Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 0.8 on date 29-05-2021 and time 04:23:55 (Italy) in region 2 km NE Umbertide (PG)

A magnitude ML 0.8 earthquake occured in region: 2 km NE Umbertide (PG), on

  • 29-05-2021 02:23:55 (UTC)
  • 29-05-2021 04:23:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.3220, 12.3470 at 25 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
Umbertide PG 2 16681 16681
Montone PG 5 1680 18361
Pietralunga PG 15 2111 20472
Città di Castello PG 18 39913 60385
Lisciano Niccone PG 18 613 60998
Gubbio PG 19 32216 93214
Monte Santa Maria Tiberina PG 20 1183 94397

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km N of Perugia (166134 inhabitants)
41 Km E of Arezzo (99543 inhabitants)
50 Km NW of Foligno (57155 inhabitants)
80 Km SW of Fano (60888 inhabitants)
80 Km SW of Pesaro (94582 inhabitants)
82 Km E of Siena (53903 inhabitants)
84 Km S of Rimini (147750 inhabitants)
88 Km N of Terni (111501 inhabitants)
91 Km S of Cesena (96758 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 0.8 2021-05-29
02:23:55		 43.3222 12.3468 25 2021-05-29
02:30:48		 Sala Sismica INGV-Roma 90589701
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-29 02:23:55 ± 0.08
Latitude 43.3222 ± 0.0027
Longitude 12.3468 ± 0.0037
Depth (km) 25 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90589701

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 53
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 199
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 85
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 32
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.04407
Epicentral distance of station farthest from the epicenter (degree) 0.54859
Number of stations at which the event was observed 18
Number of stations from which data was used for origin computation 18
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.3
Num. used stations 28
Type of magnitude ML
Reference to an origin 90589701
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-29 02:30:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FRON.EHZ. 2021-05-29T02:24:08.46 0.6 undecidable manual S 54 37.4292 117 0.04 48
IV.PIEI.HHZ. 2021-05-29T02:24:06.41 0.6 undecidable manual S 33 28.1496 125 0.13 47
IV.ATCC.EHZ. 2021-05-29T02:24:06.26 0.6 undecidable manual S 123 28.1496 125 -0.02 48
IV.CAFI.HHZ. 2021-05-29T02:24:06.90 0.6 undecidable manual S 272 30.747 122 0.05 48
IV.EL6.EHZ. 2021-05-29T02:24:06.25 1.0 undecidable manual P 89 60.8946 106 0.08 23
IV.ATBU.EHE. 2021-05-29T02:24:05.50 0.6 undecidable manual S 44 23.5542 131 0.19 47
IV.BADI.EHE. 2021-05-29T02:24:05.00 0.6 undecidable manual S 338 22.3554 132 -0.09 48
IV.CRE.HHZ. 2021-05-29T02:24:04.25 1.0 negative manual P 316 45.8208 111 0.3 22
IV.ATPC.HNE. 2021-05-29T02:24:04.79 0.6 undecidable manual S 27 19.6692 137 0.22 47
IV.MURB.HHZ. 2021-05-29T02:24:04.27 0.6 undecidable manual S 114 15.7731 143 0.37 46
IV.ATMC.EHE. 2021-05-29T02:24:04.42 0.6 undecidable manual S 318 18.5703 138 0.05 49
IV.ATPI.EHZ. 2021-05-29T02:24:03.67 0.6 undecidable manual S 17 14.9739 145 -0.1 49
IV.ASSB.HHZ. 2021-05-29T02:24:03.07 1.0 undecidable manual P 141 39.9267 115 -0.06 24
IV.FRON.EHZ. 2021-05-29T02:24:02.75 1.0 negative manual P 54 37.4292 117 -0.03 24
IV.ATVA.EHN. 2021-05-29T02:24:02.79 0.6 undecidable manual S 226 6.8931 162 -0.02 51
IV.ATLO.EHN. 2021-05-29T02:24:02.46 0.6 undecidable manual S 99 4.8951 167 -0.21 49
IV.ATMI.HHZ. 2021-05-29T02:24:02.80 0.6 undecidable manual S 282 6.4935 163 0.02 50
IV.ATVO.HHZ. 2021-05-29T02:24:02.84 0.6 undecidable manual S 36 8.1807 159 -0.09 50
IV.CAFI.HHZ. 2021-05-29T02:24:02.06 1.0 undecidable manual P 272 30.747 122 0.18 23
IV.PIEI.HHZ. 2021-05-29T02:24:01.45 0.6 positive manual P 33 28.1496 125 -0.09 48
IV.ATCC.EHZ. 2021-05-29T02:24:01.55 0.6 positive manual P 123 28.1496 125 0.01 49
IV.ATPC.HNE. 2021-05-29T02:24:00.29 0.1 undecidable manual P 27 19.6692 137 -0.27 93
IV.MURB.HHZ. 2021-05-29T02:24:00.42 1.0 undecidable manual P 114 15.7731 143 0.25 24
IV.ATMC.EHE. 2021-05-29T02:24:00.54 0.1 undecidable manual P 318 18.5703 138 0.1 97
IV.BADI.EHE. 2021-05-29T02:24:00.89 0.1 undecidable manual P 338 22.3554 132 0.04 98
IV.ATPI.EHZ. 2021-05-29T02:24:00.51 1.0 undecidable manual P 17 14.9739 145 0.42 23
IV.ATFO.HHZ. 2021-05-29T02:24:00.70 1.0 positive manual P 75 18.7701 138 0.24 24
IV.ATBU.EHE. 2021-05-29T02:24:00.83 0.1 undecidable manual P 44 23.5542 131 -0.16 95
IV.ATVO.HHZ. 2021-05-29T02:23:59.56 1.0 undecidable manual P 36 8.1807 159 -0.05 25
IV.ATVA.EHN. 2021-05-29T02:23:59.48 0.1 undecidable manual P 226 6.8931 162 -0.06 100
IV.ATLO.EHN. 2021-05-29T02:23:59.21 0.1 undecidable manual P 99 4.8951 167 -0.25 96
IV.ATMI.HHZ. 2021-05-29T02:23:59.57 0.1 undecidable manual P 282 6.4935 163 0.05 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.ATVO.HHN. ML:0.4 0.000017 0.8 AML other m 2021-05-29T02:24:03.34
IV.ATMI.HHE. ML:1.0 0.00006646009999999999 0.1792 AML other m 2021-05-29T02:24:03.89
IV.ATVO.HHE. ML:0.4 0.0000154 1.58 AML other m 2021-05-29T02:24:04.15
IV.ATMI.HHN. ML:0.9 0.000051128784999999996 0.2192 AML other m 2021-05-29T02:24:03.63
IV.MURB.HHN. ML:1.4 0.0001265 0.26 AML other m 2021-05-29T02:24:04.30
IV.MURB.HHE. ML:1.3 0.00010324999999999999 0.2 AML other m 2021-05-29T02:24:04.47
IV.ATCC.EHN. ML:1.1 0.0000465 0.94 AML other m 2021-05-29T02:24:06.84
IV.ATCC.EHE. ML:1.0 0.000035571425000000005 0.2816 AML other m 2021-05-29T02:24:06.64
IV.ASSB.HHN. ML:0.0 0.0000162002175 0.1408 AML other m 2021-05-29T02:24:08.32
IV.ASSB.HHE. ML:0.0 0.000016070205 0.32 AML other m 2021-05-29T02:24:09.37
IV.MURB.HNE. ML:1.3 0.000114373325 2.2496 AML other m 2021-05-29T02:24:04.08
IV.MURB.HNN. ML:1.4 0.00013384649999999997 0.2288 AML other m 2021-05-29T02:24:04.30
IV.ATPI.HNE. ML:1.2 0.00009151250499999999 3.12 AML other m 2021-05-29T02:24:04.20
IV.ATPI.HNN. ML:1.3 0.00012165020000000002 0.7504 AML other m 2021-05-29T02:24:07.22
IV.ATPI.EHE. ML:0.3 0.0000111685135 0.2 AML other m 2021-05-29T02:24:04.04
IV.ATPI.EHN. ML:0.3 0.000011368605 0.1808 AML other m 2021-05-29T02:24:04.43
IV.ATFO.HHE. ML:0.8 0.000030162575 0.28 AML other m 2021-05-29T02:24:04.90
IV.ATFO.HHN. ML:0.5 0.000016375605 0.24 AML other m 2021-05-29T02:24:04.36
IV.PIEI.HHE. ML:0.4 0.000012053001 0.16 AML other m 2021-05-29T02:24:07.15
IV.PIEI.HHN. ML:0.4 0.000009698682 0.1792 AML other m 2021-05-29T02:24:06.75
IV.CAFI.HHE. ML:0.6 0.00001277236 0.28 AML other m 2021-05-29T02:24:07.22
IV.CAFI.HHN. ML:0.4 0.000010139436 0.2 AML other m 2021-05-29T02:24:07.18
IV.FRON.EHE. ML:0.5 0.0000116566715 0.1392 AML other m 2021-05-29T02:24:08.98
IV.FRON.EHN. ML:0.7 0.00001511498 0.12 AML other m 2021-05-29T02:24:08.88
IV.CRE.HHE. ML:0.6 0.000009962183999999999 0.2592 AML other m 2021-05-29T02:24:11.61
IV.CRE.HHN. ML:0.9 0.00002151242 0.2192 AML other m 2021-05-29T02:24:11.76
IV.EL6.EHE. ML:0.9 0.000013629705 1.68 AML other m 2021-05-29T02:24:15.07
IV.EL6.EHN. ML:0.7 0.000011585848 1.2416 AML other m 2021-05-29T02:24:15.25
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