Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.0 on date 13-04-2021 and time 04:01:58 (Italy) in region 4 km SW Valfabbrica (PG)

A magnitude ML 2.0 earthquake occured in region: 4 km SW Valfabbrica (PG), on

  • 13-04-2021 02:01:58 (UTC)
  • 13-04-2021 04:01:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1360, 12.5670 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
Valfabbrica PG 4 3389 3389
Bastia Umbra PG 8 21874 25263
Assisi PG 8 28299 53562
Perugia PG 15 166134 219696
Bettona PG 15 4367 224063
Cannara PG 16 4305 228368
Torgiano PG 16 6725 235093
Valtopina PG 18 1398 236491
Spello PG 18 8645 245136
Nocera Umbra PG 18 5839 250975

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Perugia (166134 inhabitants)
23 Km NW of Foligno (57155 inhabitants)
64 Km N of Terni (111501 inhabitants)
67 Km SE of Arezzo (99543 inhabitants)
87 Km SW of Fano (60888 inhabitants)
88 Km NE of Viterbo (67173 inhabitants)
91 Km SW of Pesaro (94582 inhabitants)
94 Km SW of Ancona (100861 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 2021-04-13
02:01:58		 43.1355 12.5667 8 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 90893401
Reviewed
Rev100 		ML 2.0 2021-04-13
02:01:58		 43.1305 12.5563 9 2021-04-13
02:08:23		 Sala Sismica INGV-Roma 89047151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-13 02:01:58 ± 0.05
Latitude 43.1355 ± 0.0027
Longitude 12.5667 ± 0.0037
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 90893401

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 372
Semi-minor axis of confidence ellipse (meter) 61
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 227
Circular confidence region, given by single value of horizontal uncertainty (meter) 370.0
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 68
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.75453
Number of stations at which the event was observed 39
Number of stations from which data was used for origin computation 33
Magnitudes information

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 89047151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-13 02:08:23

ML:2.0

Field Value
Value 2.0
Uncertainty 0.3
Num. used stations 48
Type of magnitude ML
Reference to an origin 90893401
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 11:08:53
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2021-04-13T02:02:55.20 3.0 undecidable manual Pg 12.15 0
IV.FREG.EHZ. 2021-04-13T02:02:46.66 3.0 undecidable manual Pg 5.87 0
OT.OT14.EHZ. 2021-04-13T02:02:38.17 3.0 negative manual Pg 4.98 0
IV.LRP.EHZ. 2021-04-13T02:02:36.55 3.0 undecidable manual Sn -0.18 0
IV.PAOL.HHZ. 2021-04-13T02:02:33.63 3.0 undecidable manual Pn 2.97 0
IV.PTRJ.HHZ. 2021-04-13T02:02:24.33 3.0 undecidable manual Pn -2.36 0
IV.LRP.EHZ. 2021-04-13T02:02:19.87 3.0 undecidable manual Pn 1.45 0
IV.MMO1.EHZ. 2021-04-13T02:02:19.94 0.3 undecidable manual S 113 66.9774 50 0.46 64
IV.NRCA.HHZ. 2021-04-13T02:02:16.71 0.6 undecidable manual S 127 55.5999 50 0.26 45
IV.ARVD.HHZ. 2021-04-13T02:02:15.18 0.6 undecidable manual S 37 50.3163 50 0.15 47
IV.APEC.HHZ. 2021-04-13T02:02:15.15 0.6 undecidable manual S 346 48.4182 50 0.63 41
IV.CSP1.EHZ. 2021-04-13T02:02:15.79 0.3 undecidable manual S 95 51.9036 50 0.34 67
IV.BADI.EHE. 2021-04-13T02:02:15.32 0.6 undecidable manual S 328 49.0176 50 0.65 41
IV.NARO.HHZ. 2021-04-13T02:02:15.70 0.6 undecidable manual S 1 52.7028 50 0.02 48
IV.MNTT.EHZ. 2021-04-13T02:02:14.10 0.1 undecidable manual P 95 83.7495 50 0.9 69
IV.EL6.EHZ. 2021-04-13T02:02:14.81 0.6 undecidable manual S 63 48.3183 50 0.32 45
IV.FRON.EHZ. 2021-04-13T02:02:13.22 0.6 undecidable manual S 17 44.3223 50 -0.2 47
IV.FDMO.HHZ. 2021-04-13T02:02:13.19 0.3 undecidable manual S 104 43.623 50 -0.04 73
IV.PIEI.HHZ. 2021-04-13T02:02:13.52 0.6 undecidable manual S 357 44.4222 50 0.05 48
IV.MF5.EHZ. 2021-04-13T02:02:12.24 0.1 undecidable manual P 102 74.1702 50 0.51 83
IV.ATPC.HHE. 2021-04-13T02:02:12.55 0.6 undecidable manual S 347 39.3273 50 0.46 45
IV.ATPI.EHZ. 2021-04-13T02:02:11.42 0.6 undecidable manual S 339 37.4292 50 -0.16 48
IV.ATBU.EHZ. 2021-04-13T02:02:11.73 0.6 undecidable manual S 358 37.7289 50 0.05 49
IT.MTCL.HGZ. 2021-04-13T02:02:11.51 0.6 undecidable manual S 114 38.4282 50 -0.35 46
IV.SSFR.HHZ. 2021-04-13T02:02:11.47 0.6 undecidable manual S 27 37.629 50 -0.17 48
IV.MOMA.HNZ. 2021-04-13T02:02:11.60 0.6 undecidable manual S 180 36.8298 50 0.18 48
IV.MML1.HNE. 2021-04-13T02:02:10.11 0.6 undecidable manual S 94 32.8449 104 -0.15 48
IV.COR1.EHZ. 2021-04-13T02:02:10.42 1.0 undecidable manual P 32 65.1903 50 0.08 23
IV.SNTG.HHZ. 2021-04-13T02:02:10.29 0.3 undecidable manual S 66 33.0447 104 -0.01 75
IV.MMO1.EHZ. 2021-04-13T02:02:10.40 0.1 undecidable manual P 113 66.9774 50 -0.21 90
IV.ATMI.HHZ. 2021-04-13T02:02:09.94 0.6 undecidable manual S 313 32.6451 104 -0.25 47
IV.CESI.HHZ. 2021-04-13T02:02:09.10 0.6 undecidable manual S 118 30.9468 105 -0.52 45
IV.TB03.DHZ.01 2021-04-13T02:02:09.99 0.6 undecidable manual S 337 32.0457 104 0 50
IV.ATVA.EHE. 2021-04-13T02:02:08.16 0.6 undecidable manual S 305 27.75 106 -0.38 47
IV.CAFI.HHZ. 2021-04-13T02:02:08.50 0.1 undecidable manual P 294 53.1024 50 0.03 96
IV.NRCA.HHZ. 2021-04-13T02:02:08.63 0.1 undecidable manual P 127 55.5999 50 -0.23 91
IV.CSP1.EHZ. 2021-04-13T02:02:08.15 0.1 undecidable manual P 95 51.9036 50 -0.14 94
IV.NARO.HHZ. 2021-04-13T02:02:08.16 0.3 undecidable manual P 1 52.7028 50 -0.26 68
IV.EL6.EHZ. 2021-04-13T02:02:07.46 1.0 undecidable manual P 63 48.3183 50 -0.27 23
IV.ARVD.HHZ. 2021-04-13T02:02:07.85 0.1 positive manual P 37 50.3163 50 -0.2 93
IV.ATLO.EHE. 2021-04-13T02:02:07.46 0.6 undecidable manual S 327 23.754 109 0.25 48
IV.APEC.HHZ. 2021-04-13T02:02:07.81 0.3 undecidable manual P 346 48.4182 50 0.06 72
IV.BADI.EHE. 2021-04-13T02:02:07.63 0.1 undecidable manual P 328 49.0176 50 -0.21 93
IV.MGAB.HHZ. 2021-04-13T02:02:07.14 0.1 undecidable manual P 236 44.4222 50 0.01 97
IT.FOPC.HGN. 2021-04-13T02:02:06.74 0.6 undecidable manual S 149 21.4674 111 0.27 48
IV.ATPC.HHE. 2021-04-13T02:02:06.28 0.1 undecidable manual P 347 39.3273 50 -0.07 97
IV.PIEI.HHZ. 2021-04-13T02:02:06.95 0.3 undecidable manual P 357 44.4222 50 -0.19 70
IV.ATBU.EHZ. 2021-04-13T02:02:06.08 0.1 undecidable manual P 358 37.7289 50 -0.03 98
IT.MTCL.HGZ. 2021-04-13T02:02:06.09 0.3 undecidable manual P 114 38.4282 50 -0.12 72
IV.FRON.EHZ. 2021-04-13T02:02:06.77 0.1 undecidable manual P 17 44.3223 50 -0.35 91
IV.FDMO.HHZ. 2021-04-13T02:02:06.69 0.1 undecidable manual P 104 43.623 50 -0.32 92
IV.MOMA.HNZ. 2021-04-13T02:02:05.89 0.3 undecidable manual P 180 36.8298 50 -0.07 73
IV.TB03.DHZ.01 2021-04-13T02:02:05.02 0.1 undecidable manual P 337 32.0457 104 -0.11 98
IV.ATMI.HHZ. 2021-04-13T02:02:05.30 0.3 undecidable manual P 313 32.6451 104 0.05 74
IV.MML1.HNE. 2021-04-13T02:02:05.07 0.1 undecidable manual P 94 32.8449 104 -0.22 95
IV.ATPI.EHZ. 2021-04-13T02:02:05.77 0.1 undecidable manual P 339 37.4292 50 -0.28 93
IV.SNTG.HHZ. 2021-04-13T02:02:05.16 0.1 undecidable manual P 66 33.0447 104 -0.16 97
IV.SSFR.HHZ. 2021-04-13T02:02:05.77 0.3 undecidable manual P 27 37.629 50 -0.32 69
IV.CESI.HHZ. 2021-04-13T02:02:04.67 0.1 undecidable manual P 118 30.9468 105 -0.25 95
IV.MURB.HHZ. 2021-04-13T02:02:04.92 0.6 undecidable manual S 347 14.5743 119 0.63 44
IV.ATVA.EHE. 2021-04-13T02:02:04.19 0.1 undecidable manual P 305 27.75 106 -0.1 99
IV.ASSB.HHZ. 2021-04-13T02:02:03.82 0.3 undecidable manual S 144 12.6762 123 0.07 76
IT.FOPC.HGN. 2021-04-13T02:02:03.26 0.1 undecidable manual P 149 21.4674 111 0.16 99
IV.ATLO.EHE. 2021-04-13T02:02:03.62 0.1 undecidable manual P 327 23.754 109 0.09 100
IV.MURB.HHZ. 2021-04-13T02:02:02.19 0.1 positive manual P 347 14.5743 119 0.34 96
IV.ATCC.EHZ. 2021-04-13T02:02:02.58 0.6 undecidable manual S 47 8.0808 135 0.08 51
IV.ATCC.EHZ. 2021-04-13T02:02:01.01 0.1 undecidable manual P 47 8.0808 135 0.2 100
IV.ASSB.HHZ. 2021-04-13T02:02:01.69 0.1 positive manual P 144 12.6762 123 0.16 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:2.6 0.0069299999999999995 0.32 AML other m 2021-04-13T02:02:03.22
IV.ATCC.EHE. ML:2.5 0.005885 0.54 AML other m 2021-04-13T02:02:03.44
IV.ASSB.HHN. ML:2.0 0.0011149999999999999 0.72 AML other m 2021-04-13T02:02:04.21
IV.ASSB.HHE. ML:1.9 0.000993 0.82 AML other m 2021-04-13T02:02:04.34
IV.MURB.HHN. ML:2.7 0.0055899999999999995 0.24 AML other m 2021-04-13T02:02:06.56
IV.MURB.HNN. ML:2.6 0.0046749999999999995 0.22 AML other m 2021-04-13T02:02:06.57
IV.MURB.HHE. ML:2.6 0.004525 0.28 AML other m 2021-04-13T02:02:06.67
IV.MURB.HNE. ML:2.7 0.00491 0.26 AML other m 2021-04-13T02:02:06.68
IV.CESI.HHE. ML:1.9 0.0003615 0.36 AML other m 2021-04-13T02:02:09.91
IV.SNTG.HNE. ML:2.1 0.0005505 0.4 AML other m 2021-04-13T02:02:10.50
IV.SNTG.HNN. ML:1.9 0.00038250000000000003 0.8 AML other m 2021-04-13T02:02:11.66
IV.SSFR.HNE. ML:2.3 0.0008075 0.18 AML other m 2021-04-13T02:02:12.67
IV.SSFR.HHE. ML:2.3 0.0007545 0.2 AML other m 2021-04-13T02:02:12.67
IV.CESI.HHN. ML:1.8 0.000272 0.32 AML other m 2021-04-13T02:02:12.95
IV.SSFR.HHN. ML:2.2 0.0005525 0.2 AML other m 2021-04-13T02:02:12.86
IV.SSFR.HNN. ML:2.2 0.0006085 0.24 AML other m 2021-04-13T02:02:12.99
IV.ATMI.HHN. ML:2.0 0.00047250000000000005 1.26 AML other m 2021-04-13T02:02:12.87
IV.ATMI.HHE. ML:2.0 0.000397 0.4 AML other m 2021-04-13T02:02:13.26
IV.ATPI.EHN. ML:1.6 0.0001565 1 AML other m 2021-04-13T02:02:13.80
IV.FDMO.HHN. ML:1.8 0.000189 0.42 AML other m 2021-04-13T02:02:13.52
IV.FRON.EHE. ML:1.8 0.000187 0.6 AML other m 2021-04-13T02:02:13.67
IV.FDMO.HHE. ML:1.8 0.000176 0.68 AML other m 2021-04-13T02:02:13.81
IV.ATPI.EHE. ML:1.5 0.00011875 1 AML other m 2021-04-13T02:02:14.37
IV.PIEI.HHE. ML:1.9 0.0002655 0.24 AML other m 2021-04-13T02:02:14.58
IV.PIEI.HHN. ML:1.8 0.000202 0.32 AML other m 2021-04-13T02:02:14.84
IV.FRON.EHN. ML:1.8 0.0002045 1.62 AML other m 2021-04-13T02:02:15.00
IV.EL6.EHN. ML:2.0 0.00027350000000000003 0.54 AML other m 2021-04-13T02:02:15.60
IV.CSP1.EHN. ML:2.3 0.0004995 1.68 AML other m 2021-04-13T02:02:16.14
IV.ARVD.HHE. ML:2.0 0.000241 0.48 AML other m 2021-04-13T02:02:16.01
IV.ARVD.HHN. ML:1.8 0.0001665 0.12 AML other m 2021-04-13T02:02:16.32
IV.MGAB.HHE. ML:2.2 0.00047750000000000006 0.46 AML other m 2021-04-13T02:02:16.27
IV.MGAB.HNE. ML:2.2 0.00046300000000000003 0.46 AML other m 2021-04-13T02:02:16.28
IV.APEC.HHN. ML:1.7 0.00015150000000000002 0.26 AML other m 2021-04-13T02:02:16.30
IV.EL6.EHE. ML:2.2 0.00038749999999999993 0.28 AML other m 2021-04-13T02:02:16.57
IV.NARO.HHN. ML:1.5 0.0000767 0.32 AML other m 2021-04-13T02:02:16.42
IV.NARO.HHE. ML:1.6 0.0000906 0.22 AML other m 2021-04-13T02:02:16.71
IV.MGAB.HHN. ML:2.1 0.000421 0.76 AML other m 2021-04-13T02:02:17.46
IV.MGAB.HNN. ML:2.1 0.00042300000000000004 0.76 AML other m 2021-04-13T02:02:17.47
IV.CSP1.EHE. ML:2.2 0.00040800000000000005 0.52 AML other m 2021-04-13T02:02:17.09
IV.CAFI.HHE. ML:1.6 0.0000945 0.56 AML other m 2021-04-13T02:02:17.97
IV.NRCA.HHN. ML:1.9 0.000195 1.66 AML other m 2021-04-13T02:02:17.12
IV.CAFI.HHN. ML:1.6 0.0000902 0.44 AML other m 2021-04-13T02:02:18.08
IV.APEC.HHE. ML:1.8 0.0001605 0.46 AML other m 2021-04-13T02:02:18.98
IV.NRCA.HHE. ML:1.7 0.00010985 1.02 AML other m 2021-04-13T02:02:19.42
IV.COR1.EHN. ML:2.3 0.00034 0.42 AML other m 2021-04-13T02:02:21.97
IV.COR1.EHE. ML:2.0 0.0001983 0.7 AML other m 2021-04-13T02:02:34.40
IV.LRP.EHE. ML:2.5 0.00010600000000000002 1.04 AML other m 2021-04-13T02:02:45.31
IV.LRP.EHN. ML:1.9 0.000028899999999999998 0.7 AML other m 2021-04-13T02:02:55.78
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
Waveforms Seismic signals in miniseed + resp format Download