Earthquake with magnitude of ML 1.9 on date 22-09-2020 and time 04:43:40 (UTC) in region 6 km W Giano dell'Umbria (PG)

A magnitude ML 1.9 earthquake occured in region: 6 km W Giano dell'Umbria (PG), on

  • 22-09-2020 04:43:40 (UTC)
  • 22-09-2020 06:43:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 12.51 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.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Giano dell'Umbria PG 6 3846 3846
Massa Martana PG 6 3770 7616
Collazzone PG 10 3473 11089
Todi PG 10 16851 27940
Gualdo Cattaneo PG 10 6155 34095
Fratta Todina PG 12 1839 35934
Monte Castello di Vibio PG 13 1567 37501
Castel Ritaldi PG 13 3278 40779
Montefalco PG 14 5679 46458
Bevagna PG 15 5081 51539
Acquasparta TR 15 4778 56317
Marsciano PG 17 18902 75219
Deruta PG 19 9669 84888
Montecastrilli TR 20 5022 89910
Cannara PG 20 4305 94215

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km SW of Foligno (57155 inhabitants)
32 Km NW of Terni (111501 inhabitants)
33 Km SE of Perugia (166134 inhabitants)
56 Km NE of Viterbo (67173 inhabitants)
87 Km SE of Arezzo (99543 inhabitants)
90 Km NW of L'Aquila (69753 inhabitants)
94 Km N of Guidonia Montecelio (88673 inhabitants)
99 Km N of Tivoli (56533 inhabitants)
100 Km W of Teramo (54892 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100
ML 1.9 2020-09-22
04:43:40
42.83 12.51 8 2020-09-22
04:54:25
Sala Sismica INGV-Roma 83120901
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-22 04:43:40 ± 0.07
Latitude 42.83 ± 0.00
Longitude 12.51 ± 0.00
Depth (km) 8 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 83120901

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 454
Semi-minor axis of confidence ellipse (meter) 249
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 224
Circular confidence region, given by single value of horizontal uncertainty (meter) 450
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 121
Number of associated phases, regardless of their use for origin computation 60
Number of defining phases 47
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.26
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.71676
Number of stations at which the event was observed 35
Number of stations from which data was used for origin computation 24
Magnitude information

ML:1.9

Field Value
Value 1.9
Uncertainty 0.3
Num. used stations 52
Type of magnitude ML
Reference to an origin 83120901
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-22 04:54:25
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CMPR.HHZ. 2020-09-22T04:45:27.67 3.0 undecidable manual Sg 15 0
MN.TRI.HHZ. 2020-09-22T04:45:07.77 3.0 undecidable manual Sg 8.47 0
IV.VENL.HNZ. 2020-09-22T04:44:55.67 3.0 undecidable manual Sg 7.78 0
IV.CMPR.HHZ. 2020-09-22T04:44:33.59 3.0 undecidable manual Pn 2.53 0
IV.MRB1.HHZ. 2020-09-22T04:44:30.07 3.0 negative manual Pg 9.59 0
MN.TRI.HHZ. 2020-09-22T04:44:27.31 3.0 negative manual Pn 3.76 0
IV.VAGA.HHZ. 2020-09-22T04:44:18.52 3.0 undecidable manual Pg 6.16 0
IV.FIR.HHZ. 2020-09-22T04:44:15.78 3.0 undecidable manual S -0.55 0
IV.CSNT.HHZ. 2020-09-22T04:44:13.30 3.0 undecidable manual S 2.72 0
IV.FIAM.HHZ. 2020-09-22T04:44:05.32 0.3 undecidable manual S 141 0.7168 50 0.46 62
IV.SMA1.EHZ. 2020-09-22T04:44:03.36 0.3 undecidable manual S 108 0.6376 50 0.82 55
IV.GUMA.HHZ. 2020-09-22T04:44:03.72 0.6 undecidable manual S 68 0.6484 50 0.86 36
IV.EL6.EHZ. 2020-09-22T04:44:03.99 0.6 undecidable manual S 41 0.6628 50 0.72 38
IV.CAFI.HHZ. 2020-09-22T04:44:03.23 0.3 undecidable manual S 322 0.6394 50 0.66 59
IV.MMO1.EHZ. 2020-09-22T04:44:01.73 0.3 undecidable manual S 83 0.6034 50 0.2 67
IV.CSP1.EHZ. 2020-09-22T04:44:01.02 0.3 undecidable manual S 62 0.5738 50 0.38 65
IV.ATMI.HHZ. 2020-09-22T04:44:00.14 0.3 undecidable manual S 341 0.536 50 0.62 61
IV.ATVO.HHZ. 2020-09-22T04:43:59.90 0.6 undecidable manual S 352 0.5594 50 -0.31 44
IV.MC2.EHZ. 2020-09-22T04:43:58.80 1.0 undecidable manual S 80 0.5054 50 0.19 23
IV.OFFI.HHZ. 2020-09-22T04:43:57.40 3.0 negative manual P 0.84 0
IV.FDMO.HHZ. 2020-09-22T04:43:57.76 0.6 undecidable manual S 64 0.4721 50 0.13 47
IV.MURB.HHZ. 2020-09-22T04:43:56.58 0.3 undecidable manual S 2 0.4353 50 0.04 72
IV.LNSS.HHZ. 2020-09-22T04:43:56.70 0.3 undecidable manual S 120 0.4506 50 -0.28 68
IV.NRCA.HHZ. 2020-09-22T04:43:56.56 0.6 undecidable manual S 89 0.4443 50 -0.23 46
IV.FIAM.HHZ. 2020-09-22T04:43:54.38 1.0 undecidable manual P 141 0.7168 50 -0.14 22
IV.BADI.EHZ. 2020-09-22T04:43:54.88 3.0 undecidable manual S -2.47 0
IV.ATCC.EHZ. 2020-09-22T04:43:54.27 0.3 undecidable manual S 15 0.3705 50 -0.34 68
IV.EL6.EHZ. 2020-09-22T04:43:53.85 0.6 negative manual P 41 0.6628 50 0.25 44
IV.CESI.HHZ. 2020-09-22T04:43:53.04 0.3 undecidable manual S 58 0.3399 50 -0.67 62
IV.CAFI.HHZ. 2020-09-22T04:43:53.11 0.1 undecidable manual P 322 0.6394 50 -0.09 91
IV.SMA1.EHZ. 2020-09-22T04:43:53.18 0.6 negative manual P 108 0.6376 50 0 46
IV.ATPI.EHZ. 2020-09-22T04:43:53.00 3.0 undecidable manual S -2.09 0
IV.GUMA.HHZ. 2020-09-22T04:43:53.65 1.0 positive manual P 68 0.6484 50 0.28 22
IV.ARRO.EHZ. 2020-09-22T04:43:52.70 0.3 undecidable manual S 143 0.3121 102 0.02 74
IV.RM33.EHZ. 2020-09-22T04:43:52.37 0.6 negative manual P 121 0.6088 50 -0.31 44
IV.SRES.HHZ. 2020-09-22T04:43:52.30 3.0 undecidable manual P -0.44 0
IV.GAVE.EHZ. 2020-09-22T04:43:52.61 0.6 undecidable manual S 115 0.3139 102 -0.13 48
IV.MGAB.HHZ. 2020-09-22T04:43:52.37 0.3 undecidable manual S 286 0.3031 103 0.03 74
IV.MMO1.EHZ. 2020-09-22T04:43:52.32 0.6 positive manual P 83 0.6034 50 -0.27 44
IV.ATMI.HHZ. 2020-09-22T04:43:51.50 0.1 undecidable manual P 341 0.536 50 0.06 93
IV.ATVO.HHZ. 2020-09-22T04:43:51.69 0.1 undecidable manual P 352 0.5594 50 -0.15 91
IV.CSP1.EHZ. 2020-09-22T04:43:51.87 1.0 negative manual P 62 0.5738 50 -0.21 22
IV.MC2.EHZ. 2020-09-22T04:43:50.81 0.6 negative manual P 80 0.5054 50 -0.1 47
IV.ASSB.HHZ. 2020-09-22T04:43:50.01 0.1 undecidable manual S 27 0.2419 106 -0.04 99
IV.FDMO.HHZ. 2020-09-22T04:43:50.13 0.6 negative manual P 64 0.4721 50 -0.21 46
IV.CESX.HHZ. 2020-09-22T04:43:49.44 0.3 undecidable manual S 165 0.2257 107 -0.04 75
IV.NRCA.HHZ. 2020-09-22T04:43:49.51 0.1 positive manual P 89 0.4443 50 -0.35 89
IV.MURB.HHZ. 2020-09-22T04:43:49.52 0.1 undecidable manual P 2 0.4353 50 -0.2 93
IV.LNSS.HHZ. 2020-09-22T04:43:49.64 0.1 positive manual P 120 0.4506 50 -0.33 90
IV.ATCC.EHZ. 2020-09-22T04:43:48.28 0.1 undecidable manual P 15 0.3705 50 -0.32 91
IV.MGAB.HHZ. 2020-09-22T04:43:47.15 0.1 undecidable manual P 286 0.3031 103 -0.14 96
IV.ARRO.EHZ. 2020-09-22T04:43:47.26 0.6 positive manual P 143 0.3121 102 -0.22 47
IV.CESI.HHZ. 2020-09-22T04:43:47.84 0.1 undecidable manual P 58 0.3399 50 -0.24 94
IV.GAVE.EHZ. 2020-09-22T04:43:47.10 0.6 positive manual P 115 0.3139 102 -0.42 45
IV.CESX.HHZ. 2020-09-22T04:43:45.60 0.6 positive manual P 165 0.2257 107 -0.04 50
IV.ASSB.HHZ. 2020-09-22T04:43:45.96 0.1 undecidable manual P 27 0.2419 106 -0.01 100
IT.GNU.HGZ. 2020-09-22T04:43:43.72 0.6 undecidable manual S 118 0.0513 143 0.07 51
IV.MOMA.HNZ. 2020-09-22T04:43:43.73 0.6 undecidable manual S 117 0.0504 143 0.08 51
IV.MOMA.HNZ. 2020-09-22T04:43:42.65 0.1 positive manual P 117 0.0504 143 0.38 96
IT.GNU.HGZ. 2020-09-22T04:43:42.64 0.1 positive manual P 118 0.0513 143 0.37 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHE. ML:0 0.007365 0.36 AML other m 2020-09-22T04:43:44.18
IV.MOMA.HHN. ML:0 0.00556 0.2 AML other m 2020-09-22T04:43:44.16
IV.MOMA.HNE. ML:0 0.006565 0.36 AML other m 2020-09-22T04:43:45.18
IV.MOMA.HNN. ML:0 0.00531 0.22 AML other m 2020-09-22T04:43:45.16
IV.ASSB.HHN. ML:1.6 0.0002225 0.46 AML other m 2020-09-22T04:43:50.31
IV.ASSB.HHE. ML:1.7 0.000269 0.42 AML other m 2020-09-22T04:43:50.22
IV.CESX.HHN. ML:1.8 0.0004065 0.62 AML other m 2020-09-22T04:43:50.64
IV.CESX.HHE. ML:1.8 0.0003435 0.76 AML other m 2020-09-22T04:43:52.45
IV.GAVE.EHN. ML:2.1 0.0005975 1.16 AML other m 2020-09-22T04:43:53.22
IV.MGAB.HHE. ML:1.9 0.000336 0.1 AML other m 2020-09-22T04:43:53.41
IV.MGAB.HNE. ML:1.8 0.000287 0.1 AML other m 2020-09-22T04:43:53.41
IV.GAVE.EHE. ML:2.3 0.000903 1.82 AML other m 2020-09-22T04:43:54.04
IV.ARRO.EHN. ML:1.9 0.0003205 1.3 AML other m 2020-09-22T04:43:54.16
IV.ARRO.EHE. ML:1.9 0.000319 1.06 AML other m 2020-09-22T04:43:55.24
IV.CESI.HHE. ML:1.6 0.000162 0.24 AML other m 2020-09-22T04:43:55.39
IV.MGAB.HHN. ML:1.9 0.000372 0.74 AML other m 2020-09-22T04:43:55.56
IV.MGAB.HNN. ML:1.9 0.000347 0.72 AML other m 2020-09-22T04:43:55.57
IV.CESI.HHN. ML:1.7 0.000199 1.24 AML other m 2020-09-22T04:43:55.72
IV.ATCC.EHE. ML:1.8 0.0002 0.36 AML other m 2020-09-22T04:43:56.25
IV.ATCC.EHN. ML:1.7 0.0001615 1.32 AML other m 2020-09-22T04:43:56.24
IV.NRCA.HHN. ML:2.1 0.00034 0.12 AML other m 2020-09-22T04:43:57.54
IV.LNSS.HHE. ML:2.1 0.0003005 0.28 AML other m 2020-09-22T04:43:58.17
IV.NRCA.HNN. ML:2.1 0.0003175 0.9 AML other m 2020-09-22T04:43:58.54
IV.FDMO.HHN. ML:1.6 9.655E-5 0.2 AML other m 2020-09-22T04:43:58.20
IV.NRCA.HNE. ML:2 0.000296 0.7 AML other m 2020-09-22T04:43:58.53
IV.LNSS.HHN. ML:2.1 0.000363 0.38 AML other m 2020-09-22T04:43:58.61
IV.MURB.HHE. ML:2.3 0.0005175 1.66 AML other m 2020-09-22T04:43:58.96
IV.MURB.HNE. ML:2.3 0.000554 1.7 AML other m 2020-09-22T04:43:58.98
IV.MURB.HHN. ML:2.3 0.0005745 0.94 AML other m 2020-09-22T04:43:59.11
IV.MURB.HNN. ML:2.3 0.0005235 0.94 AML other m 2020-09-22T04:43:59.11
IV.NRCA.HHE. ML:2 0.0002885 0.38 AML other m 2020-09-22T04:43:59.79
IV.FDMO.HHE. ML:1.6 0.0001021 0.46 AML other m 2020-09-22T04:43:59.59
IV.CSP1.EHN. ML:2 0.00021 0.24 AML other m 2020-09-22T04:44:02.89
IV.GUMA.HHE. ML:2.2 0.000233 0.32 AML other m 2020-09-22T04:44:04.25
IV.SMA1.EHE. ML:2.4 0.000395 0.3 AML other m 2020-09-22T04:44:04.63
IV.SMA1.EHN. ML:2.2 0.000243 0.3 AML other m 2020-09-22T04:44:04.56
IV.ATVO.HHN. ML:1.6 7.405E-5 0.72 AML other m 2020-09-22T04:44:04.97
IV.GUMA.HHN. ML:2.1 0.0002115 0.82 AML other m 2020-09-22T04:44:04.33
IV.EL6.EHN. ML:1.6 7.195E-5 0.12 AML other m 2020-09-22T04:44:04.78
IV.CSP1.EHE. ML:1.9 0.0001675 0.36 AML other m 2020-09-22T04:44:04.83
IV.CAFI.HHE. ML:1.4 3.82E-5 1.36 AML other m 2020-09-22T04:44:05.06
IV.ATMI.HHE. ML:2.1 0.000263 1.26 AML other m 2020-09-22T04:44:05.92
IV.RM33.EHN. ML:1.7 8.755E-5 0.32 AML other m 2020-09-22T04:44:05.51
IV.ATVO.HHE. ML:1.6 8.15E-5 0.8 AML other m 2020-09-22T04:44:05.57
IV.ATMI.HHN. ML:2.1 0.0002655 1.14 AML other m 2020-09-22T04:44:05.85
IV.SRES.HHN. ML:1.9 0.0001375 1.06 AML other m 2020-09-22T04:44:06.58
IV.ATPI.EHE. ML:1.5 5.45E-5 0.38 AML other m 2020-09-22T04:44:07.02
IV.RM33.EHE. ML:1.8 0.0001028 0.4 AML other m 2020-09-22T04:44:07.52
IV.FIAM.HHN. ML:1.5 3.93E-5 0.3 AML other m 2020-09-22T04:44:08.02
IV.ATPI.EHN. ML:1.5 5.58E-5 1.3 AML other m 2020-09-22T04:44:08.72
IV.CAFI.HHN. ML:1.4 3.835E-5 0.52 AML other m 2020-09-22T04:44:08.16
IV.EL6.EHE. ML:1.7 7.885E-5 1.12 AML other m 2020-09-22T04:44:08.06
IV.FIAM.HHE. ML:1.3 3.05E-5 0.5 AML other m 2020-09-22T04:44:08.57
IV.BADI.EHN. ML:1.5 4.43E-5 0.52 AML other m 2020-09-22T04:44:09.94
IV.BADI.EHE. ML:1.6 4.98E-5 0.66 AML other m 2020-09-22T04:44:09.40
IV.SRES.HHE. ML:1.7 9.07E-5 0.36 AML other m 2020-09-22T04:44:09.77
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download