Earthquake with magnitude of ML 0.8 on date 01-01-2020 and time 05:37:46 (Italy) in region 5 km SW Norcia (PG)

A magnitude ML 0.8 earthquake occured in region: 5 km SW Norcia (PG), on

  • 01-01-2020 04:37:46 (UTC)
  • 01-01-2020 05:37:46 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.7610, 13.0520 at 11 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 6 3217 8174
Poggiodomo PG 11 117 8291
Cerreto di Spoleto PG 13 1075 9366
Preci PG 13 724 10090
Monteleone di Spoleto PG 15 599 10689
Vallo di Nera PG 15 364 11053
Castelsantangelo sul Nera MC 17 281 11334
Sellano PG 18 1079 12413
Accumoli RI 18 667 13080
Sant'Anatolia di Narco PG 18 564 13644
Cittareale RI 18 482 14126
Scheggino PG 19 461 14587
Visso MC 19 1107 15694

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km SE of Foligno (57155 inhabitants)
40 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
55 Km W of Teramo (54892 inhabitants)
66 Km SE of Perugia (166134 inhabitants)
86 Km E of Viterbo (67173 inhabitants)
89 Km NE of Guidonia Montecelio (88673 inhabitants)
91 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 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 2020-01-01
04:37:46
42.7612 13.0515 11 2020-01-01
04:48:39
Sala Sismica INGV-Roma 75158961
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-01 04:37:46 ± 0.07
Latitude 42.7612 ± 0.0027
Longitude 13.0515 ± 0.0098
Depth (km) 11 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75158961

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 820
Semi-minor axis of confidence ellipse (meter) 227
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) 820.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 182
Number of associated phases, regardless of their use for origin computation 9
Number of defining phases 9
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.08544
Epicentral distance of station farthest from the epicenter (degree) 0.27609
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.0
Num. used stations 4
Type of magnitude ML
Reference to an origin 75158961
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-01 04:48:39
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.FDMO.HHZ. 2020-01-01T04:37:57.68 0.6 undecidable manual S 5 30.6471 50 -0.03 66
IV.MMO1.EHZ. 2020-01-01T04:37:56.76 0.6 undecidable manual S 56 27.1506 50 0 67
IV.FDMO.HHZ. 2020-01-01T04:37:53.02 1.0 undecidable manual P 5 30.6471 50 -0.15 32
IV.LNSS.HHZ. 2020-01-01T04:37:53.96 0.6 undecidable manual S 183 17.5713 121 -0.14 66
IV.MMO1.EHZ. 2020-01-01T04:37:52.60 1.0 positive manual P 56 27.1506 50 -0.02 33
IV.LNSS.HHZ. 2020-01-01T04:37:51.19 0.3 negative manual P 183 17.5713 121 0.1 100
IV.MC2.EHZ. 2020-01-01T04:37:51.64 0.6 negative manual P 34 20.0688 118 0.12 66
IV.NRCA.HHZ. 2020-01-01T04:37:51.78 0.6 undecidable manual S 32 9.4794 138 -0.14 67
IV.NRCA.HHZ. 2020-01-01T04:37:49.95 0.6 undecidable manual P 32 9.4794 138 0.12 67
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 0.00006759999999999999 0.46 AML other m 2020-01-01T04:37:52.43
IV.NRCA.HHN. ML:0.8 0.00006769999999999999 0.76 AML other m 2020-01-01T04:37:52.83
IV.LNSS.HHE. ML:0.8 0.00004905 0.12 AML other m 2020-01-01T04:37:54.32
IV.LNSS.HHN. ML:0.8 0.000048049999999999996 0.14 AML other m 2020-01-01T04:37:54.38
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