Earthquake with magnitude of ML 1.1 on date 27-03-2021 and time 23:30:23 (UTC) in region 6 km SW Pietralunga (PG)

A magnitude ML 1.1 earthquake occured in region: 6 km SW Pietralunga (PG), on

  • 27-03-2021 23:30:23 (UTC)
  • 28-03-2021 00:30:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4130, 12.3760 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
Pietralunga PG 6 2111 2111
Montone PG 7 1680 3791
CittĂ  di Castello PG 12 39913 43704
Umbertide PG 12 16681 60385
Apecchio PU 17 1882 62267
Monte Santa Maria Tiberina PG 17 1183 63450
Gubbio PG 18 32216 95666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km N of Perugia (166134 inhabitants)
40 Km E of Arezzo (99543 inhabitants)
57 Km NW of Foligno (57155 inhabitants)
70 Km SW of Pesaro (94582 inhabitants)
71 Km SW of Fano (60888 inhabitants)
74 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
85 Km E of Siena (53903 inhabitants)
94 Km S of Forlì (117913 inhabitants)
95 Km W of Ancona (100861 inhabitants)
97 Km N of Terni (111501 inhabitants)
99 Km E of Firenze (382808 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 1.1 2021-03-27
23:30:23
43.413 12.3763 8 2021-07-12
16:55:08
Bollettino Sismico Italiano INGV 89403781
Reviewed
Rev100
ML 1.0 2021-03-27
23:30:23
43.4142 12.379 7 2021-03-27
23:36:44
Sala Sismica INGV-Roma 88537101
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-27 23:30:23 ± 0.06
Latitude 43.4130 ± 0.0018
Longitude 12.3763 ± 0.0025
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 89403781

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 228
Semi-minor axis of confidence ellipse (meter) 66
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 83
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
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 47
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.02698
Epicentral distance of station farthest from the epicenter (degree) 0.41908
Number of stations at which the event was observed 24
Number of stations from which data was used for origin computation 24
Magnitudes information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 89403781
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-07-12 09:30:30

ML:1.0

Field Value
Value 1.0
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 88537101
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-27 23:36:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2021-03-27T23:30:38.27 0.3 undecidable manual S 78 46.5201 50 -0.33 65
IV.ATCC.EHZ. 2021-03-27T23:30:35.07 0.3 undecidable manual S 140 33.0447 104 0.24 68
IV.PE3.EHZ. 2021-03-27T23:30:34.86 0.3 undecidable manual S 17 32.8449 104 0.09 70
IT.SNS1.HNZ. 2021-03-27T23:30:33.08 0.6 undecidable manual S 312 26.5512 107 0.41 44
IV.PARC.HHZ. 2021-03-27T23:30:33.36 0.3 undecidable manual S 337 28.3494 106 0.09 71
IV.FRON.EHZ. 2021-03-27T23:30:33.65 0.3 undecidable manual S 67 30.4473 105 -0.31 68
IV.NARO.HHZ. 2021-03-27T23:30:32.59 0.3 undecidable manual S 37 27.4503 106 -0.35 67
IV.SSP9.EHZ. 2021-03-27T23:30:32.52 0.3 undecidable manual S 312 26.5512 107 -0.14 70
IV.ARVD.HHZ. 2021-03-27T23:30:31.77 0.1 undecidable manual P 78 46.5201 50 -0.25 89
IV.ATSC.EHZ. 2021-03-27T23:30:31.98 0.6 undecidable manual S 87 25.0527 108 -0.17 47
IV.PIEI.HHZ. 2021-03-27T23:30:30.43 0.3 undecidable manual S 43 18.6702 113 0.35 68
IV.MURB.HHZ. 2021-03-27T23:30:30.91 0.3 undecidable manual S 144 20.4684 111 0.24 70
IV.FRON.EHZ. 2021-03-27T23:30:29.13 0.1 undecidable manual P 67 30.4473 105 -0.21 92
IV.ATFO.HHZ. 2021-03-27T23:30:29.54 0.3 undecidable manual S 108 16.5723 116 0.13 72
IV.ATVA.EHZ. 2021-03-27T23:30:29.24 0.6 undecidable manual S 206 16.5723 116 -0.19 47
IV.APEC.HHZ. 2021-03-27T23:30:29.75 0.3 undecidable manual S 12 16.4724 116 0.35 69
IV.ATCC.EHZ. 2021-03-27T23:30:29.64 0.1 undecidable manual P 140 33.0447 104 -0.21 92
IV.PE3.EHZ. 2021-03-27T23:30:29.81 0.1 undecidable manual P 17 32.8449 104 0 96
IV.ATBU.EHZ. 2021-03-27T23:30:29.35 0.6 undecidable manual S 63 15.4734 117 0.27 47
IV.ATSC.EHZ. 2021-03-27T23:30:28.42 0.1 undecidable manual P 87 25.0527 108 0.12 95
IV.SSP9.EHZ. 2021-03-27T23:30:28.77 0.6 undecidable manual P 312 26.5512 107 0.17 47
IV.NARO.HHZ. 2021-03-27T23:30:28.56 0.1 undecidable manual P 37 27.4503 106 -0.2 93
IT.SNS1.HNZ. 2021-03-27T23:30:28.35 0.6 undecidable manual P 312 26.5512 107 -0.24 46
IV.PARC.HHZ. 2021-03-27T23:30:28.88 0.1 undecidable manual P 337 28.3494 106 -0.06 95
IV.ATMC.EHZ. 2021-03-27T23:30:28.94 0.6 undecidable manual S 284 15.2736 118 -0.07 49
IV.PIEI.HHZ. 2021-03-27T23:30:27.26 0.1 undecidable manual P 43 18.6702 113 0.15 95
IV.ATMI.HHZ. 2021-03-27T23:30:27.78 0.3 undecidable manual S 225 12.3765 123 -0.35 69
IV.MURB.HHZ. 2021-03-27T23:30:27.57 0.3 undecidable manual P 144 20.4684 111 0.13 71
IV.ATPC.HHE. 2021-03-27T23:30:27.78 0.6 undecidable manual S 41 9.9789 129 0.33 46
IV.ATLO.HNN. 2021-03-27T23:30:27.78 0.3 undecidable manual S 167 11.1777 126 0 74
IV.TB02.DHE.01 2021-03-27T23:30:26.47 0.6 undecidable manual S 150 5.3946 146 0.09 49
IT.UMBT.HGE. 2021-03-27T23:30:26.20 0.6 undecidable manual P 192 12.3765 123 0.22 47
IV.ATBU.EHZ. 2021-03-27T23:30:26.88 0.3 undecidable manual P 63 15.4734 117 0.35 69
IV.ATMC.EHZ. 2021-03-27T23:30:26.52 0.1 undecidable manual P 284 15.2736 118 0.04 98
IV.ATMI.HHZ. 2021-03-27T23:30:26.09 0.1 undecidable manual P 225 12.3765 123 0.11 97
IV.ATFO.HHZ. 2021-03-27T23:30:26.76 0.1 undecidable manual P 108 16.5723 116 0.04 98
IV.ATVA.EHZ. 2021-03-27T23:30:26.78 0.3 undecidable manual P 206 16.5723 116 0.05 73
IV.TB01.DHE.01 2021-03-27T23:30:26.39 0.3 undecidable manual S 126 5.8941 143 -0.09 74
IV.APEC.HHZ. 2021-03-27T23:30:26.84 0.3 undecidable manual P 12 16.4724 116 0.13 72
IV.ATLO.HNN. 2021-03-27T23:30:25.92 0.1 undecidable manual P 167 11.1777 126 0.14 96
IV.TB01.DHE.01 2021-03-27T23:30:25.12 0.1 undecidable manual P 126 5.8941 143 0.09 98
IV.TB03.DH2.01 2021-03-27T23:30:25.60 0.1 undecidable manual S 115 2.997 159 -0.39 93
IV.TB02.DHE.01 2021-03-27T23:30:25.14 0.1 undecidable manual P 150 5.3946 146 0.17 97
IV.ATPI.EHE. 2021-03-27T23:30:25.73 0.1 undecidable manual S 27 4.6953 150 -0.51 90
IV.ATPC.HHE. 2021-03-27T23:30:25.81 0.1 undecidable manual P 41 9.9789 129 0.22 95
IV.ATPI.EHE. 2021-03-27T23:30:24.77 0.1 undecidable manual P 27 4.6953 150 -0.11 98
IV.TB03.DH2.01 2021-03-27T23:30:24.71 0.1 undecidable manual P 115 2.997 159 -0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATFO.HHN. ML:1.1 0.00011999999999999999 1.62 AML other m 2021-03-27T23:30:29.86
IV.APEC.HHN. ML:1.2 0.0001595 0.1 AML other m 2021-03-27T23:30:30.14
IV.ATFO.HHE. ML:1.2 0.0001555 0.6 AML other m 2021-03-27T23:30:30.05
IV.APEC.HHE. ML:1.2 0.00013419999999999998 0.44 AML other m 2021-03-27T23:30:30.25
IV.PIEI.HHN. ML:1.3 0.000155 1.84 AML other m 2021-03-27T23:30:31.93
IV.PIEI.HHE. ML:1.2 0.00014649999999999998 1.82 AML other m 2021-03-27T23:30:31.93
IV.MURB.HHE. ML:1.1 0.0000916 0.64 AML other m 2021-03-27T23:30:32.42
IV.ATMI.HHE. ML:0.9 0.00010505 1.28 AML other m 2021-03-27T23:30:32.77
IV.NARO.HHE. ML:0.8 0.00003375 1 AML other m 2021-03-27T23:30:33.37
IV.NARO.HHN. ML:0.7 0.000027199999999999997 0.08 AML other m 2021-03-27T23:30:33.73
IV.FRON.EHE. ML:1.0 0.000042499999999999996 0.12 AML other m 2021-03-27T23:30:34.11
IV.FRON.EHN. ML:1.3 0.00009834999999999999 0.1 AML other m 2021-03-27T23:30:34.20
IV.PARC.HHE. ML:0.9 0.0000459 0.84 AML other m 2021-03-27T23:30:34.76
IV.PARC.HHN. ML:0.8 0.0000348 0.28 AML other m 2021-03-27T23:30:34.51
IV.MURB.HHN. ML:1.0 0.00008044999999999999 0.3 AML other m 2021-03-27T23:30:34.91
IV.ATMI.HHN. ML:0.9 0.00010025000000000001 0.3 AML other m 2021-03-27T23:30:35.40
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