Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.8 on date 05-03-2021 and time 19:58:49 (Italy) in region 3 km E Spoleto (PG)

A magnitude ML 1.8 earthquake occured in region: 3 km E Spoleto (PG), on

  • 05-03-2021 18:58:49 (UTC)
  • 05-03-2021 19:58:49 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7410, 12.7760 at 10 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.

Hai sentito il terremoto? Clicca qui

Did you feel it? Fill in the questionnaire.

Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Spoleto PG 3 38218 38218
Sant'Anatolia di Narco PG 5 564 38782
Scheggino PG 6 461 39243
Vallo di Nera PG 8 364 39607
Campello sul Clitunno PG 9 2442 42049
Castel Ritaldi PG 13 3278 45327
Poggiodomo PG 13 117 45444
Ferentillo TR 13 1913 47357
Cerreto di Spoleto PG 15 1075 48432
Trevi PG 15 8469 56901
Montefranco TR 16 1276 58177
Arrone TR 18 2763 60940
Monteleone di Spoleto PG 18 599 61539
Polino TR 18 233 61772
Giano dell'Umbria PG 19 3846 65618
Acquasparta TR 20 4778 70396
Cascia PG 20 3217 73613
Montefalco PG 20 5679 79292

Municipalities with at least 50000 inhabitants

An earthquake occurred to
23 Km NE of Terni (111501 inhabitants)
25 Km S of Foligno (57155 inhabitants)
52 Km SE of Perugia (166134 inhabitants)
66 Km NE of Viterbo (67173 inhabitants)
67 Km NW of L'Aquila (69753 inhabitants)
76 Km W of Teramo (54892 inhabitants)
82 Km N of Guidonia Montecelio (88673 inhabitants)
86 Km N of Tivoli (56533 inhabitants)
97 Km N of Roma (2864731 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 1.8 2021-03-05
18:58:49		 42.7413 12.7765 10 2021-07-12
16:55:02		 Bollettino Sismico Italiano INGV 88275411
Reviewed
Rev100 		ML 1.8 2021-03-05
18:58:49		 42.7383 12.773 9 2021-03-05
19:12:00		 Sala Sismica INGV-Roma 87791191
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-03-05 18:58:49 ± 0.05
Latitude 42.7413 ± 0.0027
Longitude 12.7765 ± 0.0037
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 88275411

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 368
Semi-minor axis of confidence ellipse (meter) 270
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) 370.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 54
Number of associated phases, regardless of their use for origin computation 54
Number of defining phases 54
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.09893
Epicentral distance of station farthest from the epicenter (degree) 0.81299
Number of stations at which the event was observed 28
Number of stations from which data was used for origin computation 28
Magnitudes information

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 44
Type of magnitude ML
Reference to an origin 88275411
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-03-25 15:00:14

ML:1.8

Field Value
Value 1.8
Uncertainty 0.3
Num. used stations 46
Type of magnitude ML
Reference to an origin 87791191
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-03-05 19:12:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSFR.HHZ. 2021-03-05T18:59:13.40 0.6 undecidable manual S 0 77.0673 50 0.67 38
IV.EL6.EHZ. 2021-03-05T18:59:11.68 0.6 undecidable manual S 22 70.374 50 0.75 37
IV.TERO.HHZ. 2021-03-05T18:59:10.53 0.6 undecidable manual S 101 68.7756 50 0.04 45
IV.MF5.EHZ. 2021-03-05T18:59:09.63 0.6 undecidable manual S 64 61.8936 50 0.96 34
IV.GUMA.HHZ. 2021-03-05T18:59:08.37 0.6 undecidable manual S 52 57.6978 50 0.81 37
IV.FOSV.EHZ. 2021-03-05T18:59:08.10 0.6 undecidable manual S 359 61.3941 50 -0.44 42
IV.FIAM.HHZ. 2021-03-05T18:59:08.13 0.6 undecidable manual S 152 59.3961 50 0.12 45
IV.MGAB.HHZ. 2021-03-05T18:59:07.85 0.6 undecidable manual S 290 57.2982 50 0.41 43
IV.ATCC.EHZ. 2021-03-05T18:59:06.01 0.3 undecidable manual S 347 50.5161 50 0.39 65
IV.CSP1.EHZ. 2021-03-05T18:59:06.28 0.6 undecidable manual S 42 52.2033 50 0.21 45
IV.PIEI.HHZ. 2021-03-05T18:59:05.05 0.3 undecidable manual P 348 90.243 50 0.18 63
IV.SMA1.EHZ. 2021-03-05T18:59:05.09 0.6 undecidable manual S 105 47.2194 50 0.35 44
IV.MMO1.EHZ. 2021-03-05T18:59:04.96 0.6 undecidable manual S 68 48.1185 50 -0.02 47
IV.FDMO.HHZ. 2021-03-05T18:59:03.03 0.6 undecidable manual S 38 41.3253 50 -0.15 47
IV.RM33.EHZ. 2021-03-05T18:59:03.85 0.6 undecidable manual S 126 44.0226 50 -0.06 47
IV.SACS.HHE. 2021-03-05T18:59:02.09 0.3 undecidable manual P 280 71.5728 50 0.11 67
IV.MC2.EHZ. 2021-03-05T18:59:02.64 0.6 undecidable manual S 61 38.5281 50 0.22 46
IV.SSFR.HHZ. 2021-03-05T18:59:02.78 0.1 undecidable manual P 0 77.0673 50 -0.06 89
IV.TERO.HHZ. 2021-03-05T18:59:01.50 0.3 undecidable manual P 101 68.7756 50 -0.05 68
IV.EL6.EHZ. 2021-03-05T18:59:01.78 0.3 undecidable manual P 22 70.374 50 -0.02 68
IV.MF5.EHZ. 2021-03-05T18:59:00.88 0.3 undecidable manual P 64 61.8936 50 0.39 64
IT.MTCL.HGZ. 2021-03-05T18:59:00.56 0.6 undecidable manual S 33 33.3444 50 -0.49 44
IV.GUMA.HHZ. 2021-03-05T18:59:00.12 0.3 undecidable manual P 52 57.6978 50 0.27 66
IV.FEMA.HNE. 2021-03-05T18:59:00.85 0.6 undecidable manual S 42 33.0447 50 -0.12 48
IV.CESI.HHZ. 2021-03-05T18:59:00.08 0.6 undecidable manual S 20 31.0467 50 -0.35 45
IV.FOSV.EHZ. 2021-03-05T18:59:00.35 0.3 undecidable manual P 359 61.3941 50 -0.07 68
IV.FIAM.HHZ. 2021-03-05T18:59:00.33 0.6 undecidable manual P 152 59.3961 50 0.21 44
IV.NRCA.HHZ. 2021-03-05T18:58:59.60 0.6 undecidable manual S 69 29.3484 50 -0.38 45
IV.MGAB.HHZ. 2021-03-05T18:58:59.78 0.3 undecidable manual P 290 57.2982 50 0 70
IV.CSP1.EHZ. 2021-03-05T18:58:58.78 0.1 undecidable manual P 42 52.2033 50 -0.22 90
IT.FOPC.HGN. 2021-03-05T18:58:58.79 0.6 undecidable manual S 347 26.0517 110 -0.15 48
IV.LNSS.HHZ. 2021-03-05T18:58:58.84 0.6 undecidable manual S 125 26.4513 110 -0.23 47
IV.MMO1.EHZ. 2021-03-05T18:58:58.22 0.3 undecidable manual P 68 48.1185 50 -0.15 69
IV.ATCC.EHZ. 2021-03-05T18:58:58.54 0.3 undecidable manual P 347 50.5161 50 -0.19 68
IV.SMA1.EHZ. 2021-03-05T18:58:58.15 0.1 undecidable manual P 105 47.2194 50 -0.08 94
IV.RM33.EHZ. 2021-03-05T18:58:57.46 0.1 undecidable manual P 126 44.0226 50 -0.28 90
IV.CESX.HHZ. 2021-03-05T18:58:57.10 0.6 undecidable manual S 226 21.3675 114 -0.33 46
IV.ARRO.EHZ. 2021-03-05T18:58:56.48 0.6 undecidable manual S 183 17.9709 118 0.09 49
IV.MC2.EHZ. 2021-03-05T18:58:56.76 0.3 undecidable manual P 61 38.5281 50 -0.13 71
IV.FDMO.HHZ. 2021-03-05T18:58:56.99 0.1 undecidable manual P 38 41.3253 50 -0.34 90
IT.GNU.HGE. 2021-03-05T18:58:56.53 0.6 undecidable manual S 293 18.1707 117 0.09 49
IV.MOMA.HHZ. 2021-03-05T18:58:56.52 0.6 undecidable manual S 293 18.1707 117 0.08 49
IV.NRCA.HHZ. 2021-03-05T18:58:55.20 0.1 positive manual P 69 29.3484 50 -0.27 93
IV.CESI.HHZ. 2021-03-05T18:58:55.48 0.1 undecidable manual P 20 31.0467 50 -0.26 93
IT.MTCL.HGZ. 2021-03-05T18:58:55.76 0.3 undecidable manual P 33 33.3444 50 -0.34 68
IV.FEMA.HNE. 2021-03-05T18:58:55.90 0.1 undecidable manual P 42 33.0447 50 -0.15 94
IV.GAVE.EHZ. 2021-03-05T18:58:54.86 0.6 undecidable manual S 120 10.9779 131 0.49 46
IV.LNSS.HHZ. 2021-03-05T18:58:54.80 0.1 negative manual P 125 26.4513 110 -0.16 96
IT.FOPC.HGN. 2021-03-05T18:58:54.97 0.3 undecidable manual P 347 26.0517 110 0.09 73
IV.MOMA.HHZ. 2021-03-05T18:58:53.44 0.1 negative manual P 293 18.1707 117 0 100
IT.GNU.HGE. 2021-03-05T18:58:53.45 0.3 undecidable manual P 293 18.1707 117 0.02 75
IV.ARRO.EHZ. 2021-03-05T18:58:53.56 0.1 undecidable manual P 183 17.9709 118 0.16 97
IV.CESX.HHZ. 2021-03-05T18:58:53.87 0.1 positive manual P 226 21.3675 114 -0.14 97
IV.GAVE.EHZ. 2021-03-05T18:58:52.55 0.1 negative manual P 120 10.9779 131 0.31 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GAVE.EHN. ML:2.2 0.00193 0.4 AML other m 2021-03-05T18:58:55.25
IV.GAVE.HNN. ML:1.7 0.000606 0.4 AML other m 2021-03-05T18:58:55.25
IV.GAVE.HNE. ML:2.1 0.0017000000000000001 0.24 AML other m 2021-03-05T18:58:56.03
IV.GAVE.EHE. ML:2.1 0.001615 0.24 AML other m 2021-03-05T18:58:56.03
IV.MOMA.HNN. ML:1.9 0.0007155 0.22 AML other m 2021-03-05T18:58:56.78
IV.MOMA.HHN. ML:2.0 0.0007555000000000001 0.2 AML other m 2021-03-05T18:58:56.78
IV.ARRO.EHE. ML:2.1 0.0010789999999999999 0.24 AML other m 2021-03-05T18:58:56.80
IV.ARRO.EHN. ML:1.9 0.000628 1.82 AML other m 2021-03-05T18:58:57.91
IV.MOMA.HHE. ML:2.0 0.0008885000000000001 0.14 AML other m 2021-03-05T18:58:57.39
IV.MOMA.HNE. ML:2.0 0.000848 0.12 AML other m 2021-03-05T18:58:57.39
IV.CESX.HHN. ML:1.7 0.000367 0.8 AML other m 2021-03-05T18:58:58.67
IV.CESX.HHE. ML:1.7 0.0003715 1.3 AML other m 2021-03-05T18:58:58.14
IV.LNSS.HHE. ML:1.8 0.0003955 0.62 AML other m 2021-03-05T18:58:59.43
IV.LNSS.HHN. ML:1.8 0.000368 1.22 AML other m 2021-03-05T18:58:59.66
IV.NRCA.HHN. ML:2.2 0.0007009999999999999 0.12 AML other m 2021-03-05T18:58:59.77
IV.NRCA.HNN. ML:2.2 0.00076 1.36 AML other m 2021-03-05T18:59:00.09
IV.NRCA.HNE. ML:2.1 0.0006255 0.12 AML other m 2021-03-05T18:59:00.29
IV.NRCA.HHE. ML:2.1 0.000676 0.12 AML other m 2021-03-05T18:59:00.29
IV.FDMO.HHE. ML:1.6 0.00011850000000000001 0.56 AML other m 2021-03-05T18:59:04.52
IV.FDMO.HHN. ML:1.4 0.0000814 0.62 AML other m 2021-03-05T18:59:04.58
IV.RM33.EHE. ML:1.6 0.00011249999999999998 0.18 AML other m 2021-03-05T18:59:05.32
IV.RM33.EHN. ML:1.5 0.0000896 1.18 AML other m 2021-03-05T18:59:05.22
IV.SMA1.EHN. ML:1.6 0.000118 0.54 AML other m 2021-03-05T18:59:06.53
IV.SMA1.EHE. ML:1.8 0.000187 0.26 AML other m 2021-03-05T18:59:06.54
IV.ATCC.EHN. ML:1.9 0.000216 0.32 AML other m 2021-03-05T18:59:06.70
IV.CSP1.EHN. ML:2.1 0.00029049999999999996 1.82 AML other m 2021-03-05T18:59:06.00
IV.ATCC.EHE. ML:1.9 0.0002215 0.4 AML other m 2021-03-05T18:59:06.72
IV.CSP1.EHE. ML:1.9 0.000194 0.24 AML other m 2021-03-05T18:59:07.30
IV.MGAB.HHN. ML:1.6 0.00008075 0.16 AML other m 2021-03-05T18:59:08.26
IV.MGAB.HHE. ML:1.5 0.0000691 0.42 AML other m 2021-03-05T18:59:09.06
IV.GUMA.HHN. ML:1.6 0.0000852 0.56 AML other m 2021-03-05T18:59:09.04
IV.SRES.HHN. ML:1.2 0.0000334 1.46 AML other m 2021-03-05T18:59:10.19
IV.SRES.HHE. ML:1.1 0.000024500000000000003 0.9 AML other m 2021-03-05T18:59:10.94
IV.FIAM.HHE. ML:1.1 0.000026549999999999998 1.12 AML other m 2021-03-05T18:59:11.19
IV.FIAM.HHN. ML:1.1 0.00002465 1.48 AML other m 2021-03-05T18:59:11.93
IV.TERO.HHN. ML:1.4 0.000038849999999999996 0.1 AML other m 2021-03-05T18:59:11.40
IV.GUMA.HHE. ML:1.8 0.00013450000000000002 0.42 AML other m 2021-03-05T18:59:11.68
IV.TERO.HHE. ML:1.2 0.00003095 0.12 AML other m 2021-03-05T18:59:12.46
IV.EL6.EHE. ML:2.1 0.00019700000000000002 1.54 AML other m 2021-03-05T18:59:12.94
IV.EL6.EHN. ML:2.0 0.000153 0.14 AML other m 2021-03-05T18:59:13.25
IV.SSFR.HHN. ML:2.0 0.000155 1.18 AML other m 2021-03-05T18:59:15.01
IV.SSFR.HHE. ML:2.1 0.000169 0.2 AML other m 2021-03-05T18:59:15.48
IV.PIEI.HHN. ML:1.6 0.000042550000000000004 0.22 AML other m 2021-03-05T18:59:18.84
IV.PIEI.HHE. ML:1.6 0.000047850000000000004 1 AML other m 2021-03-05T18:59:19.61
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