Earthquake with magnitude of ML 0.7 on date 17-03-2020 and time 02:22:43 (UTC) in region 7 km E Norcia (PG)

A magnitude ML 0.7 earthquake occured in region: 7 km E Norcia (PG), on

  • 17-03-2020 02:22:43 (UTC)
  • 17-03-2020 03:22:43 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.18 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 7 4957 4957
Castelsantangelo sul Nera MC 10 281 5238
Arquata del Tronto AP 11 1178 6416
Montegallo AP 13 523 6939
Preci PG 14 724 7663
Accumoli RI 14 667 8330
Ussita MC 15 444 8774
Visso MC 15 1107 9881
Montemonaco AP 16 604 10485
Cascia PG 17 3217 13702
Acquasanta Terme AP 20 2916 16618
Montefortino FM 20 1178 17796

Municipalities with at least 50000 inhabitants

An earthquake occurred to
42 Km E of Foligno (57155 inhabitants)
46 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
54 Km NW of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
86 Km W of Montesilvano (53738 inhabitants)
93 Km W of Pescara (121014 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
96 Km NW of Chieti (51815 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km E of Viterbo (67173 inhabitants)
99 Km NE of Tivoli (56533 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
Rev 100 ML 0.7 2020-03-17
02:22:43
42.81 13.18 11 2020-03-17
02:29:07
Sala Sismica INGV-Roma 77315281
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-17 02:22:43 ± 0.06
Latitude 42.81 ± 0.00
Longitude 13.18 ± 0.01
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 77315281

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 499
Semi-minor axis of confidence ellipse (meter) 314
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 80
Circular confidence region, given by single value of horizontal uncertainty (meter) 500
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 91
Number of associated phases, regardless of their use for origin computation 23
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.05126
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
Magnitude information

ML:0.7

Field Value
Value 0.7
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 77315281
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-17 02:29:07
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.CESI.HHZ. 2020-03-17T02:22:54.01 0.6 undecidable manual S 314 0.2788 50 0.1 48
IV.MF5.EHZ. 2020-03-17T02:22:54.48 0.3 undecidable manual S 49 0.2725 50 0.75 60
IV.CSP1.EHZ. 2020-03-17T02:22:53.80 0.6 undecidable manual S 4 0.2824 50 -0.21 47
IV.LNSS.HNZ. 2020-03-17T02:22:52.71 0.6 undecidable manual S 206 0.2302 50 0.24 47
IV.FDMO.HHZ. 2020-03-17T02:22:52.35 0.6 undecidable manual S 344 0.2356 50 -0.28 47
IV.T1299.EHN. 2020-03-17T02:22:51.37 0.6 undecidable manual S 156 0.1925 50 0.03 50
IV.SMA1.EHZ. 2020-03-17T02:22:51.68 0.3 undecidable manual S 147 0.214 50 -0.31 70
IV.TERO.HHZ. 2020-03-17T02:22:50.82 0.6 undecidable manual P 121 0.3651 50 -0.02 48
IV.RM33.EHE. 2020-03-17T02:22:50.00 0.3 undecidable manual P 175 0.3022 50 0.23 70
IV.MF5.EHZ. 2020-03-17T02:22:49.58 0.3 undecidable manual P 49 0.2725 50 0.32 69
IV.MMO1.EHZ. 2020-03-17T02:22:49.41 0.3 undecidable manual S 51 0.1412 125 -0.39 70
IV.CSP1.EHZ. 2020-03-17T02:22:49.27 0.6 negative manual P 4 0.2824 50 -0.16 48
IV.CESI.HHZ. 2020-03-17T02:22:49.25 0.1 undecidable manual P 314 0.2788 50 -0.12 96
IV.SMA1.EHZ. 2020-03-17T02:22:48.07 0.1 undecidable manual P 147 0.214 50 -0.19 96
IV.MC2.EHZ. 2020-03-17T02:22:48.82 0.3 undecidable manual S 5 0.1016 134 0.2 73
IV.LNSS.HNZ. 2020-03-17T02:22:48.55 0.1 undecidable manual P 206 0.2302 50 0.01 99
IV.FDMO.HHZ. 2020-03-17T02:22:48.49 0.3 undecidable manual P 344 0.2356 50 -0.14 73
IV.FEMA.HNZ. 2020-03-17T02:22:47.44 0.3 undecidable manual P 329 0.1781 50 -0.21 72
IV.NRCA.HHZ. 2020-03-17T02:22:47.48 0.3 undecidable manual S 297 0.0513 152 0.03 77
IV.T1299.EHN. 2020-03-17T02:22:47.90 0.1 undecidable manual P 156 0.1925 50 0.02 100
IV.MC2.EHZ. 2020-03-17T02:22:46.48 0.6 positive manual P 5 0.1016 134 0.17 49
IV.MMO1.EHZ. 2020-03-17T02:22:46.89 0.1 undecidable manual P 51 0.1412 125 -0.11 99
IV.NRCA.HHZ. 2020-03-17T02:22:45.79 0.1 undecidable manual P 297 0.0513 152 0.15 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.1 0.000168 0.16 AML other m 2020-03-17T02:22:48.11
IV.NRCA.HHN. ML:0.9 0.00011725 1.16 AML other m 2020-03-17T02:22:48.15
IV.NRCA.HNE. ML:1 0.000156833555 0.4 AML other m 2020-03-17T02:22:49.92
IV.NRCA.HNN. ML:1.2 0.0002108501 1.1504 AML other m 2020-03-17T02:22:48.16
IV.SMA1.EHE. ML:0.6 2.6335719E-5 0.1392 AML other m 2020-03-17T02:22:52.57
IV.SMA1.EHN. ML:0.6 2.287165E-5 0.1008 AML other m 2020-03-17T02:22:51.86
IV.FDMO.HHE. ML:0.4 1.609967E-5 0.16 AML other m 2020-03-17T02:22:52.49
IV.FDMO.HHN. ML:0.6 1.862811E-5 0.2592 AML other m 2020-03-17T02:22:52.72
IV.CESI.HHE. ML:0.3 1.21964467E-5 0.0992 AML other m 2020-03-17T02:22:54.51
IV.CESI.HHN. ML:0.7 2.283045E-5 0.12 AML other m 2020-03-17T02:22:54.37
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