Earthquake with magnitude of ML 1.4 on date 09-03-2020 and time 08:34:08 (Italy) in region 8 km E Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 8 km E Norcia (PG), on

  • 09-03-2020 07:34:08 (UTC)
  • 09-03-2020 08:34:08 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.2 at 9 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 8 4957 4957
Arquata del Tronto AP 9 1178 6135
Accumoli RI 12 667 6802
Castelsantangelo sul Nera MC 12 281 7083
Montegallo AP 13 523 7606
Preci PG 16 724 8330
Montemonaco AP 16 604 8934
Cascia PG 17 3217 12151
Ussita MC 18 444 12595
Acquasanta Terme AP 18 2916 15511
Visso MC 18 1107 16618
Cittareale RI 19 482 17100
Amatrice RI 20 2657 19757

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km E of Foligno (57155 inhabitants)
44 Km W of Teramo (54892 inhabitants)
52 Km NE of Terni (111501 inhabitants)
52 Km NW of L'Aquila (69753 inhabitants)
75 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
91 Km W of Pescara (121014 inhabitants)
94 Km NW of Chieti (51815 inhabitants)
96 Km S of Ancona (100861 inhabitants)
96 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NE of Tivoli (56533 inhabitants)
98 Km E of Viterbo (67173 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 1.4 2020-03-09
07:34:08
42.79 13.2 9 2020-03-09
08:46:51
Sala Sismica INGV-Roma 77147741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-09 07:34:08 ± 0.05
Latitude 42.79 ± 0.00
Longitude 13.20 ± 0.00
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77147741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 425
Semi-minor axis of confidence ellipse (meter) 96
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 59
Circular confidence region, given by single value of horizontal uncertainty (meter) 430
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 129
Number of associated phases, regardless of their use for origin computation 32
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.18
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.34354
Number of stations at which the event was observed 22
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 6
Type of magnitude ML
Reference to an origin 77147741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-09 08:46:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
SI.KOSI.HHZ. 2020-03-09T07:35:49.66 3.0 undecidable manual Sg 14.41 0
IV.SPS2.HHZ. 2020-03-09T07:35:14.70 3.0 positive manual Pg 7.48 0
OT.TAR1.HHZ. 2020-03-09T07:35:05.34 3.0 undecidable manual Pn 2.5 0
IV.PZUN.HHZ. 2020-03-09T07:35:03.88 3.0 positive manual Pg 14.18 0
IV.GATE.HHZ. 2020-03-09T07:35:03.58 3.0 undecidable manual Sn 0.88 0
IT.VNF1.HGZ. 2020-03-09T07:34:54.60 3.0 undecidable manual Sg 2.8 0
IV.RONT.HHZ. 2020-03-09T07:34:37.39 3.0 undecidable manual Sn -0.97 0
IV.TEOL.HHZ. 2020-03-09T07:34:36.37 3.0 undecidable manual Pn -1.44 0
IV.VIVA.HHZ. 2020-03-09T07:34:34.99 3.0 undecidable manual Sg -0.08 0
IT.VNF1.HGZ. 2020-03-09T07:34:28.00 3.0 positive manual Pn -0.77 0
IV.FIR.HHZ. 2020-03-09T07:34:21.75 3.0 undecidable manual P 1.75 0
IV.TERO.HHZ. 2020-03-09T07:34:20.82 0.3 undecidable manual S 119 0.3435 50 -0.32 68
IV.RM33.EHZ. 2020-03-09T07:34:19.31 0.3 undecidable manual S 177 0.2824 50 0 73
IV.CESI.HHZ. 2020-03-09T07:34:19.86 0.3 undecidable manual S 315 0.3013 50 -0.03 73
IV.CSP1.EHZ. 2020-03-09T07:34:19.92 0.3 undecidable manual S 1 0.3004 50 0.06 72
IV.SMA1.EHZ. 2020-03-09T07:34:16.34 0.3 undecidable manual S 147 0.1907 114 0.23 71
IV.TERO.HHZ. 2020-03-09T07:34:15.35 0.1 undecidable manual P 119 0.3435 50 -0.28 91
IV.MF5.EHZ. 2020-03-09T07:34:14.85 0.1 undecidable manual P 44 0.2761 50 0.39 90
IV.RM33.EHZ. 2020-03-09T07:34:14.56 0.1 undecidable manual P 177 0.2824 50 -0.01 97
IV.MTRA.EHZ. 2020-03-09T07:34:14.75 0.3 undecidable manual S 103 0.1511 119 -0.01 75
IV.CESI.HHZ. 2020-03-09T07:34:14.96 0.1 undecidable manual P 315 0.3013 50 0.06 96
IV.MMO1.EHZ. 2020-03-09T07:34:14.32 0.3 undecidable manual S 42 0.1448 120 -0.22 72
IV.CSP1.EHZ. 2020-03-09T07:34:14.85 0.1 undecidable manual P 1 0.3004 50 -0.04 97
IV.MC2.EHZ. 2020-03-09T07:34:13.80 0.3 undecidable manual S 358 0.1205 125 0.06 75
IV.MTRA.EHZ. 2020-03-09T07:34:12.02 0.1 undecidable manual P 103 0.1511 119 0.08 99
IV.SMA1.EHZ. 2020-03-09T07:34:12.80 0.1 undecidable manual P 147 0.1907 114 0.08 98
IV.NRCA.HHZ. 2020-03-09T07:34:12.00 0.3 undecidable manual S 306 0.0728 139 -0.37 71
IV.MMO1.EHZ. 2020-03-09T07:34:11.80 0.1 undecidable manual P 42 0.1448 120 -0.01 100
IV.MC2.EHZ. 2020-03-09T07:34:11.68 1.0 undecidable manual P 358 0.1205 125 0.32 24
IV.ATVO.HHZ. 2020-03-09T07:34:11.82 3.0 negative manual P 1.97 0
IV.ATPI.EHZ. 2020-03-09T07:34:11.72 3.0 undecidable manual P 0.93 0
IV.NRCA.HHZ. 2020-03-09T07:34:10.67 0.1 undecidable manual P 306 0.0728 139 0.1 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.000559 0.18 AML other m 2020-03-09T07:34:12.50
IV.NRCA.HHN. ML:1.5 0.0004935 0.44 AML other m 2020-03-09T07:34:12.36
IV.SMA1.EHE. ML:0.9 5.71E-5 0.42 AML other m 2020-03-09T07:34:16.60
IV.SMA1.EHN. ML:0.8 5.1E-5 0.48 AML other m 2020-03-09T07:34:17.79
IV.NRCA.HNE. ML:1.5 0.00052922655 0.192 AML other m 2020-03-09T07:34:12.41
IV.NRCA.HNN. ML:1.5 0.00047858285 0.16 AML other m 2020-03-09T07:34:12.36
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