Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 23-12-2021 and time 06:55:41 (UTC) in region 5 km N Costacciaro (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km N Costacciaro (PG), on

  • 23-12-2021 06:55:41 (UTC)
  • 23-12-2021 07:55:41 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4010, 12.7280 at 14 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
Costacciaro PG 5 1216 1216
Scheggia e Pascelupo PG 5 1393 2609
Sigillo PG 8 2404 5013
Serra Sant'Abbondio PU 11 1027 6040
Sassoferrato AN 11 7285 13325
Cantiano PU 12 2245 15570
Fossato di Vico PG 12 2840 18410
Frontone PU 13 1300 19710
Gubbio PG 13 32216 51926
Fabriano AN 16 31480 83406
Genga AN 17 1797 85203
Cagli PU 18 8731 93934
Gualdo Tadino PG 19 15208 109142

Municipalities with at least 50000 inhabitants

An earthquake occurred to
43 Km NE of Perugia (166134 inhabitants)
49 Km N of Foligno (57155 inhabitants)
55 Km SW of Fano (60888 inhabitants)
59 Km S of Pesaro (94582 inhabitants)
68 Km W of Ancona (100861 inhabitants)
69 Km E of Arezzo (99543 inhabitants)
75 Km S of Rimini (147750 inhabitants)
91 Km SE of Cesena (96758 inhabitants)
94 Km N of Terni (111501 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 1.5 2021-12-23
06:55:41		 43.401 12.728 14 2022-03-30
13:04:42		 Bollettino Sismico Italiano INGV 102366891
Reviewed
Rev100 		ML 1.4 2021-12-23
06:55:41		 43.4028 12.7285 14 2021-12-23
07:05:46		 Sala Sismica INGV-Roma 98842261
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-12-23 06:55:41 ± 0.04
Latitude 43.4010 ± 0.0027
Longitude 12.7280 ± 0.0025
Depth (km) 14 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 102366891

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 249
Semi-minor axis of confidence ellipse (meter) 80
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 186
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) 42
Number of associated phases, regardless of their use for origin computation 46
Number of defining phases 46
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0.03777
Epicentral distance of station farthest from the epicenter (degree) 0.67449
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 27
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 53
Type of magnitude ML
Reference to an origin 102366891
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2022-03-25 14:19:19

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 39
Type of magnitude ML
Reference to an origin 98842261
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-12-23 07:05:46
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-12-23T06:55:55.79 0.6 undecidable manual P 128 74.8695 93 1.6 23
IV.NRCA.HHZ. 2021-12-23T06:55:53.37 0.3 undecidable manual P 153 70.2741 93 -0.12 65
IV.MOMA.HHE. 2021-12-23T06:55:53.15 0.6 undecidable manual P 191 67.4769 93 0.1 44
IV.APEC.HHZ. 2021-12-23T06:55:52.40 0.6 undecidable manual S 305 30.3474 100 0.56 42
IV.EL6.EHZ. 2021-12-23T06:55:52.60 0.6 undecidable manual S 105 31.1466 99 0.54 43
IV.ATPI.EHZ. 2021-12-23T06:55:51.00 0.6 undecidable manual S 282 26.8509 102 0.08 48
IV.CSP1.EHZ. 2021-12-23T06:55:50.56 0.3 undecidable manual P 132 51.6039 94 -0.05 69
IV.TB02.DHN.01 2021-12-23T06:55:50.80 0.6 undecidable manual S 263 25.9518 102 0.12 47
IV.NARO.HHZ. 2021-12-23T06:55:50.60 0.6 undecidable manual S 333 26.1516 102 -0.14 47
IV.ATCC.EHZ. 2021-12-23T06:55:50.70 0.6 undecidable manual S 197 24.9528 103 0.26 46
IV.ATPC.HHN. 2021-12-23T06:55:50.10 0.6 undecidable manual S 292 23.5542 105 0.03 48
IV.ATLO.EHE. 2021-12-23T06:55:50.80 0.6 undecidable manual S 250 27.5502 101 -0.31 45
IV.TB03.DHZ. 2021-12-23T06:55:50.80 0.6 undecidable manual S 270 25.5522 103 0.2 47
IV.MURB.HHZ. 2021-12-23T06:55:50.00 0.6 undecidable manual S 227 22.4553 106 0.22 47
IV.FDMO.HHZ. 2021-12-23T06:55:50.11 0.3 undecidable manual P 144 49.8168 95 -0.22 66
IV.MPAG.EHZ. 2021-12-23T06:55:50.70 0.6 undecidable manual S 6 25.4523 103 0.14 47
IV.SNTG.HHZ. 2021-12-23T06:55:50.10 0.6 undecidable manual S 133 23.5542 105 0.02 49
IV.ARVD.HHZ. 2021-12-23T06:55:49.30 0.6 undecidable manual S 58 20.2686 109 0.06 48
IV.CESI.HHE. 2021-12-23T06:55:49.65 0.3 undecidable manual P 162 46.2204 95 -0.13 68
IV.MMUR.HNZ. 2021-12-23T06:55:49.80 0.6 undecidable manual S 78 22.1556 106 0.09 48
IV.ASSB.HHZ. 2021-12-23T06:55:48.63 0.3 undecidable manual P 188 40.1265 96 -0.22 68
IV.MML1.EHZ. 2021-12-23T06:55:48.29 0.3 undecidable manual P 148 37.4292 97 -0.16 69
IV.EL6.EHZ. 2021-12-23T06:55:47.41 0.1 undecidable manual P 105 31.1466 99 -0.07 95
IV.FRON.EHZ. 2021-12-23T06:55:47.30 0.6 undecidable manual S 359 12.9759 126 -0.19 48
IV.ATFO.HHZ. 2021-12-23T06:55:47.60 0.6 undecidable manual S 253 13.1757 125 0.06 49
IV.FOSV.EHZ. 2021-12-23T06:55:47.20 0.3 undecidable manual S 167 12.0768 128 -0.1 73
IV.APEC.HHZ. 2021-12-23T06:55:47.55 0.3 undecidable manual P 305 30.3474 100 0.2 69
IV.SNTG.HHZ. 2021-12-23T06:55:46.24 0.1 undecidable manual P 133 23.5542 105 -0.1 95
IV.ATPI.EHZ. 2021-12-23T06:55:46.60 0.3 undecidable manual P 282 26.8509 102 -0.22 69
IV.SSFR.HHZ. 2021-12-23T06:55:46.20 0.3 undecidable manual S 48 5.8941 152 -0.03 75
IV.NARO.HHZ. 2021-12-23T06:55:46.52 0.3 undecidable manual P 333 26.1516 102 -0.2 70
IV.ATPC.HHN. 2021-12-23T06:55:46.23 0.1 undecidable manual P 292 23.5542 105 -0.1 95
IV.TB02.DHN.01 2021-12-23T06:55:46.66 0.3 undecidable manual P 263 25.9518 102 -0.02 72
IV.ATSC.EHE. 2021-12-23T06:55:46.00 0.6 undecidable manual S 307 4.1958 159 -0.05 50
IV.ATCC.EHZ. 2021-12-23T06:55:46.54 0.1 undecidable manual P 197 24.9528 103 0 97
IV.MURB.HHZ. 2021-12-23T06:55:46.37 0.1 undecidable manual P 227 22.4553 106 0.2 94
IV.ATLO.EHE. 2021-12-23T06:55:46.93 0.3 undecidable manual P 250 27.5502 101 0 72
IV.MMUR.HNZ. 2021-12-23T06:55:46.11 0.3 undecidable manual P 78 22.1556 106 -0.02 73
IV.TB03.DHZ. 2021-12-23T06:55:46.58 0.1 undecidable manual P 270 25.5522 103 -0.06 96
IV.MPAG.EHZ. 2021-12-23T06:55:46.51 0.1 undecidable manual P 6 25.4523 103 -0.1 95
IV.ARVD.HHZ. 2021-12-23T06:55:45.82 0.1 undecidable manual P 58 20.2686 109 -0.03 98
IV.SSFR.HHZ. 2021-12-23T06:55:44.15 0.1 undecidable manual P 48 5.8941 152 0.04 100
IV.FRON.EHZ. 2021-12-23T06:55:44.75 0.3 undecidable manual P 359 12.9759 126 -0.09 73
IV.ATSC.EHE. 2021-12-23T06:55:44.04 0.1 undecidable manual P 307 4.1958 159 0.03 100
IV.FOSV.EHZ. 2021-12-23T06:55:44.69 0.1 undecidable manual P 167 12.0768 128 -0.04 98
IV.ATFO.HHZ. 2021-12-23T06:55:44.90 0.1 undecidable manual P 253 13.1757 125 0.03 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SSFR.HHE. ML:1.7 0.0005522185 0.08 AML other m 2021-12-23T06:55:46.45
IV.SSFR.HNE. ML:2.0 0.00108931335 0.0512 AML other m 2021-12-23T06:55:46.54
IV.SSFR.HNN. ML:2.0 0.0011032190000000001 0.0576 AML other m 2021-12-23T06:55:46.61
IV.SSFR.HHN. ML:1.7 0.0006305366999999999 0.1216 AML other m 2021-12-23T06:55:46.66
IV.FOSV.HNN. ML:1.6 0.0003655 0.16 AML other m 2021-12-23T06:55:47.42
IV.FOSV.EHN. ML:1.6 0.0003605 0.14 AML other m 2021-12-23T06:55:47.42
IV.FOSV.HNE. ML:1.5 0.00032217519999999997 0.08 AML other m 2021-12-23T06:55:47.35
IV.FOSV.EHE. ML:1.5 0.00031953045000000004 0.08 AML other m 2021-12-23T06:55:47.36
IV.FRON.EHN. ML:1.7 0.0004974342 0.1216 AML other m 2021-12-23T06:55:47.59
IV.ATFO.HHN. ML:1.4 0.000218399 1.9008 AML other m 2021-12-23T06:55:47.02
IV.ATFO.HNN. ML:1.4 0.00022283575 1.8912 AML other m 2021-12-23T06:55:47.03
IV.ATFO.HNE. ML:1.5 0.00025522125 0.0992 AML other m 2021-12-23T06:55:48.14
IV.FRON.EHE. ML:1.4 0.0002223579 0.0608 AML other m 2021-12-23T06:55:48.12
IV.ATFO.HHE. ML:1.6 0.00033183275 0.24 AML other m 2021-12-23T06:55:48.27
IV.SNTG.HNE. ML:1.3 0.00010686584999999999 0.6912 AML other m 2021-12-23T06:55:48.05
IV.APEC.HNN. ML:2.9 0.0033601535 0.608 AML other m 2021-12-23T06:55:49.52
IV.ARVD.HHN. ML:1.6 0.00029 0.12 AML other m 2021-12-23T06:55:49.57
IV.ARVD.HHE. ML:1.6 0.00023487625 0.1184 AML other m 2021-12-23T06:55:49.83
IV.MURB.HNE. ML:1.9 0.0005125982 0.32 AML other m 2021-12-23T06:55:50.52
IV.MPAG.HNN. ML:1.6 0.00021352635 0.6112 AML other m 2021-12-23T06:55:50.67
IV.MPAG.HNE. ML:1.7 0.0002495345 0.6016 AML other m 2021-12-23T06:55:50.67
IV.MURB.HHE. ML:1.9 0.0005455 0.3 AML other m 2021-12-23T06:55:50.52
IV.MURB.HNN. ML:1.8 0.00035850000000000004 0.32 AML other m 2021-12-23T06:55:50.33
IV.MURB.HHN. ML:1.9 0.00044592335 0.32 AML other m 2021-12-23T06:55:50.34
IV.SNTG.HNN. ML:1.5 0.0001930522 0.1888 AML other m 2021-12-23T06:55:50.77
IV.SNTG.HHN. ML:1.5 0.0001875 0.18 AML other m 2021-12-23T06:55:50.68
IV.ATCC.HNN. ML:1.5 0.000158024315 0.1312 AML other m 2021-12-23T06:55:50.81
IV.MPAG.EHN. ML:0.9 0.000044706405 0.16 AML other m 2021-12-23T06:55:50.85
IV.NARO.HHE. ML:1.6 0.000207109 0.08 AML other m 2021-12-23T06:55:50.89
IV.NARO.HHN. ML:1.3 0.0001057475 0.08 AML other m 2021-12-23T06:55:51.09
IV.SNTG.HHE. ML:1.2 0.00008435870500000001 0.1792 AML other m 2021-12-23T06:55:51.24
IV.ATPI.EHN. ML:0.9 0.000041677215 0.2816 AML other m 2021-12-23T06:55:51.39
IV.MPAG.EHE. ML:0.9 0.00004472756 0.1984 AML other m 2021-12-23T06:55:51.28
IV.ATCC.EHE. ML:1.5 0.00017902135 0.16 AML other m 2021-12-23T06:55:51.48
IV.ATCC.EHN. ML:1.4 0.0001287127 0.1184 AML other m 2021-12-23T06:55:51.57
IV.ATCC.HNE. ML:1.6 0.00019892585000000002 0.1312 AML other m 2021-12-23T06:55:51.64
IV.ATPI.EHE. ML:1.1 0.00006228102 0.24 AML other m 2021-12-23T06:55:51.85
IV.APEC.HHE. ML:1.4 0.00010390274 0.1792 AML other m 2021-12-23T06:55:52.80
IV.APEC.HHN. ML:1.2 0.00007022048000000001 0.1408 AML other m 2021-12-23T06:55:53.08
IV.MML1.EHN. ML:1.3 0.0000766 0.28 AML other m 2021-12-23T06:55:54.20
IV.MML1.EHE. ML:1.4 0.00007965 0.46 AML other m 2021-12-23T06:55:54.22
IV.FDMO.HHE. ML:1.2 0.00004185263 0.1408 AML other m 2021-12-23T06:55:58.23
IV.FDMO.HHN. ML:1.2 0.00004040753499999999 0.1408 AML other m 2021-12-23T06:55:58.53
IV.MML1.HNN. ML:1.6 0.00014214339999999998 0.8896 AML other m 2021-12-23T06:56:01.47
IV.NRCA.HHN. ML:1.3 0.00003715 1.04 AML other m 2021-12-23T06:56:04.34
IV.MF5.EHE. ML:2.0 0.000135 0.42 AML other m 2021-12-23T06:56:04.40
IV.NRCA.HHE. ML:1.3 0.000036500000000000006 1.88 AML other m 2021-12-23T06:56:06.04
IV.ATPI.HNE. ML:1.4 0.00013737805 0.8896 AML other m 2021-12-23T06:56:07.98
IV.MML1.HNE. ML:1.4 0.00010098335 0.8896 AML other m 2021-12-23T06:56:10.82
IV.ATPI.HNN. ML:1.5 0.00016996365 1.0016 AML other m 2021-12-23T06:56:11.38
IV.APEC.HNE. ML:2.2 0.0007932973 1.072 AML other m 2021-12-23T06:56:15.58
IV.MF5.EHN. ML:1.8 0.0000989 0.42 AML other m 2021-12-23T06:56:17.42
IV.EL6.EHE. ML:1.3 0.00009102918 0.2816 AML other m 2021-12-23T06:56:18.19
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