Earthquake with magnitude of ML 1.5 on date 08-04-2021 and time 02:43:50 (UTC) in region 4 km SW Valfabbrica (PG)

A magnitude ML 1.5 earthquake occured in region: 4 km SW Valfabbrica (PG), on

  • 08-04-2021 02:43:50 (UTC)
  • 08-04-2021 04:43:50 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.1380, 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.

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 9 28299 53562
Perugia PG 14 166134 219696
Bettona PG 15 4367 224063
Cannara PG 16 4305 228368
Torgiano PG 16 6725 235093
Valtopina PG 18 1398 236491
Spello PG 19 8645 245136
Nocera Umbra PG 19 5839 250975

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km E of Perugia (166134 inhabitants)
24 Km NW of Foligno (57155 inhabitants)
65 Km N of Terni (111501 inhabitants)
66 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 1.5 2021-04-08
02:43:50
43.1382 12.5572 8 2021-07-12
16:55:11
Bollettino Sismico Italiano INGV 90259231
Reviewed
Rev100
ML 1.6 2021-04-08
02:43:50
43.1367 12.5703 10 2021-04-08
03:31:16
Sala Sismica INGV-Roma 88908571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-04-08 02:43:50 ± 0.05
Latitude 43.1382 ± 0.0018
Longitude 12.5572 ± 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 90259231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 300
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 234
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) 59
Number of associated phases, regardless of their use for origin computation 61
Number of defining phases 61
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.07644
Epicentral distance of station farthest from the epicenter (degree) 0.67629
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 32
Magnitudes information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 36
Type of magnitude ML
Reference to an origin 88908571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-04-08 03:31:16

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 56
Type of magnitude ML
Reference to an origin 90259231
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-19 11:40:32
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MMO1.EHZ. 2021-04-08T02:44:12.49 0.3 undecidable manual S 113 67.7766 50 0.45 63
IV.MPAG.EHZ. 2021-04-08T02:44:09.40 0.3 undecidable manual S 17 56.8986 50 0.28 67
IV.NRCA.HHZ. 2021-04-08T02:44:09.28 0.3 undecidable manual S 127 56.3991 50 0.27 67
IV.GAVE.EHZ. 2021-04-08T02:44:09.34 0.3 undecidable manual S 151 56.499 50 0.3 67
IV.CAFI.HHZ. 2021-04-08T02:44:08.30 0.6 undecidable manual S 294 52.2033 50 0.41 44
IV.CSP1.EHZ. 2021-04-08T02:44:08.28 0.3 undecidable manual S 95 52.7028 50 0.27 68
IV.EL6.EHZ. 2021-04-08T02:44:07.31 0.3 undecidable manual S 64 48.8178 50 0.33 67
IV.ARVD.HHZ. 2021-04-08T02:44:07.57 0.3 undecidable manual S 38 50.5161 50 0.13 70
IV.NARO.HHZ. 2021-04-08T02:44:07.77 0.3 undecidable manual S 2 52.503 50 -0.18 69
IV.BADI.EHZ. 2021-04-08T02:44:07.27 0.3 undecidable manual S 329 48.3183 50 0.42 66
IV.MGAB.HHZ. 2021-04-08T02:44:06.31 0.6 undecidable manual S 235 43.9227 50 0.64 41
IV.APEC.HHZ. 2021-04-08T02:44:06.97 0.3 undecidable manual S 347 47.9187 50 0.23 69
IV.FRON.EHZ. 2021-04-08T02:44:05.54 0.3 undecidable manual S 18 44.2224 50 -0.22 69
IV.FDMO.HHZ. 2021-04-08T02:44:05.69 0.3 undecidable manual S 105 44.4222 50 -0.1 71
IV.PIEI.HHZ. 2021-04-08T02:44:05.85 0.3 undecidable manual S 358 44.1225 50 0.12 71
IV.MF5.EHZ. 2021-04-08T02:44:04.83 0.6 undecidable manual P 103 75.0693 50 0.63 39
IV.ATPI.EHZ. 2021-04-08T02:44:03.66 0.3 undecidable manual S 340 36.8298 50 -0.12 72
IV.SSFR.HHZ. 2021-04-08T02:44:03.87 0.3 undecidable manual S 29 37.7289 50 -0.15 71
IV.MOMA.HHZ. 2021-04-08T02:44:03.85 0.3 undecidable manual S 178 37.1295 50 0 73
IV.ATMI.HHZ. 2021-04-08T02:44:02.27 0.3 undecidable manual S 313 31.9458 105 -0.03 74
IV.MMO1.EHZ. 2021-04-08T02:44:02.98 0.1 undecidable manual P 113 67.7766 50 -0.11 91
IV.PARC.HHZ. 2021-04-08T02:44:02.49 0.3 undecidable manual P 336 62.1933 50 0.27 66
IV.NRCA.HHZ. 2021-04-08T02:44:01.02 0.3 undecidable manual P 127 56.3991 50 -0.32 66
IV.TB01.DHZ.01 2021-04-08T02:44:01.16 0.3 undecidable manual S 340 28.749 106 -0.08 73
IV.GAVE.EHZ. 2021-04-08T02:44:01.26 0.3 undecidable manual P 151 56.499 50 -0.09 70
IV.MPAG.EHZ. 2021-04-08T02:44:01.23 0.3 undecidable manual P 17 56.8986 50 -0.17 68
IV.MC2.EHZ. 2021-04-08T02:44:01.78 0.6 undecidable manual P 116 57.0984 50 0.34 44
IV.TB02.DHZ.01 2021-04-08T02:44:01.12 0.3 undecidable manual S 335 28.3494 106 0 75
IV.CESI.HHZ. 2021-04-08T02:44:01.99 0.6 undecidable manual S 118 31.8459 105 -0.27 47
IV.ATVA.EHZ. 2021-04-08T02:44:00.30 0.3 undecidable manual S 305 26.9508 107 -0.34 70
IV.BADI.EHZ. 2021-04-08T02:44:00.01 0.3 undecidable manual P 329 48.3183 50 -0.08 71
IV.CAFI.HHZ. 2021-04-08T02:44:00.77 0.6 undecidable manual P 294 52.2033 50 0.08 47
IV.ARVD.HHZ. 2021-04-08T02:44:00.19 0.3 undecidable manual P 38 50.5161 50 -0.24 68
IV.ATFO.HHZ. 2021-04-08T02:44:00.67 0.6 undecidable manual S 3 25.3524 108 0.55 44
IV.CSP1.EHZ. 2021-04-08T02:44:00.24 0.6 undecidable manual P 95 52.7028 50 -0.52 43
IV.NARO.HHZ. 2021-04-08T02:44:00.40 0.3 undecidable manual P 2 52.503 50 -0.33 67
IV.PIEI.HHZ. 2021-04-08T02:43:59.32 0.1 undecidable manual P 358 44.1225 50 -0.12 94
IV.MGAB.HHZ. 2021-04-08T02:43:59.44 0.1 undecidable manual P 235 43.9227 50 0.03 96
IV.APEC.HHZ. 2021-04-08T02:43:59.93 0.3 undecidable manual P 347 47.9187 50 -0.1 71
IV.FOSV.EHZ. 2021-04-08T02:43:59.92 0.3 undecidable manual S 43 23.9538 109 0.26 71
IV.FRON.EHZ. 2021-04-08T02:43:59.07 0.1 undecidable manual P 18 44.2224 50 -0.39 89
IV.EL6.EHZ. 2021-04-08T02:43:59.96 0.1 undecidable manual P 64 48.8178 50 -0.21 92
IV.ATLO.EHZ. 2021-04-08T02:43:59.38 0.3 undecidable manual S 328 23.0547 110 0.01 75
IV.FDMO.HHZ. 2021-04-08T02:43:59.18 0.1 undecidable manual P 105 44.4222 50 -0.3 91
IV.SSFR.HHZ. 2021-04-08T02:43:58.07 0.1 undecidable manual P 29 37.7289 50 -0.39 90
IV.MOMA.HHZ. 2021-04-08T02:43:58.23 0.1 undecidable manual P 178 37.1295 50 -0.13 96
IV.ATPI.EHZ. 2021-04-08T02:43:58.00 0.3 undecidable manual P 340 36.8298 50 -0.32 69
IV.MURB.HHZ. 2021-04-08T02:43:57.03 0.3 undecidable manual S 349 14.0748 120 0.5 69
IV.CESI.HHZ. 2021-04-08T02:43:57.20 0.1 undecidable manual P 118 31.8459 105 -0.24 94
IV.ATMI.HHZ. 2021-04-08T02:43:57.66 0.6 undecidable manual P 313 31.9458 105 0.19 48
IV.ATFO.HHZ. 2021-04-08T02:43:56.37 0.1 undecidable manual P 3 25.3524 108 0.16 97
IV.ATVA.EHZ. 2021-04-08T02:43:56.42 0.1 undecidable manual P 305 26.9508 107 -0.09 98
IV.TB01.DHZ.01 2021-04-08T02:43:56.68 0.3 undecidable manual P 340 28.749 106 -0.17 72
IV.TB02.DHZ.01 2021-04-08T02:43:56.57 0.3 undecidable manual P 335 28.3494 106 -0.22 71
IV.ASSB.HHZ. 2021-04-08T02:43:56.37 0.3 undecidable manual S 142 13.3755 122 0.04 76
IV.ATLO.EHZ. 2021-04-08T02:43:55.72 0.1 undecidable manual P 328 23.0547 110 -0.05 99
IV.ATCC.EHZ. 2021-04-08T02:43:55.01 0.3 undecidable manual S 52 8.4804 134 0.04 77
IV.FOSV.EHZ. 2021-04-08T02:43:55.89 0.1 positive manual P 43 23.9538 109 -0.05 99
IV.ASSB.HHZ. 2021-04-08T02:43:54.14 0.1 negative manual P 142 13.3755 122 0.12 100
IV.MURB.HHZ. 2021-04-08T02:43:54.36 0.1 negative manual P 349 14.0748 120 0.23 97
IV.ATCC.EHZ. 2021-04-08T02:43:53.38 0.1 positive manual P 52 8.4804 134 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATCC.EHN. ML:2.0 0.0014849999999999998 0.3 AML other m 2021-04-08T02:43:55.55
IV.ATCC.EHE. ML:2.0 0.0014750000000000002 0.68 AML other m 2021-04-08T02:43:56.05
IV.ASSB.HHE. ML:1.7 0.000616 0.1 AML other m 2021-04-08T02:43:57.09
IV.ASSB.HHN. ML:1.8 0.0007605 0.22 AML other m 2021-04-08T02:43:57.76
IV.ATFO.HHN. ML:1.6 0.0002385 0.2 AML other m 2021-04-08T02:44:01.06
IV.ATFO.HHE. ML:1.4 0.0001475 0.16 AML other m 2021-04-08T02:44:01.37
IV.CESI.HHE. ML:1.6 0.000167 0.32 AML other m 2021-04-08T02:44:02.48
IV.ATMI.HHE. ML:1.4 0.000130584285 0.2592 AML other m 2021-04-08T02:44:04.04
IV.CESI.HHN. ML:1.4 0.00012773334 0.16 AML other m 2021-04-08T02:44:04.20
IV.SSFR.HHN. ML:1.8 0.00025258755 0.16 AML other m 2021-04-08T02:44:04.39
IV.MOMA.HHN. ML:1.3 0.00007815 0.26 AML other m 2021-04-08T02:44:04.33
IV.ATMI.HHN. ML:1.6 0.0001727414 0.2 AML other m 2021-04-08T02:44:03.02
IV.SSFR.HHE. ML:1.8 0.00021943469999999998 0.1792 AML other m 2021-04-08T02:44:04.41
IV.ATPI.EHN. ML:1.2 0.00006315 0.22 AML other m 2021-04-08T02:44:05.64
IV.ATPI.EHE. ML:1.2 0.000059762175 0.2592 AML other m 2021-04-08T02:44:04.91
IV.FRON.EHN. ML:1.5 0.00009243667 0.0992 AML other m 2021-04-08T02:44:05.98
IV.FDMO.HHE. ML:1.6 0.000113 0.12 AML other m 2021-04-08T02:44:06.25
IV.FDMO.HHN. ML:1.5 0.00009568473999999998 0.2 AML other m 2021-04-08T02:44:05.87
IV.PIEI.HHE. ML:1.7 0.000142 0.28 AML other m 2021-04-08T02:44:06.70
IV.FRON.EHE. ML:1.5 0.0000887 0.12 AML other m 2021-04-08T02:44:06.75
IV.PIEI.HHN. ML:1.5 0.00009584999999999999 1.68 AML other m 2021-04-08T02:44:07.84
IV.MGAB.HHN. ML:1.6 0.00014150000000000002 0.18 AML other m 2021-04-08T02:44:07.42
IV.MOMA.HHE. ML:1.3 0.000070253275 0 AML other m 2021-04-08T02:44:04.81
IV.MGAB.HHE. ML:1.5 0.0001005 0.2 AML other m 2021-04-08T02:44:07.62
IV.APEC.HHN. ML:1.3 0.00005075 1.36 AML other m 2021-04-08T02:44:08.20
IV.EL6.EHN. ML:1.5 0.00008959457449999999 0.2 AML other m 2021-04-08T02:44:08.98
IV.EL6.EHE. ML:1.6 0.00011087683 0.1792 AML other m 2021-04-08T02:44:08.60
IV.BADI.EHN. ML:1.3 0.000048070207999999994 0.2992 AML other m 2021-04-08T02:44:09.60
IV.BADI.EHE. ML:1.4 0.0000642 0.32 AML other m 2021-04-08T02:44:10.30
IV.NRCA.HHN. ML:1.6 0.0000788342 0.1408 AML other m 2021-04-08T02:44:10.20
IV.APEC.HHE. ML:1.2 0.00003956676 0.2 AML other m 2021-04-08T02:44:09.69
IV.NRCA.HHE. ML:1.5 0.00006591228 0.1216 AML other m 2021-04-08T02:44:12.30
IV.CESI.HNN. ML:1.4 0.00012983754 0.0096 AML other m 2021-04-08T02:44:03.08
IV.CESI.HNE. ML:1.6 0.00020083045 0.3296 AML other m 2021-04-08T02:44:02.48
IV.ATPI.HNN. ML:1.3 0.00007070109499999999 0.2 AML other m 2021-04-08T02:44:03.99
IV.ATPI.HNE. ML:1.2 0.000053655809999999996 0.2208 AML other m 2021-04-08T02:44:03.93
IV.SSFR.HNN. ML:1.9 0.0002876121 0.1392 AML other m 2021-04-08T02:44:04.32
IV.SSFR.HNE. ML:1.8 0.0002238656 0.2 AML other m 2021-04-08T02:44:04.42
IV.MOMA.HNE. ML:1.3 0.000071394298 0.2208 AML other m 2021-04-08T02:44:05.00
IV.MOMA.HNN. ML:1.3 0.000076751005 0.1904 AML other m 2021-04-08T02:44:04.46
IV.MGAB.HNE. ML:1.6 0.000126771235 0.2384 AML other m 2021-04-08T02:44:07.51
IV.MGAB.HNN. ML:1.6 0.0001250892 0.16 AML other m 2021-04-08T02:44:07.25
IV.ARVD.HHN. ML:1.1 0.000034819799999999995 0.12 AML other m 2021-04-08T02:44:08.61
IV.ARVD.HHE. ML:1.5 0.00007462322000000001 0.1392 AML other m 2021-04-08T02:44:08.28
IV.CSP1.EHN. ML:2.0 0.00026422005 0.28 AML other m 2021-04-08T02:44:09.27
IV.CSP1.EHE. ML:1.8 0.00014752165000000002 0.2992 AML other m 2021-04-08T02:44:10.46
IV.NARO.HHN. ML:1.0 0.000022917940000000002 0.16 AML other m 2021-04-08T02:44:08.59
IV.NARO.HHE. ML:1.1 0.000028710649999999996 0.2 AML other m 2021-04-08T02:44:08.15
IV.NRCA.HNN. ML:1.7 0.00010574101999999999 0.1296 AML other m 2021-04-08T02:44:10.27
IV.NRCA.HNE. ML:1.4 0.0000601947865 0.1888 AML other m 2021-04-08T02:44:10.12
IV.MPAG.EHE. ML:1.1 0.00002783931 0.3792 AML other m 2021-04-08T02:44:09.56
IV.MPAG.EHN. ML:1.0 0.000023289185 0.44 AML other m 2021-04-08T02:44:10.78
IV.GAVE.EHE. ML:1.6 0.00009283391499999999 0.3008 AML other m 2021-04-08T02:44:11.01
IV.GAVE.EHN. ML:1.4 0.00006135927 0.16 AML other m 2021-04-08T02:44:12.40
IV.PARC.HHN. ML:1.0 0.000019639135 0.2 AML other m 2021-04-08T02:44:12.55
IV.PARC.HHE. ML:1.2 0.000033969805 0.36 AML other m 2021-04-08T02:44:12.84
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