Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 05-01-2021 and time 19:32:59 (Italy) in region 2 km SW Pietralunga (PG)

A magnitude ML 1.3 earthquake occured in region: 2 km SW Pietralunga (PG), on

  • 05-01-2021 18:32:59 (UTC)
  • 05-01-2021 19:32:59 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 43.4250, 12.4270 at 9 km depth.

The earthquake was located by: Sala Sismica INGV-Roma.

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
Pietralunga PG 2 2111 2111
Montone PG 10 1680 3791
Gubbio PG 15 32216 36007
Apecchio PU 15 1882 37889
Umbertide PG 15 16681 54570
Città di Castello PG 16 39913 94483
Cantiano PU 17 2245 96728
Piobbico PU 20 2029 98757
Scheggia e Pascelupo PG 20 1393 100150

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km N of Perugia (166134 inhabitants)
44 Km E of Arezzo (99543 inhabitants)
57 Km NW of Foligno (57155 inhabitants)
67 Km SW of Pesaro (94582 inhabitants)
67 Km SW of Fano (60888 inhabitants)
72 Km S of Rimini (147750 inhabitants)
81 Km S of Cesena (96758 inhabitants)
89 Km E of Siena (53903 inhabitants)
91 Km W of Ancona (100861 inhabitants)
94 Km SE of Forlì (117913 inhabitants)
98 Km N of Terni (111501 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
Reviewed
Rev100 		ML 1.3 2021-01-05
18:32:59		 43.4252 12.4267 9 2021-01-05
18:39:22		 Sala Sismica INGV-Roma 86034911
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-01-05 18:32:59 ± 0.05
Latitude 43.4252 ± 0.0027
Longitude 12.4267 ± 0.0025
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 86034911

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 264
Semi-minor axis of confidence ellipse (meter) 189
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 201
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 62
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.38041
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 20
Type of magnitude ML
Reference to an origin 86034911
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-01-05 18:39:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SACS.HHZ. 2021-01-05T18:33:13.47 3.0 undecidable manual P 0.14 0
IV.ARVD.HHZ. 2021-01-05T18:33:13.57 0.3 undecidable manual S 79 42.2244 50 0.16 70
IV.FOSV.EHZ. 2021-01-05T18:33:10.30 0.6 undecidable manual S 118 30.6471 50 -0.01 49
IV.PARC.HHZ. 2021-01-05T18:33:09.85 0.6 undecidable manual S 329 29.0487 108 -0.01 49
IV.FRON.EHZ. 2021-01-05T18:33:08.63 0.3 undecidable manual S 67 26.1516 110 -0.28 70
IV.ARVD.HHZ. 2021-01-05T18:33:07.34 0.3 negative manual P 79 42.2244 50 -0.1 71
IV.ATVA.EHN. 2021-01-05T18:33:06.55 0.6 undecidable manual S 215 19.869 115 -0.34 47
IV.BADI.EHZ. 2021-01-05T18:33:06.22 0.3 undecidable manual S 303 17.3715 118 0.09 74
IV.MURB.HHZ. 2021-01-05T18:33:06.99 0.3 undecidable manual S 156 19.6692 115 0.17 73
IV.ATMC.EHE. 2021-01-05T18:33:06.44 0.3 undecidable manual S 277 18.9699 116 -0.18 73
IV.PIEI.HHZ. 2021-01-05T18:33:05.54 0.3 undecidable manual S 35 15.0738 122 0.13 74
IV.PARC.HHZ. 2021-01-05T18:33:05.33 1.0 undecidable manual P 329 29.0487 108 -0.06 24
IV.FOSV.EHZ. 2021-01-05T18:33:05.50 0.6 undecidable manual P 118 30.6471 50 -0.15 48
IV.FRON.EHZ. 2021-01-05T18:33:04.64 0.6 negative manual P 67 26.1516 110 -0.2 48
IV.ATVA.EHN. 2021-01-05T18:33:04.11 0.6 undecidable manual P 215 19.869 115 0.44 46
IV.MURB.HHZ. 2021-01-05T18:33:03.61 0.3 positive manual P 156 19.6692 115 -0.03 75
IV.ATMC.EHE. 2021-01-05T18:33:03.46 0.1 undecidable manual P 277 18.9699 116 -0.05 99
IV.ATPC.HHE. 2021-01-05T18:33:03.18 0.3 undecidable manual S 22 6.5934 144 -0.06 76
IV.BADI.EHZ. 2021-01-05T18:33:03.31 0.1 positive manual P 303 17.3715 118 0.08 99
IV.PIEI.HHZ. 2021-01-05T18:33:02.93 0.6 undecidable manual P 35 15.0738 122 0.11 49
IV.ATPC.HHE. 2021-01-05T18:33:01.69 0.1 undecidable manual P 22 6.5934 144 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PIEI.HHN. ML:0.8 0.00006675398 0.1792 AML other m 2021-01-05T18:33:06.63
IV.PIEI.HHE. ML:0.9 0.00007651336 0.3456 AML other m 2021-01-05T18:33:06.73
IV.BADI.EHN. ML:1.4 0.0002135 0.32 AML other m 2021-01-05T18:33:06.75
IV.BADI.EHE. ML:1.4 0.00019276514999999999 0.1024 AML other m 2021-01-05T18:33:06.81
IV.MURB.HHN. ML:1.6 0.00027449999999999995 0.16 AML other m 2021-01-05T18:33:07.59
IV.MURB.HHE. ML:1.7 0.0003505 0.18 AML other m 2021-01-05T18:33:07.46
IV.FRON.EHE. ML:1.1 0.00006505560000000001 0.1024 AML other m 2021-01-05T18:33:08.72
IV.FRON.EHN. ML:1.4 0.00014450000000000002 0.1 AML other m 2021-01-05T18:33:08.84
IV.PARC.HHE. ML:1.0 0.000051000000000000006 1.84 AML other m 2021-01-05T18:33:11.04
IV.PARC.HHN. ML:1.1 0.0000658 1.02 AML other m 2021-01-05T18:33:11.25
IV.MURB.HNE. ML:1.6 0.00030619054999999994 0.1792 AML other m 2021-01-05T18:33:07.55
IV.MURB.HNN. ML:1.4 0.00021050485000000002 0.1792 AML other m 2021-01-05T18:33:07.51
IV.FOSV.EHE. ML:1.1 0.000060765685 3.456 AML other m 2021-01-05T18:33:11.51
IV.FOSV.EHN. ML:0.9 0.00003916132 2.1376 AML other m 2021-01-05T18:33:20.95
IV.ARVD.HHE. ML:1.2 0.00005398509 2.7776 AML other m 2021-01-05T18:33:18.83
IV.ARVD.HHN. ML:1.1 0.00004507176 1.8816 AML other m 2021-01-05T18:33:16.04
IV.SACS.HHE. ML:1.6 0.00006449041999999999 2.2784 AML other m 2021-01-05T18:33:36.99
IV.SACS.HHN. ML:1.6 0.00005446273 3.6864 AML other m 2021-01-05T18:33:13.71
IV.SACS.HNE. ML:2.0 0.0001668948 2.1632 AML other m 2021-01-05T18:33:35.71
IV.SACS.HNN. ML:2.0 0.00013752551000000002 1.9328 AML other m 2021-01-05T18:33:29.45
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