Earthquake with magnitude of ML 0.9 on date 01-05-2021 and time 05:10:32 (Italy) in region 5 km S Norcia (PG)

A magnitude ML 0.9 earthquake occured in region: 5 km S Norcia (PG), on

  • 01-05-2021 03:10:32 (UTC)
  • 01-05-2021 05:10:32 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.746, 13.109 at 4 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
Norcia PG 5 4957 4957
Cascia PG 8 3217 8174
Accumoli RI 13 667 8841
Poggiodomo PG 15 117 8958
Cittareale RI 15 482 9440
Arquata del Tronto AP 16 1178 10618
Preci PG 16 724 11342
Monteleone di Spoleto PG 17 599 11941
Castelsantangelo sul Nera MC 17 281 12222
Cerreto di Spoleto PG 18 1075 13297
Amatrice RI 20 2657 15954

Municipalities with at least 50000 inhabitants

An earthquake occurred to
41 Km SE of Foligno (57155 inhabitants)
43 Km E of Terni (111501 inhabitants)
50 Km W of Teramo (54892 inhabitants)
50 Km NW of L'Aquila (69753 inhabitants)
71 Km SE of Perugia (166134 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
89 Km W of Montesilvano (53738 inhabitants)
90 Km E of Viterbo (67173 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
96 Km W of Pescara (121014 inhabitants)
97 Km W of Chieti (51815 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 0.9 2021-05-01
03:10:32
42.7457 13.1092 4 2021-05-01
06:54:04
Sala Sismica INGV-Roma 89652571
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-01 03:10:32 ± 0.12
Latitude 42.7457 ± 0.0036
Longitude 13.1092 ± 0.0073
Depth (km) 4 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 89652571

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 630
Semi-minor axis of confidence ellipse (meter) 86
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 77
Circular confidence region, given by single value of horizontal uncertainty (meter) 630
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 130
Number of associated phases, regardless of their use for origin computation 31
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.32
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.41009
Number of stations at which the event was observed 17
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 6
Type of magnitude ML
Reference to an origin 89652571
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-01 06:54:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GIZZ.HHZ. 2021-05-01T03:12:24.07 3.0 undecidable manual Sn -2.08 0
IV.SELL.HHZ. 2021-05-01T03:11:46.85 3.0 positive manual Pg 10.63 0
IV.GIZZ.HHZ. 2021-05-01T03:11:44.20 3.0 undecidable manual Pg 10.62 0
IV.ZCCA.HHZ. 2021-05-01T03:11:22.98 3.0 undecidable manual Sn 0 0
IX.STN3.HNZ.01 2021-05-01T03:11:21.20 3.0 undecidable manual Pg 7.74 0
IV.SAP2.EHN. 2021-05-01T03:10:49.34 0.6 undecidable manual S 31 0.4101 95 0.61 40
IV.MML1.EHE. 2021-05-01T03:10:48.02 0.3 undecidable manual S 345 0.3813 95 0.4 66
IV.MF5.EHN. 2021-05-01T03:10:47.08 0.3 undecidable manual S 47 0.3525 96 0.55 63
IV.CSP1.EHZ. 2021-05-01T03:10:45.73 0.6 undecidable manual S 11 0.3534 96 -0.81 40
IV.CESI.HHE. 2021-05-01T03:10:44.78 0.6 undecidable manual S 330 0.2995 97 0.29 46
IV.FDMO.HHZ. 2021-05-01T03:10:44.42 1.0 undecidable manual S 357 0.2914 97 0.25 23
IV.SAP2.EHN. 2021-05-01T03:10:42.66 0.1 undecidable manual P 31 0.4101 95 0.63 80
IV.RM33.EHE. 2021-05-01T03:10:42.68 0.3 undecidable manual S 162 0.2491 98 0.13 74
IV.MMO1.EHZ. 2021-05-01T03:10:41.39 0.3 undecidable manual S 46 0.2212 99 -0.12 74
IV.MF5.EHN. 2021-05-01T03:10:40.54 0.6 undecidable manual P 47 0.3525 96 -0.22 48
IV.MTRA.EHZ. 2021-05-01T03:10:40.73 0.3 undecidable manual S 87 0.2113 100 -0.39 70
IV.SMA1.EHZ. 2021-05-01T03:10:40.93 0.3 undecidable manual S 125 0.2023 100 0.16 74
IV.CSP1.EHZ. 2021-05-01T03:10:40.32 0.1 undecidable manual P 11 0.3534 96 -0.44 91
IV.MML1.EHE. 2021-05-01T03:10:40.78 0.1 undecidable manual P 345 0.3813 95 -0.61 87
IV.CESI.HHE. 2021-05-01T03:10:39.72 0.6 undecidable manual P 330 0.2995 97 0.14 48
IV.T1299.HNZ. 2021-05-01T03:10:39.72 0.3 undecidable manual S 131 0.1691 102 0.2 74
IV.RM33.EHE. 2021-05-01T03:10:38.32 0.1 undecidable manual P 162 0.2491 98 -0.14 98
IV.FDMO.HHZ. 2021-05-01T03:10:38.95 0.1 undecidable manual P 357 0.2914 97 -0.44 92
IV.LNSS.HHN. 2021-05-01T03:10:38.92 0.6 undecidable manual S 200 0.1511 103 0.06 51
IV.MTRA.EHZ. 2021-05-01T03:10:37.31 0.1 undecidable manual P 87 0.2113 100 -0.32 95
IV.SMA1.EHZ. 2021-05-01T03:10:37.53 0.1 undecidable manual P 125 0.2023 100 0.1 99
IV.MMO1.EHZ. 2021-05-01T03:10:37.85 0.3 undecidable manual P 46 0.2212 99 -0.01 75
IV.NRCA.HHZ. 2021-05-01T03:10:37.06 0.3 undecidable manual S 2 0.0881 112 0.52 71
IV.T1299.HNZ. 2021-05-01T03:10:36.78 0.1 undecidable manual P 131 0.1691 102 0.07 100
IV.LNSS.HHN. 2021-05-01T03:10:36.21 0.1 undecidable manual P 200 0.1511 103 -0.12 99
IV.NRCA.HHZ. 2021-05-01T03:10:35.25 0.1 undecidable manual P 2 0.0881 112 0.26 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.MOMA.HHN. ML:1 2.965E-5 0.32 AML other m 2021-05-01T03:10:33.63
IV.MOMA.HHE. ML:1 3.265E-5 0.16 AML other m 2021-05-01T03:10:33.88
IV.NRCA.HHE. ML:0.9 0.0001495 0.1 AML other m 2021-05-01T03:10:37.89
IV.NRCA.HHN. ML:0.6 7.65E-5 0.64 AML other m 2021-05-01T03:10:38.61
IV.SMA1.EHN. ML:0.8 4.5E-5 0.4 AML other m 2021-05-01T03:10:41.53
IV.SMA1.EHE. ML:0.8 4.37E-5 1.68 AML other m 2021-05-01T03:10:42.11
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