Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.2 on date 13-04-2021 and time 14:53:27 (Italy) in region 4 km SW Valfabbrica (PG)

A magnitude ML 2.2 earthquake occured in region: 4 km SW Valfabbrica (PG), on

  • 13-04-2021 12:53:27 (UTC)
  • 13-04-2021 14:53:27 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1390, 12.5700 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 16 4367 224063
Cannara PG 16 4305 228368
Torgiano PG 17 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)
65 Km N of Terni (111501 inhabitants)
67 Km SE of Arezzo (99543 inhabitants)
86 Km SW of Fano (60888 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
90 Km SW of Pesaro (94582 inhabitants)
93 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 2.2 2021-04-13
12:53:27		 43.1393 12.5697 8 2021-07-12
16:55:14		 Bollettino Sismico Italiano INGV 90894571
Reviewed
Rev100 		ML 2.2 2021-04-13
12:53:27		 43.1388 12.5688 8 2021-04-13
13:18:53		 Sala Sismica INGV-Roma 89059991
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-13 12:53:27 ± 0.05
Latitude 43.1393 ± 0.0027
Longitude 12.5697 ± 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 90894571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 297
Semi-minor axis of confidence ellipse (meter) 109
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 51
Circular confidence region, given by single value of horizontal uncertainty (meter) 300.0
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 76
Number of defining phases 76
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0.06835
Epicentral distance of station farthest from the epicenter (degree) 0.75273
Number of stations at which the event was observed 41
Number of stations from which data was used for origin computation 41
Magnitudes information

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 89059991
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-13 13:18:53

ML:2.2

Field Value
Value 2.2
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 90894571
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-06-15 12:39:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.LNSS.HHZ. 2021-04-13T12:53:50.73 0.3 undecidable manual S 147 70.7736 50 0.77 56
IV.MMO1.EHZ. 2021-04-13T12:53:49.42 0.3 undecidable manual S 113 66.9774 50 0.49 63
IV.NRCA.HHZ. 2021-04-13T12:53:46.27 0.6 undecidable manual S 127 55.6998 50 0.33 44
IV.GAVE.EHZ. 2021-04-13T12:53:46.68 0.3 undecidable manual S 152 56.1993 50 0.62 61
IV.MPAG.EHZ. 2021-04-13T12:53:46.50 0.6 undecidable manual S 16 56.3991 50 0.36 44
IV.CSP1.EHZ. 2021-04-13T12:53:45.32 0.6 undecidable manual S 96 51.7038 50 0.45 44
IV.CAFI.HHZ. 2021-04-13T12:53:45.53 0.3 undecidable manual S 294 53.1024 50 0.28 68
IV.ARVD.HHZ. 2021-04-13T12:53:44.67 0.3 undecidable manual S 37 49.8168 50 0.3 68
IV.NARO.HHZ. 2021-04-13T12:53:44.96 0.3 undecidable manual S 1 52.3032 50 -0.07 71
IV.EL6.EHZ. 2021-04-13T12:53:44.15 0.3 undecidable manual S 64 47.9187 50 0.3 68
IV.BADI.EHN. 2021-04-13T12:53:44.67 0.6 undecidable manual S 328 48.7179 50 0.59 42
IV.PIEI.HHZ. 2021-04-13T12:53:43.05 0.6 undecidable manual S 356 44.0226 50 0.22 46
IV.MNTT.EHZ. 2021-04-13T12:53:43.53 0.3 negative manual P 96 83.5497 50 0.92 51
IV.MGAB.HHZ. 2021-04-13T12:53:43.08 0.3 undecidable manual S 236 44.8218 50 0.04 72
IV.FRON.EHZ. 2021-04-13T12:53:42.62 0.3 undecidable manual S 17 43.8228 50 -0.14 71
IV.FDMO.HHZ. 2021-04-13T12:53:42.69 0.3 undecidable manual S 105 43.4232 50 0.02 73
IV.CRE.HHZ. 2021-04-13T12:53:41.93 0.6 positive manual P 317 72.8715 50 0.96 34
IV.ATBU.HNN. 2021-04-13T12:53:41.47 0.3 undecidable manual S 357 37.3293 50 0.43 67
IT.MTCL.HGZ. 2021-04-13T12:53:41.04 0.3 undecidable manual S 115 38.4282 50 -0.28 70
IV.ATPC.HNN. 2021-04-13T12:53:41.57 0.3 undecidable manual S 347 38.9277 50 0.11 72
IV.ATMI.HHZ. 2021-04-13T12:53:40.36 0.3 undecidable manual S 312 32.5452 104 0.82 59
IV.PARC.HHZ. 2021-04-13T12:53:40.05 0.6 negative manual P 335 62.493 50 0.69 39
IV.SSFR.HNE. 2021-04-13T12:53:40.87 0.6 undecidable manual S 27 37.1295 50 -0.11 48
IT.GNU.HGE. 2021-04-13T12:53:40.74 0.3 undecidable manual S 180 37.2294 50 -0.27 70
IV.ATPI.EHZ. 2021-04-13T12:53:40.69 0.6 undecidable manual S 339 37.0296 50 -0.28 46
IV.LNSS.HHZ. 2021-04-13T12:53:40.37 0.1 undecidable manual P 147 70.7736 50 -0.27 88
IV.MOMA.HHZ. 2021-04-13T12:53:40.98 0.3 undecidable manual S 180 37.2294 50 -0.02 73
IV.MML1.HNE. 2021-04-13T12:53:39.56 0.3 undecidable manual S 95 32.6451 104 -0.02 74
IV.SNTG.HHZ. 2021-04-13T12:53:39.55 0.6 undecidable manual S 67 32.6451 104 -0.01 50
IV.MMO1.EHZ. 2021-04-13T12:53:39.96 0.3 negative manual P 113 66.9774 50 -0.09 69
IV.CESX.HHZ. 2021-04-13T12:53:39.49 0.6 undecidable manual P 179 58.8966 50 0.68 40
IV.MPAG.EHZ. 2021-04-13T12:53:38.19 0.6 undecidable manual P 16 56.3991 50 -0.24 45
IV.MC2.EHZ. 2021-04-13T12:53:38.39 0.6 positive manual P 117 56.1993 50 -0.01 47
IV.SEF1.HNN. 2021-04-13T12:53:38.81 0.6 undecidable manual S 88 30.6471 105 -0.07 49
IV.NRCA.HHZ. 2021-04-13T12:53:38.07 0.1 positive manual P 127 55.6998 50 -0.25 90
IV.CESI.HHZ. 2021-04-13T12:53:38.51 0.6 undecidable manual S 119 30.9468 104 -0.49 45
IV.GAVE.EHZ. 2021-04-13T12:53:38.12 1.0 undecidable manual P 152 56.1993 50 -0.27 22
IV.TB03.DHZ.01 2021-04-13T12:53:38.98 0.6 undecidable manual S 336 31.746 104 -0.29 47
IV.CSP1.EHZ. 2021-04-13T12:53:37.55 0.1 positive manual P 96 51.7038 50 -0.15 93
IV.ATVA.EHE. 2021-04-13T12:53:37.52 0.6 undecidable manual S 304 27.6501 106 -0.39 46
IV.BADI.EHN. 2021-04-13T12:53:37.11 0.1 undecidable manual P 328 48.7179 50 -0.14 94
IV.CAFI.HHZ. 2021-04-13T12:53:37.85 0.6 negative manual P 294 53.1024 50 -0.07 47
IV.ARVD.HHZ. 2021-04-13T12:53:37.14 0.1 undecidable manual P 37 49.8168 50 -0.27 91
IV.NARO.HHZ. 2021-04-13T12:53:37.43 0.1 undecidable manual P 1 52.3032 50 -0.37 89
IV.FOSV.EHZ. 2021-04-13T12:53:37.07 0.6 undecidable manual S 42 23.1546 109 0.66 43
IV.EL6.EHZ. 2021-04-13T12:53:36.93 0.1 undecidable manual P 64 47.9187 50 -0.18 93
IV.MGAB.HHZ. 2021-04-13T12:53:36.46 0.1 positive manual P 236 44.8218 50 -0.18 94
IV.ATMC.EHN. 2021-04-13T12:53:36.74 0.1 undecidable manual P 318 45.7209 50 -0.04 96
IT.FOPC.HGZ. 2021-04-13T12:53:36.22 0.6 undecidable manual S 150 21.6672 110 0.29 48
IV.FRON.EHZ. 2021-04-13T12:53:36.08 0.1 undecidable manual P 17 43.8228 50 -0.41 89
IV.ATLO.HNE. 2021-04-13T12:53:36.50 0.3 undecidable manual S 326 23.4543 109 -0.02 75
IV.FDMO.HHZ. 2021-04-13T12:53:36.12 0.3 undecidable manual P 105 43.4232 50 -0.31 68
IV.PIEI.HHZ. 2021-04-13T12:53:36.24 0.1 undecidable manual P 356 44.0226 50 -0.28 92
IV.MOMA.HHZ. 2021-04-13T12:53:35.12 0.6 negative manual P 180 37.2294 50 -0.35 46
IV.ATPC.HNN. 2021-04-13T12:53:35.51 0.1 undecidable manual P 347 38.9277 50 -0.22 94
IV.ATBU.HNN. 2021-04-13T12:53:35.33 0.1 undecidable manual P 357 37.3293 50 -0.16 95
IV.SSFR.HNE. 2021-04-13T12:53:35.00 0.1 undecidable manual P 27 37.1295 50 -0.46 89
IT.GNU.HGE. 2021-04-13T12:53:35.39 0.1 undecidable manual P 180 37.2294 50 -0.08 97
IV.ATPI.EHZ. 2021-04-13T12:53:35.07 0.6 positive manual P 339 37.0296 50 -0.38 45
IT.MTCL.HGZ. 2021-04-13T12:53:35.51 0.1 undecidable manual P 115 38.4282 50 -0.14 95
IV.CESI.HHZ. 2021-04-13T12:53:34.24 0.3 undecidable manual P 119 30.9468 104 -0.08 73
IV.MURB.HHZ. 2021-04-13T12:53:34.07 0.6 undecidable manual S 345 14.1747 119 0.52 46
IV.SNTG.HHZ. 2021-04-13T12:53:34.43 0.1 undecidable manual P 67 32.6451 104 -0.21 95
IV.TB03.DHZ.01 2021-04-13T12:53:34.31 0.1 undecidable manual P 336 31.746 104 -0.16 96
IV.ATMI.HHZ. 2021-04-13T12:53:34.65 0.1 undecidable manual P 312 32.5452 104 0.02 99
IV.MML1.HNE. 2021-04-13T12:53:34.45 0.1 undecidable manual P 95 32.6451 104 -0.2 95
IV.SEF1.HNN. 2021-04-13T12:53:34.04 0.1 undecidable manual P 88 30.6471 105 -0.2 95
IV.ATVA.EHE. 2021-04-13T12:53:33.54 0.1 undecidable manual P 304 27.6501 106 -0.14 97
IV.ASSB.HHZ. 2021-04-13T12:53:33.29 0.6 undecidable manual S 146 12.9759 121 0.12 50
IV.ATLO.HNE. 2021-04-13T12:53:32.80 0.1 undecidable manual P 326 23.4543 109 -0.08 99
IV.FOSV.EHZ. 2021-04-13T12:53:32.87 0.1 undecidable manual P 42 23.1546 109 0.05 100
IV.ATCC.EHZ. 2021-04-13T12:53:32.02 0.6 undecidable manual S 48 7.5813 136 0.3 49
IT.FOPC.HGZ. 2021-04-13T12:53:32.61 0.1 undecidable manual P 150 21.6672 110 0.07 100
IV.ASSB.HHZ. 2021-04-13T12:53:31.08 0.1 positive manual P 146 12.9759 121 0.13 100
IV.MURB.HHZ. 2021-04-13T12:53:31.48 0.3 positive manual P 345 14.1747 119 0.31 72
IV.ATCC.EHZ. 2021-04-13T12:53:30.35 0.1 positive manual P 48 7.5813 136 0.24 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:3.0 0.01675 0.4 AML other m 2021-04-13T12:53:32.56
IV.ATCC.EHE. ML:2.9 0.01285 0.3 AML other m 2021-04-13T12:53:32.37
IV.ASSB.HHE. ML:2.3 0.0021799999999999996 1.8 AML other m 2021-04-13T12:53:34.90
IV.ASSB.HHN. ML:2.5 0.003375 0.18 AML other m 2021-04-13T12:53:34.53
IV.MURB.HHE. ML:3.0 0.010254999999999998 0.28 AML other m 2021-04-13T12:53:34.48
IV.MURB.HNE. ML:2.9 0.008855 0.3 AML other m 2021-04-13T12:53:34.49
IV.MURB.HHN. ML:2.8 0.00701 0.26 AML other m 2021-04-13T12:53:35.78
IV.MURB.HNN. ML:2.8 0.006535 0.98 AML other m 2021-04-13T12:53:35.79
IV.CESI.HHE. ML:2.3 0.0009965 0.32 AML other m 2021-04-13T12:53:39.35
IV.SNTG.HNE. ML:2.2 0.0007975 1.62 AML other m 2021-04-13T12:53:40.03
IV.SNTG.HNN. ML:2.2 0.0007305 0.24 AML other m 2021-04-13T12:53:40.17
IV.ATPI.EHN. ML:1.9 0.0003105 1.7 AML other m 2021-04-13T12:53:41.00
IV.MOMA.HNN. ML:2.1 0.0004845 0.94 AML other m 2021-04-13T12:53:41.28
IV.MOMA.HHN. ML:2.1 0.00045650000000000004 0.92 AML other m 2021-04-13T12:53:41.75
IV.MOMA.HHE. ML:2.2 0.0006445 1.14 AML other m 2021-04-13T12:53:41.30
IV.MOMA.HNE. ML:2.2 0.0005945 1.14 AML other m 2021-04-13T12:53:41.30
IV.ATMI.HHE. ML:2.1 0.0006405000000000001 0.82 AML other m 2021-04-13T12:53:42.73
IV.ATPI.EHE. ML:1.8 0.0002525 1.3 AML other m 2021-04-13T12:53:42.67
IV.FDMO.HHN. ML:2.3 0.0006715 0.2 AML other m 2021-04-13T12:53:42.87
IV.FRON.EHE. ML:1.9 0.000248 1.26 AML other m 2021-04-13T12:53:42.33
IV.CESI.HHN. ML:2.1 0.0006760000000000001 1.2 AML other m 2021-04-13T12:53:42.36
IV.FDMO.HHE. ML:2.1 0.000424 1.3 AML other m 2021-04-13T12:53:43.15
IV.ATMI.HHN. ML:2.2 0.0006755 0.36 AML other m 2021-04-13T12:53:43.79
IV.PIEI.HHE. ML:2.2 0.0005615 0.3 AML other m 2021-04-13T12:53:43.98
IV.PIEI.HHN. ML:2.2 0.000489 1.68 AML other m 2021-04-13T12:53:44.97
IV.FRON.EHN. ML:2.0 0.000292 0.48 AML other m 2021-04-13T12:53:44.34
IV.MGAB.HHN. ML:2.4 0.0007455000000000001 0.5 AML other m 2021-04-13T12:53:44.66
IV.MGAB.HNN. ML:2.4 0.0007844999999999999 0.48 AML other m 2021-04-13T12:53:44.67
IV.EL6.EHE. ML:2.4 0.000721 0.92 AML other m 2021-04-13T12:53:45.55
IV.NARO.HHE. ML:1.8 0.00016649999999999998 1.16 AML other m 2021-04-13T12:53:45.36
IV.ARVD.HHN. ML:1.8 0.00016249999999999997 0.5 AML other m 2021-04-13T12:53:45.30
IV.CSP1.EHN. ML:2.8 0.001615 0.28 AML other m 2021-04-13T12:53:45.56
IV.ARVD.HHE. ML:2.1 0.0003665 0.46 AML other m 2021-04-13T12:53:45.57
IV.MGAB.HNE. ML:2.4 0.000712 0.48 AML other m 2021-04-13T12:53:45.81
IV.MGAB.HHE. ML:2.4 0.0007725 0.48 AML other m 2021-04-13T12:53:45.57
IV.NARO.HHN. ML:1.7 0.00013000000000000002 0.32 AML other m 2021-04-13T12:53:45.84
IV.CSP1.EHE. ML:2.6 0.00107 1.32 AML other m 2021-04-13T12:53:45.20
IV.EL6.EHN. ML:2.2 0.000508 0.28 AML other m 2021-04-13T12:53:46.39
IV.MPAG.EHE. ML:1.9 0.000182 0.44 AML other m 2021-04-13T12:53:46.87
IV.NRCA.HHN. ML:2.3 0.000479 0.82 AML other m 2021-04-13T12:53:46.48
IV.GAVE.EHE. ML:2.4 0.0006450000000000001 0.6 AML other m 2021-04-13T12:53:47.33
IV.GAVE.EHN. ML:2.3 0.0004875 0.2 AML other m 2021-04-13T12:53:48.34
IV.CESX.HHE. ML:2.1 0.000279 1.46 AML other m 2021-04-13T12:53:49.07
IV.NRCA.HHE. ML:2.3 0.0004195 0.18 AML other m 2021-04-13T12:53:49.22
IV.PARC.HHE. ML:1.9 0.000143 1.02 AML other m 2021-04-13T12:53:49.47
IV.MPAG.EHN. ML:1.8 0.00014615 0.46 AML other m 2021-04-13T12:53:50.86
IV.CESX.HHN. ML:2.1 0.0002935 1.68 AML other m 2021-04-13T12:53:50.91
IV.PARC.HHN. ML:1.9 0.000151 1.5 AML other m 2021-04-13T12:53:51.82
IV.LNSS.HHN. ML:2.3 0.0003055 0.96 AML other m 2021-04-13T12:53:53.84
IV.LNSS.HHE. ML:2.2 0.00027449999999999995 0.22 AML other m 2021-04-13T12:53:53.65
IV.TERO.HHE. ML:1.7 0.000049949999999999994 0.88 AML other m 2021-04-13T12:54:02.25
IV.TERO.HHN. ML:1.8 0.0000664 0.88 AML other m 2021-04-13T12:54:05.52
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