHN. ML:1.4 0.000122 1.5 AML other m 2022-12-05T03:22:06.87
IV.CESI.HHE. ML:1.3 0.00007384999999999999 1.04 AML other m 2022-12-05T03:22:07.12
IV.CESI.HHN. ML:1.4 0.0001104 1 AML other m 2022-12-05T03:22:08.08
IV.MGAB.HHN. ML:1.4 0.00009995 1.66 AML other m 2022-12-05T03:22:09.94
IV.MGAB.HHE. ML:1.4 0.00008724999999999999 1.8 AML other m 2022-12-05T03:22:09.06
IV.ATCC.EHN. ML:1.4 0.00006825 0.42 AML other m 2022-12-05T03:22:10.68
IV.NRCA.HHE. ML:1.5 0.0000958 0.98 AML other m 2022-12-05T03:22:10.72
IV.NRCA.HHN. ML:1.6 0.00011394999999999999 1.08 AML other m 2022-12-05T03:22:10.24
IV.LNSS.HHE. ML:1.8 0.0002135 0.14 AML other m 2022-12-05T03:22:11.09
IV.ATCC.EHE. ML:1.5 0.00009185 0.74 AML other m 2022-12-05T03:22:11.43
IV.FDMO.HHN. ML:1.4 0.00006435 0.12 AML other m 2022-12-05T03:22:11.62
IV.LNSS.HHN. ML:1.8 0.0001975 0.16 AML other m 2022-12-05T03:22:12.08
IV.FDMO.HHE. ML:1.4 0.0000637 0.42 AML other m 2022-12-05T03:22:12.31
IV.MURB.HHN. ML:0.0 0.00018449999999999999 0.36 AML other m 2022-12-05T03:22:13.47
IV.RM33.EHE. ML:1.6 0.0000698 0.94 AML other m 2022-12-05T03:22:15.47
IV.RM33.EHN. ML:1.6 0.00008065 0.42 AML other m 2022-12-05T03:22:15.53
IV.MURB.HHE. ML:0.0 0.000215 0.46 AML other m 2022-12-05T03:22:16.02
IV.MMO1.EHE. ML:1.5 0.0000608 0.84 AML other m 2022-12-05T03:22:16.05
IV.MMO1.EHN. ML:1.5 0.00006025 0.62 AML other m 2022-12-05T03:22:16.81
IV.SMA1.EHE. ML:1.9 0.00013450000000000002 0.3 AML other m 2022-12-05T03:22:17.13
IV.SMA1.EHN. ML:1.6 0.0000703 0.22 AML other m 2022-12-05T03:22:17.23
IV.GUMA.HHE. ML:1.9 0.00012465 0.22 AML other m 2022-12-05T03:22:17.48
IV.ATMI.HHE. ML:1.8 0.000123 0.28 AML other m 2022-12-05T03:22:19.60
IV.ATMI.HHN. ML:1.9 0.00013700000000000002 0.32 AML other m 2022-12-05T03:22:20.02
IV.MC2.EHN. ML:1.7 0.00013682075 0.2608 AML other m 2022-12-05T03:22:13.66
IV.CSP1.EHE. ML:1.7 0.00009679946050000001 0.2 AML other m 2022-12-05T03:22:15.27
IV.CSP1.EHN. ML:2.0 0.00018985934999999997 0.24 AML other m 2022-12-05T03:22:14.59
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