Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.3 on date 26-05-2021 and time 04:46:38 (Italy) in region 3 km E Pietralunga (PG)

A magnitude ML 1.3 earthquake occured in region: 3 km E Pietralunga (PG), on

  • 26-05-2021 02:46:38 (UTC)
  • 26-05-2021 04:46:38 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.4480, 12.4760 at 8 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 3 2111 2111
Cantiano PU 13 2245 4356
Apecchio PU 13 1882 6238
Gubbio PG 13 32216 38454
Montone PG 15 1680 40134
Piobbico PU 16 2029 42163
Scheggia e Pascelupo PG 16 1393 43556
Cagli PU 18 8731 52287
Città di Castello PG 19 39913 92200
Umbertide PG 20 16681 108881

Municipalities with at least 50000 inhabitants

An earthquake occurred to
39 Km N of Perugia (166134 inhabitants)
48 Km E of Arezzo (99543 inhabitants)
58 Km NW of Foligno (57155 inhabitants)
62 Km SW of Fano (60888 inhabitants)
62 Km SW of Pesaro (94582 inhabitants)
69 Km S of Rimini (147750 inhabitants)
79 Km S of Cesena (96758 inhabitants)
86 Km W of Ancona (100861 inhabitants)
93 Km SE of Forlì (117913 inhabitants)
94 Km E of Siena (53903 inhabitants)
100 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 2021-05-26
02:46:38		 43.4482 12.4762 9 2021-05-26
02:56:21		 Sala Sismica INGV-Roma 90499511
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-26 02:46:38 ± 0.04
Latitude 43.4482 ± 0.0018
Longitude 12.4762 ± 0.0037
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 90499511

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 212
Semi-minor axis of confidence ellipse (meter) 176
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 285
Circular confidence region, given by single value of horizontal uncertainty (meter) 210.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 25
Number of defining phases 25
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.05396
Epicentral distance of station farthest from the epicenter (degree) 0.60614
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 19
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.3
Num. used stations 43
Type of magnitude ML
Reference to an origin 90499511
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-26 02:56:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2021-05-26T02:46:50.42 0.3 undecidable manual P 133 67.2771 50 -0.05 67
IV.EL6.EHZ. 2021-05-26T02:46:48.29 0.6 undecidable manual P 104 52.1034 50 0.15 45
IV.ASSB.HHZ. 2021-05-26T02:46:47.37 0.3 undecidable manual P 162 47.3193 50 -0.03 70
IV.NARO.HHZ. 2021-05-26T02:46:45.63 0.3 undecidable manual S 25 19.869 113 -0.25 70
IV.ARVD.HHZ. 2021-05-26T02:46:45.68 0.3 undecidable manual P 81 37.8288 50 -0.26 68
IV.FOSV.EHZ. 2021-05-26T02:46:44.23 0.3 undecidable manual P 126 28.5492 107 -0.11 71
IV.MPAG.EHZ. 2021-05-26T02:46:44.53 0.3 undecidable manual P 48 30.3474 106 -0.15 70
IV.PE3.EHZ. 2021-05-26T02:46:44.35 0.3 undecidable manual P 3 27.5502 107 0.21 70
IV.ATCC.EHZ. 2021-05-26T02:46:44.96 0.3 undecidable manual P 156 32.0457 105 -0.04 71
IV.APEC.HHZ. 2021-05-26T02:46:43.79 0.3 undecidable manual S 340 13.0758 123 0.02 74
IV.FRON.EHZ. 2021-05-26T02:46:43.03 0.3 undecidable manual P 69 21.5673 112 0.03 73
IV.SSFR.HHZ. 2021-05-26T02:46:43.63 0.3 undecidable manual P 93 24.6531 109 0.04 72
IV.PIEI.HHZ. 2021-05-26T02:46:43.31 0.3 undecidable manual S 26 10.7781 128 0.17 72
IV.ATFO.HHZ. 2021-05-26T02:46:43.44 0.3 undecidable manual S 140 11.877 126 0.01 74
IV.MURB.HHZ. 2021-05-26T02:46:43.08 0.3 undecidable manual P 169 20.868 112 0.2 71
IV.ATVO.HHZ. 2021-05-26T02:46:42.62 0.1 undecidable manual S 217 9.1797 133 -0.1 98
IV.ATMI.HHZ. 2021-05-26T02:46:42.96 0.3 undecidable manual P 233 20.9679 112 0.06 73
IV.NARO.HHZ. 2021-05-26T02:46:42.63 0.3 undecidable manual P 25 19.869 113 -0.07 73
IV.BADI.EHZ. 2021-05-26T02:46:42.78 0.3 undecidable manual P 290 19.869 113 0.09 72
IV.ATPI.EHZ. 2021-05-26T02:46:41.66 0.3 undecidable manual S 273 5.994 145 -0.31 71
IV.ATFO.HHZ. 2021-05-26T02:46:41.43 0.3 undecidable manual P 140 11.877 126 0.14 73
IV.APEC.HHZ. 2021-05-26T02:46:41.56 0.3 undecidable manual P 340 13.0758 123 0.07 73
IV.PIEI.HHZ. 2021-05-26T02:46:41.28 0.3 undecidable manual P 26 10.7781 128 0.16 72
IV.ATPI.EHZ. 2021-05-26T02:46:40.47 0.1 undecidable manual P 273 5.994 145 0.02 100
IV.ATVO.HHZ. 2021-05-26T02:46:40.95 0.3 undecidable manual P 217 9.1797 133 0.07 74
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATPI.EHN. ML:1.4 0.00047226555000000006 0.2784 AML other m 2021-05-26T02:46:42.09
IV.ATPI.HNE. ML:1.2 0.00029308865 0.1504 AML other m 2021-05-26T02:46:42.50
IV.ATPI.EHE. ML:1.2 0.0002778534 0.1392 AML other m 2021-05-26T02:46:42.58
IV.ATPI.HNN. ML:1.4 0.0005135000000000001 0.28 AML other m 2021-05-26T02:46:42.09
IV.ATVO.HHE. ML:1.5 0.00046070545 0.12 AML other m 2021-05-26T02:46:42.00
IV.ATVO.HHN. ML:1.4 0.00034082785 0.1392 AML other m 2021-05-26T02:46:42.80
IV.ATFO.HHN. ML:1.3 0.000225 0.14 AML other m 2021-05-26T02:46:43.87
IV.PIEI.HHN. ML:1.5 0.00043577895 0.1408 AML other m 2021-05-26T02:46:43.70
IV.PIEI.HHE. ML:1.6 0.0005669999999999999 0.12 AML other m 2021-05-26T02:46:43.87
IV.APEC.HHE. ML:1.4 0.00027249999999999996 1.78 AML other m 2021-05-26T02:46:43.94
IV.APEC.HHN. ML:1.6 0.000434 1.86 AML other m 2021-05-26T02:46:44.93
IV.ATFO.HHE. ML:1.2 0.00017263499999999998 0.16 AML other m 2021-05-26T02:46:44.02
IV.NARO.HHE. ML:1.3 0.00014500000000000003 0.06 AML other m 2021-05-26T02:46:45.96
IV.BADI.EHN. ML:1.2 0.0001185 0.18 AML other m 2021-05-26T02:46:46.27
IV.BADI.EHE. ML:1.4 0.00018219995 0.16 AML other m 2021-05-26T02:46:46.27
IV.FRON.EHN. ML:1.2 0.00009779999999999999 0.18 AML other m 2021-05-26T02:46:46.57
IV.NARO.HHN. ML:1.1 0.0001027299 0.0592 AML other m 2021-05-26T02:46:46.06
IV.FRON.EHE. ML:0.6 0.000031667825000000004 0.12 AML other m 2021-05-26T02:46:47.25
IV.MURB.HHN. ML:1.6 0.0002630749 0.1392 AML other m 2021-05-26T02:46:46.98
IV.ATMI.HHN. ML:1.0 0.00007214999999999999 0.58 AML other m 2021-05-26T02:46:47.46
IV.MURB.HHE. ML:1.7 0.00036026905 0.2592 AML other m 2021-05-26T02:46:47.08
IV.ATMI.HHE. ML:1.0 0.00007405000000000001 0.34 AML other m 2021-05-26T02:46:47.96
IV.SSFR.HHN. ML:1.2 0.00009235 0.1 AML other m 2021-05-26T02:46:48.18
IV.SSFR.HHE. ML:1.2 0.00009976312000000001 0.1792 AML other m 2021-05-26T02:46:49.54
IV.MPAG.EHN. ML:0.9 0.000040409815 0.08 AML other m 2021-05-26T02:46:49.52
IV.MPAG.EHE. ML:0.8 0.00002830408 0.12 AML other m 2021-05-26T02:46:50.04
IV.ATCC.EHN. ML:1.6 0.0001715 0.28 AML other m 2021-05-26T02:46:50.63
IV.ATCC.EHE. ML:1.6 0.0001895 0.2 AML other m 2021-05-26T02:46:50.64
IV.ARVD.HHN. ML:0.7 0.00002172859 0.1408 AML other m 2021-05-26T02:46:51.77
IV.ARVD.HHE. ML:0.8 0.000024399999999999997 0.5 AML other m 2021-05-26T02:46:51.90
IV.ASSB.HHE. ML:1.1 0.00003625000000000001 0.16 AML other m 2021-05-26T02:46:54.68
IV.ASSB.HHN. ML:1.1 0.00003565 0.96 AML other m 2021-05-26T02:46:55.72
IV.MURB.HNE. ML:1.7 0.00034666039999999996 0.2304 AML other m 2021-05-26T02:46:46.90
IV.MURB.HNN. ML:1.5 0.00021902385 0.1696 AML other m 2021-05-26T02:46:46.97
IV.SSFR.HNE. ML:1.3 0.0001340656 0.0608 AML other m 2021-05-26T02:46:48.93
IV.SSFR.HNN. ML:1.4 0.00016849448 0.0496 AML other m 2021-05-26T02:46:48.17
IV.FOSV.EHE. ML:0.6 0.000018245730000000003 0.08 AML other m 2021-05-26T02:46:49.46
IV.FOSV.EHN. ML:0.6 0.0000196549745 0.08 AML other m 2021-05-26T02:46:50.34
IV.PE3.EHE. ML:1.4 0.00014532165 0.4592 AML other m 2021-05-26T02:46:50.19
IV.PE3.EHN. ML:1.6 0.00019918755 0.28 AML other m 2021-05-26T02:46:49.63
IV.EL6.EHE. ML:1.0 0.0000273382155 0.3008 AML other m 2021-05-26T02:46:56.62
IV.FDMO.HHE. ML:0.8 0.000011067895 0.1792 AML other m 2021-05-26T02:47:00.66
IV.FDMO.HHN. ML:0.8 0.000010948125 0.1808 AML other m 2021-05-26T02:47:00.68
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