Earthquake with magnitude of ML 1.2 on date 06-04-2020 and time 16:41:01 (Italy) in region 6 km NE Norcia (PG)

A magnitude ML 1.2 earthquake occured in region: 6 km NE Norcia (PG), on

  • 06-04-2020 14:41:01 (UTC)
  • 06-04-2020 16:41:01 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.84, 13.14 at 10 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 6 4957 4957
Castelsantangelo sul Nera MC 7 281 5238
Preci PG 10 724 5962
Visso MC 11 1107 7069
Ussita MC 12 444 7513
Arquata del Tronto AP 14 1178 8691
Montegallo AP 16 523 9214
Montemonaco AP 17 604 9818
Cascia PG 17 3217 13035
Accumoli RI 18 667 13702
Cerreto di Spoleto PG 19 1075 14777
Sellano PG 19 1079 15856
Bolognola MC 19 142 15998

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
50 Km W of Teramo (54892 inhabitants)
51 Km NE of Terni (111501 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
90 Km W of Montesilvano (53738 inhabitants)
92 Km SW of Ancona (100861 inhabitants)
97 Km E of Viterbo (67173 inhabitants)
97 Km W of Pescara (121014 inhabitants)
99 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NW of Chieti (51815 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 1.2 2020-04-06
14:41:01
42.84 13.14 10 2020-04-06
14:48:57
Sala Sismica INGV-Roma 77953001
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-06 14:41:01 ± 0.06
Latitude 42.84 ± 0.00
Longitude 13.14 ± 0.00
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77953001

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 438
Semi-minor axis of confidence ellipse (meter) 268
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 50
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.22
Epicentral distance of station closest to the epicenter (degree) 0.02158
Epicentral distance of station farthest from the epicenter (degree) 0.4002
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:1.2

Field Value
Value 1.2
Uncertainty 0.3
Num. used stations 19
Type of magnitude ML
Reference to an origin 77953001
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-06 14:48:57
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-04-06T14:41:16.03 0.3 undecidable manual S 122 0.4002 50 -0.46 66
IV.MF5.EHZ. 2020-04-06T14:41:13.44 0.3 undecidable manual S 57 0.2761 50 0.62 64
IV.CSP1.EHZ. 2020-04-06T14:41:12.18 0.3 undecidable manual S 10 0.259 50 -0.12 73
IV.CESI.HHZ. 2020-04-06T14:41:11.81 0.3 undecidable manual S 314 0.2419 50 -0.01 75
IV.LNSS.HHE. 2020-04-06T14:41:11.90 0.3 undecidable manual S 198 0.2455 50 -0.02 75
IV.T1299.EHZ. 2020-04-06T14:41:11.45 0.3 undecidable manual S 153 0.2266 50 0.09 74
IV.TERO.HHZ. 2020-04-06T14:41:10.44 0.3 undecidable manual P 122 0.4002 50 0.09 72
IV.FDMO.HHZ. 2020-04-06T14:41:10.25 0.3 undecidable manual S 348 0.2032 114 -0.29 72
IV.MTRA.EHZ. 2020-04-06T14:41:10.28 0.3 undecidable manual S 113 0.2023 114 -0.21 73
IT.MTCL.HGE. 2020-04-06T14:41:09.77 0.3 undecidable manual S 326 0.1889 116 -0.25 72
IV.MMO1.EHZ. 2020-04-06T14:41:08.20 0.3 undecidable manual S 65 0.1484 121 -0.44 70
IV.FEMA.HNE. 2020-04-06T14:41:08.58 0.3 undecidable manual S 331 0.143 122 0.12 75
IV.MF5.EHZ. 2020-04-06T14:41:08.55 0.3 undecidable manual P 57 0.2761 50 0.32 70
IV.MC2.EHZ. 2020-04-06T14:41:07.09 0.3 undecidable manual S 24 0.0818 138 0.44 71
IV.MTRA.EHZ. 2020-04-06T14:41:07.02 0.3 undecidable manual P 113 0.2023 114 0.14 74
IV.CESI.HHZ. 2020-04-06T14:41:07.59 0.3 undecidable manual P 314 0.2419 50 -0.06 75
IV.LNSS.HHE. 2020-04-06T14:41:07.69 0.3 undecidable manual P 198 0.2455 50 -0.02 75
IV.CSP1.EHZ. 2020-04-06T14:41:07.76 0.3 undecidable manual P 10 0.259 50 -0.17 73
IV.T1299.EHZ. 2020-04-06T14:41:07.37 0.3 undecidable manual P 153 0.2266 50 -0.01 76
IT.MTCL.HGE. 2020-04-06T14:41:06.50 0.3 undecidable manual P 326 0.1889 116 -0.11 75
IV.FDMO.HHZ. 2020-04-06T14:41:06.74 0.1 undecidable manual P 348 0.2032 114 -0.17 98
IV.MMO1.EHZ. 2020-04-06T14:41:05.65 0.1 undecidable manual P 65 0.1484 121 -0.17 99
IV.NRCA.HHZ. 2020-04-06T14:41:05.54 0.3 undecidable manual S 261 0.0216 167 0 79
IV.FEMA.HNE. 2020-04-06T14:41:05.87 0.3 undecidable manual P 331 0.143 122 0.16 74
IV.NRCA.HHZ. 2020-04-06T14:41:04.26 0.1 undecidable manual P 261 0.0216 167 0.24 100
IV.MC2.EHZ. 2020-04-06T14:41:04.89 0.1 negative manual P 24 0.0818 138 0.23 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.7 0.00088217 0.0576 AML other m 2020-04-06T14:41:05.66
IV.NRCA.HNE. ML:1.6 0.0007609069 0.0576 AML other m 2020-04-06T14:41:05.70
IV.NRCA.HNN. ML:1.7 0.00090381715 0.0704 AML other m 2020-04-06T14:41:05.74
IV.NRCA.HHN. ML:1.7 0.00095683995 0.0576 AML other m 2020-04-06T14:41:05.74
IV.FDMO.HHN. ML:0.6 2.4670015E-5 0.16 AML other m 2020-04-06T14:41:11.06
IV.FDMO.HHE. ML:0.5 1.972366E-5 0.096 AML other m 2020-04-06T14:41:11.06
IV.MTRA.HNN. ML:1.3 0.0001363645 0.5504 AML other m 2020-04-06T14:41:14.92
IV.MTRA.EHN. ML:1 5.8089185E-5 0.2176 AML other m 2020-04-06T14:41:10.48
IV.MTRA.HNE. ML:1.2 0.00010058463 0.352 AML other m 2020-04-06T14:41:10.48
IV.MTRA.EHE. ML:0.9 5.2654535E-5 0.1792 AML other m 2020-04-06T14:41:10.30
IV.CESI.HNE. ML:1.5 0.0001658203 0.8 AML other m 2020-04-06T14:41:11.66
IV.CESI.HNN. ML:1.3 0.00010518399 0.48 AML other m 2020-04-06T14:41:10.70
IV.CESI.HHE. ML:0.9 4.208507E-5 0.1792 AML other m 2020-04-06T14:41:12.15
IV.CESI.HHN. ML:1.1 6.8090335E-5 0.1344 AML other m 2020-04-06T14:41:12.07
IV.CSP1.EHN. ML:0.8 3.4158835E-5 0.1984 AML other m 2020-04-06T14:41:12.30
IV.CSP1.EHE. ML:1 4.504876E-5 0.2624 AML other m 2020-04-06T14:41:12.61
IV.MF5.EHE. ML:1.3 8.3973195E-5 1.92 AML other m 2020-04-06T14:41:20.34
IV.MF5.EHN. ML:1.2 7.9108875E-5 2.2976 AML other m 2020-04-06T14:41:21.01
IV.TERO.HHE. ML:0.5 1.19136585E-5 0.0768 AML other m 2020-04-06T14:41:16.26
IV.TERO.HHN. ML:0.9 2.4279255E-5 0.0576 AML other m 2020-04-06T14:41:16.58
IV.TERO.HNN. ML:1.7 0.0001541247 1.3376 AML other m 2020-04-06T14:41:24.19
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