Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.5 on date 03-02-2021 and time 12:21:39 (Italy) in region 5 km S Gualdo Tadino (PG)

A magnitude ML 1.5 earthquake occured in region: 5 km S Gualdo Tadino (PG), on

  • 03-02-2021 11:21:39 (UTC)
  • 03-02-2021 12:21:39 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.1880, 12.7960 at 16 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
Gualdo Tadino PG 5 15208 15208
Nocera Umbra PG 8 5839 21047
Fiuminata MC 11 1402 22449
Fossato di Vico PG 12 2840 25289
Sefro MC 13 422 25711
Esanatoglia MC 14 2034 27745
Valtopina PG 15 1398 29143
Pioraco MC 15 1134 30277
Valfabbrica PG 16 3389 33666
Sigillo PG 17 2404 36070
Serravalle di Chienti MC 18 1070 37140
Fabriano AN 19 31480 68620
Matelica MC 19 9981 78601
Assisi PG 20 28299 106900

Municipalities with at least 50000 inhabitants

An earthquake occurred to
27 Km N of Foligno (57155 inhabitants)
34 Km E of Perugia (166134 inhabitants)
71 Km N of Terni (111501 inhabitants)
75 Km S of Fano (60888 inhabitants)
76 Km SW of Ancona (100861 inhabitants)
80 Km E of Arezzo (99543 inhabitants)
81 Km S of Pesaro (94582 inhabitants)
95 Km NW of Teramo (54892 inhabitants)
99 Km S of Rimini (147750 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 2021-02-03
11:21:39		 43.1878 12.7965 16 2021-07-12
16:55:08		 Bollettino Sismico Italiano INGV 89550781
Reviewed
Rev100 		ML 1.5 2021-02-03
11:21:39		 43.1857 12.7952 18 2021-02-03
11:36:22		 Sala Sismica INGV-Roma 86806091
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-02-03 11:21:39 ± 0.05
Latitude 43.1878 ± 0.0027
Longitude 12.7965 ± 0.0037
Depth (km) 16 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 89550781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 318
Semi-minor axis of confidence ellipse (meter) 61
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
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) 58
Number of associated phases, regardless of their use for origin computation 50
Number of defining phases 50
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.17
Epicentral distance of station closest to the epicenter (degree) 0.10972
Epicentral distance of station farthest from the epicenter (degree) 0.52341
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 86806091
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-02-03 11:36:22

ML:1.5

Field Value
Value 1.5
Uncertainty 0.3
Num. used stations 26
Type of magnitude ML
Reference to an origin 89550781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-04-28 08:55:50
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-02-03T11:21:57.80 0.6 undecidable manual S 112 58.0974 96 0.31 44
IV.MPAG.EHZ. 2021-02-03T11:21:55.62 0.6 undecidable manual S 357 49.0176 97 0.54 43
IV.NARO.HHZ. 2021-02-03T11:21:55.48 0.6 undecidable manual S 340 50.0166 97 0.14 46
IV.MC2.EHZ. 2021-02-03T11:21:54.15 0.6 undecidable manual S 134 44.2224 99 0.35 45
IV.ATPC.HHE. 2021-02-03T11:21:53.33 0.6 undecidable manual S 320 42.5241 99 -0.02 48
IV.ATPI.EHE. 2021-02-03T11:21:53.68 0.3 undecidable manual S 313 43.1235 99 0.16 70
IV.PIEI.HHZ. 2021-02-03T11:21:53.72 0.6 undecidable manual S 331 43.9227 99 -0.02 48
IV.ATBU.EHZ. 2021-02-03T11:21:52.43 0.6 undecidable manual S 328 37.7289 101 0.34 45
IV.CING.HNZ. 2021-02-03T11:21:52.73 0.3 undecidable manual S 57 38.3283 100 0.47 67
IV.CSP1.EHZ. 2021-02-03T11:21:51.73 0.3 undecidable manual S 108 34.743 102 0.42 67
IV.ARVD.HHZ. 2021-02-03T11:21:51.79 0.3 undecidable manual S 19 36.3414 101 0.05 73
IV.FRON.EHZ. 2021-02-03T11:21:51.67 0.3 undecidable manual S 351 37.0296 101 -0.24 69
IV.ATLO.EHE. 2021-02-03T11:21:51.49 0.3 undecidable manual S 294 34.4433 102 0.24 69
IV.MF5.EHZ. 2021-02-03T11:21:50.34 0.3 undecidable manual P 112 58.0974 96 0.47 64
IV.EL6.EHZ. 2021-02-03T11:21:50.11 0.6 undecidable manual S 57 29.2485 105 0.22 47
IV.ATSC.EHZ. 2021-02-03T11:21:49.23 0.6 undecidable manual S 341 27.6501 107 -0.25 47
IV.FDMO.HHZ. 2021-02-03T11:21:49.99 0.6 undecidable manual S 125 28.9488 106 0.18 47
IV.SSFR.HHZ. 2021-02-03T11:21:49.76 0.3 undecidable manual S 358 27.5502 107 0.3 70
IT.MTCL.HGZ. 2021-02-03T11:21:49.12 0.6 undecidable manual S 143 27.0507 107 -0.21 48
IV.MPAG.EHZ. 2021-02-03T11:21:48.35 0.6 undecidable manual P 357 49.0176 97 -0.12 46
IV.MURB.HHZ. 2021-02-03T11:21:48.68 0.6 undecidable manual S 291 23.4543 111 0.25 47
IV.NARO.HHZ. 2021-02-03T11:21:48.40 0.3 undecidable manual P 340 50.0166 97 -0.23 68
IV.ASSB.HHZ. 2021-02-03T11:21:47.48 0.3 undecidable manual S 215 19.5693 117 0 74
IV.PIEI.HHZ. 2021-02-03T11:21:47.42 0.3 undecidable manual P 331 43.9227 99 -0.28 68
IV.CESI.HHZ. 2021-02-03T11:21:47.97 0.6 undecidable manual S 157 22.1556 113 -0.12 49
IV.MC2.EHZ. 2021-02-03T11:21:47.58 0.3 undecidable manual P 134 44.2224 99 -0.16 70
IV.ATPC.HHE. 2021-02-03T11:21:47.29 0.3 undecidable manual P 320 42.5241 99 -0.19 69
IV.ATPI.EHE. 2021-02-03T11:21:47.79 0.6 undecidable manual P 313 43.1235 99 0.21 46
IV.FRON.EHZ. 2021-02-03T11:21:46.57 0.3 undecidable manual P 351 37.0296 101 -0.08 72
IV.ATBU.EHZ. 2021-02-03T11:21:46.72 0.3 undecidable manual P 328 37.7289 101 -0.03 72
IV.ATLO.EHE. 2021-02-03T11:21:46.32 0.3 undecidable manual P 294 34.4433 102 0.06 72
IV.CING.HNZ. 2021-02-03T11:21:46.81 0.3 undecidable manual P 57 38.3283 100 -0.04 72
IV.ATCC.EHZ. 2021-02-03T11:21:46.04 0.3 undecidable manual S 269 12.6762 133 0.09 74
IV.CSP1.EHZ. 2021-02-03T11:21:46.20 0.1 undecidable manual P 108 34.743 102 -0.1 95
IV.SNTG.HHZ. 2021-02-03T11:21:46.00 0.3 undecidable manual S 57 13.7751 130 -0.19 73
IV.ARVD.HHZ. 2021-02-03T11:21:46.36 0.1 undecidable manual P 19 36.3414 101 -0.18 93
IV.MML1.EHZ. 2021-02-03T11:21:46.80 0.3 undecidable manual S 120 16.3725 123 0.06 74
IV.SSFR.HHZ. 2021-02-03T11:21:45.14 0.3 undecidable manual P 358 27.5502 107 -0.09 73
IV.FOSV.EHZ. 2021-02-03T11:21:45.83 0.3 undecidable manual S 346 12.1767 134 -0.04 76
IV.EL6.EHZ. 2021-02-03T11:21:45.44 0.1 positive manual P 57 29.2485 105 -0.03 97
IV.FDMO.HHZ. 2021-02-03T11:21:45.20 0.3 undecidable manual P 125 28.9488 106 -0.23 71
IV.MURB.HHZ. 2021-02-03T11:21:44.62 0.3 undecidable manual P 291 23.4543 111 -0.02 75
IT.MTCL.HGZ. 2021-02-03T11:21:44.93 0.1 undecidable manual P 143 27.0507 107 -0.23 95
IV.ATSC.EHZ. 2021-02-03T11:21:44.96 0.1 undecidable manual P 341 27.6501 107 -0.28 93
IV.CESI.HHZ. 2021-02-03T11:21:44.30 0.3 undecidable manual P 157 22.1556 113 -0.14 73
IV.SNTG.HHZ. 2021-02-03T11:21:43.30 0.3 undecidable manual P 57 13.7751 130 -0.04 75
IV.MML1.EHZ. 2021-02-03T11:21:43.57 0.1 negative manual P 120 16.3725 123 -0.09 99
IV.FOSV.EHZ. 2021-02-03T11:21:43.07 0.1 negative manual P 346 12.1767 134 -0.08 100
IV.ASSB.HHZ. 2021-02-03T11:21:43.92 0.1 positive manual P 215 19.5693 117 -0.17 98
IV.ATCC.EHZ. 2021-02-03T11:21:43.31 0.1 undecidable manual P 269 12.6762 133 0.1 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FOSV.EHN. ML:1.5 0.000247 1.82 AML other m 2021-02-03T11:21:45.02
IV.FOSV.EHE. ML:1.4 0.0002035 1.82 AML other m 2021-02-03T11:21:46.92
IV.ATCC.EHE. ML:1.8 0.000476 0.2 AML other m 2021-02-03T11:21:46.39
IV.ATCC.EHN. ML:1.8 0.000477 0.34 AML other m 2021-02-03T11:21:46.44
IV.ASSB.HHN. ML:1.4 0.00015099999999999998 0.36 AML other m 2021-02-03T11:21:47.67
IV.CESI.HHE. ML:1.4 0.00016649999999999998 0.28 AML other m 2021-02-03T11:21:48.22
IV.ASSB.HHE. ML:1.3 0.000134 1.38 AML other m 2021-02-03T11:21:48.15
IV.MURB.HHN. ML:1.6 0.0002455 0.22 AML other m 2021-02-03T11:21:49.18
IV.CESI.HHN. ML:1.3 0.00010494999999999999 0.2 AML other m 2021-02-03T11:21:50.20
IV.SSFR.HHN. ML:1.9 0.000352 0.24 AML other m 2021-02-03T11:21:50.36
IV.SSFR.HNN. ML:2.0 0.00042300000000000004 0.24 AML other m 2021-02-03T11:21:50.24
IV.FDMO.HHN. ML:1.2 0.00008065 0.14 AML other m 2021-02-03T11:21:50.37
IV.SSFR.HHE. ML:1.9 0.0003725 0.26 AML other m 2021-02-03T11:21:50.23
IV.MURB.HHE. ML:1.6 0.00023999999999999998 0.2 AML other m 2021-02-03T11:21:50.39
IV.FDMO.HHE. ML:1.1 0.00005895 1.04 AML other m 2021-02-03T11:21:50.58
IV.EL6.EHE. ML:2.0 0.00048499999999999997 0.12 AML other m 2021-02-03T11:21:50.80
IV.EL6.EHN. ML:1.7 0.00022 0.34 AML other m 2021-02-03T11:21:50.76
IV.SSFR.HNE. ML:2.0 0.000443 1.26 AML other m 2021-02-03T11:21:50.22
IV.FRON.EHE. ML:1.2 0.00005795 0.98 AML other m 2021-02-03T11:21:52.70
IV.ARVD.HHE. ML:1.2 0.00005345 0.86 AML other m 2021-02-03T11:21:52.83
IV.ARVD.HHN. ML:1.0 0.00003685 1.02 AML other m 2021-02-03T11:21:52.23
IV.FRON.EHN. ML:1.4 0.0000847 0.94 AML other m 2021-02-03T11:21:52.43
IV.PIEI.HHN. ML:1.1 0.0000412 0.88 AML other m 2021-02-03T11:21:54.01
IV.PIEI.HHE. ML:1.4 0.00007435 0.14 AML other m 2021-02-03T11:21:54.30
IV.NRCA.HHN. ML:1.6 0.00011199999999999998 1 AML other m 2021-02-03T11:21:55.26
IV.NRCA.HHE. ML:1.6 0.000118 0.1 AML other m 2021-02-03T11:21:55.87
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