Earthquake with magnitude of ML 1.4 on date 04-04-2020 and time 20:08:34 (Italy) in region 3 km W Norcia (PG)

A magnitude ML 1.4 earthquake occured in region: 3 km W Norcia (PG), on

  • 04-04-2020 18:08:34 (UTC)
  • 04-04-2020 20:08:34 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.79, 13.06 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 3 4957 4957
Cascia PG 9 3217 8174
Preci PG 10 724 8898
Cerreto di Spoleto PG 12 1075 9973
Poggiodomo PG 13 117 10090
Castelsantangelo sul Nera MC 14 281 10371
Sellano PG 15 1079 11450
Visso MC 16 1107 12557
Vallo di Nera PG 16 364 12921
Monteleone di Spoleto PG 18 599 13520
Ussita MC 18 444 13964
Accumoli RI 19 667 14631
Sant'Anatolia di Narco PG 19 564 15195
Arquata del Tronto AP 20 1178 16373

Municipalities with at least 50000 inhabitants

An earthquake occurred to
34 Km SE of Foligno (57155 inhabitants)
42 Km NE of Terni (111501 inhabitants)
55 Km W of Teramo (54892 inhabitants)
56 Km NW of L'Aquila (69753 inhabitants)
65 Km SE of Perugia (166134 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
92 Km NE of Guidonia Montecelio (88673 inhabitants)
94 Km N of Tivoli (56533 inhabitants)
94 Km W of Montesilvano (53738 inhabitants)
99 Km SW of Ancona (100861 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 1.4 2020-04-04
18:08:34
42.79 13.06 11 2020-04-04
18:24:05
Sala Sismica INGV-Roma 77890061
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-04-04 18:08:34 ± 0.05
Latitude 42.79 ± 0.00
Longitude 13.06 ± 0.00
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 77890061

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 366
Semi-minor axis of confidence ellipse (meter) 235
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 90
Circular confidence region, given by single value of horizontal uncertainty (meter) 370
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 60
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 23
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.3921
Number of stations at which the event was observed 19
Number of stations from which data was used for origin computation 16
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 34
Type of magnitude ML
Reference to an origin 77890061
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-04-04 18:24:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ATFO.HHZ. 2020-04-04T18:08:56.81 3.0 undecidable manual S -2.16 0
IV.ARVD.HHZ. 2020-04-04T18:08:46.07 3.0 undecidable manual P -2.85 0
IV.FDMO.HHZ. 2020-04-04T18:08:44.17 0.6 undecidable manual S 5 0.2464 50 -0.25 47
IV.MTRA.EHZ. 2020-04-04T18:08:44.52 0.6 undecidable manual S 98 0.25 50 0 49
IV.CESI.HHZ. 2020-04-04T18:08:44.15 0.6 undecidable manual S 332 0.2419 50 -0.14 48
IV.TERO.HHZ. 2020-04-04T18:08:43.37 3.0 positive manual P -0.34 0
IV.MMO1.EHZ. 2020-04-04T18:08:43.64 0.6 undecidable manual S 61 0.2239 50 -0.12 48
IV.GUMA.HHZ. 2020-04-04T18:08:42.11 0.1 undecidable manual P 37 0.3381 50 0.26 91
IV.MOMA.HHZ. 2020-04-04T18:08:42.37 0.6 undecidable manual P 272 0.3588 50 0.17 46
IV.LNSS.HHZ. 2020-04-04T18:08:42.55 0.6 undecidable manual S 184 0.1889 50 -0.15 48
IV.MF5.EHZ. 2020-04-04T18:08:42.50 0.6 negative manual P 56 0.3534 50 0.4 44
IV.CESX.HHE. 2020-04-04T18:08:42.73 1.0 undecidable manual P 242 0.3921 50 -0.03 24
IV.MC2.EHZ. 2020-04-04T18:08:41.70 0.6 undecidable manual S 38 0.1538 123 0.08 50
IV.RM33.EHZ. 2020-04-04T18:08:41.10 0.6 negative manual P 158 0.304 50 -0.16 47
IV.CESI.HHZ. 2020-04-04T18:08:40.18 0.1 negative manual P 332 0.2419 50 -0.02 98
IV.T1299.HNZ. 2020-04-04T18:08:40.08 0.6 undecidable manual P 134 0.2266 50 0.14 48
IV.FDMO.HHZ. 2020-04-04T18:08:40.23 0.6 positive manual P 5 0.2464 50 -0.04 49
IV.MTRA.EHZ. 2020-04-04T18:08:40.16 0.6 undecidable manual P 98 0.25 50 -0.17 47
IV.SMA1.EHZ. 2020-04-04T18:08:40.53 0.6 positive manual P 128 0.2581 50 0.05 49
IT.MTCL.HGZ. 2020-04-04T18:08:39.51 0.6 undecidable manual P 348 0.2077 50 -0.1 49
IV.LNSS.HHZ. 2020-04-04T18:08:39.30 0.1 positive manual P 184 0.1889 50 0.02 99
IV.MMO1.EHZ. 2020-04-04T18:08:39.73 0.1 positive manual P 61 0.2239 50 -0.16 96
IV.FEMA.HNZ. 2020-04-04T18:08:39.28 1.0 undecidable manual P 358 0.1709 50 0.29 23
IV.MC2.EHZ. 2020-04-04T18:08:38.76 0.1 positive manual P 38 0.1538 123 0.1 98
IV.NRCA.HNZ. 2020-04-04T18:08:38.80 0.3 undecidable manual S 44 0.0585 149 -0.21 73
IV.NRCA.HNZ. 2020-04-04T18:08:37.27 0.1 undecidable manual P 44 0.0585 149 0.12 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.9 0.0010758045 0.1408 AML other m 2020-04-04T18:08:38.95
IV.NRCA.HHN. ML:1.9 0.0011136595 0.0768 AML other m 2020-04-04T18:08:38.87
IV.NRCA.HNE. ML:1.8 0.00094832305 0.1408 AML other m 2020-04-04T18:08:38.95
IV.NRCA.HNN. ML:1.8 0.0010465485 0.0896 AML other m 2020-04-04T18:08:38.91
IV.LNSS.HHE. ML:1.5 0.0002059779 0.128 AML other m 2020-04-04T18:08:43.10
IV.LNSS.HHN. ML:1.4 0.0001670671 0.192 AML other m 2020-04-04T18:08:43.14
IV.LNSS.HNE. ML:1.5 0.0001983542 0.128 AML other m 2020-04-04T18:08:43.10
IV.LNSS.HNN. ML:1.3 0.000148034135 0.192 AML other m 2020-04-04T18:08:43.24
IV.MTRA.EHE. ML:1.3 9.6705E-5 0.2304 AML other m 2020-04-04T18:08:44.86
IV.MTRA.EHN. ML:1.4 0.0001155054 0.2432 AML other m 2020-04-04T18:08:45.12
IV.MTRA.HNE. ML:1.4 0.000137687715 0.3456 AML other m 2020-04-04T18:08:44.68
IV.MTRA.HNN. ML:1.4 0.00014596505 0.2432 AML other m 2020-04-04T18:08:45.12
IV.CESI.HHE. ML:1 4.8455835E-5 0.1152 AML other m 2020-04-04T18:08:44.83
IV.CESI.HHN. ML:1.2 9.096218E-5 0.1408 AML other m 2020-04-04T18:08:45.65
IV.CESI.HNE. ML:1.3 9.94163805E-5 0.512 AML other m 2020-04-04T18:08:44.44
IV.CESI.HNN. ML:1.4 0.0001470067 1.2416 AML other m 2020-04-04T18:08:45.06
IV.FDMO.HHE. ML:1 5.5801925E-5 0.1792 AML other m 2020-04-04T18:08:45.02
IV.FDMO.HHN. ML:1 5.5095315E-5 0.1792 AML other m 2020-04-04T18:08:45.18
IV.SMA1.EHE. ML:1.3 9.493028E-5 0.4992 AML other m 2020-04-04T18:08:48.43
IV.SMA1.EHN. ML:1.4 0.00011509802 0.1792 AML other m 2020-04-04T18:08:46.18
IV.RM33.HNE. ML:1.5 0.000137291365 0.64 AML other m 2020-04-04T18:08:52.83
IV.RM33.HNN. ML:1.4 0.00011728578 0.8576 AML other m 2020-04-04T18:08:57.41
IV.RM33.EHE. ML:1 4.03908E-5 0.128 AML other m 2020-04-04T18:08:47.13
IV.RM33.EHN. ML:1.1 4.9566335E-5 0.064 AML other m 2020-04-04T18:08:46.61
IV.GUMA.HNE. ML:1.5 0.00012355105 0.2176 AML other m 2020-04-04T18:08:43.93
IV.GUMA.HNN. ML:1.8 0.00021608137 0.2176 AML other m 2020-04-04T18:08:44.77
IV.GUMA.HHE. ML:1.3 6.7850435E-5 0.5376 AML other m 2020-04-04T18:08:51.74
IV.GUMA.HHN. ML:1.3 6.831917E-5 0.256 AML other m 2020-04-04T18:08:50.52
IV.MF5.EHE. ML:1.5 0.00010171138 1.8816 AML other m 2020-04-04T18:08:58.27
IV.MF5.EHN. ML:1.3 7.621457E-5 1.7152 AML other m 2020-04-04T18:09:00.86
IV.TERO.HHE. ML:1 2.536469E-5 0.0768 AML other m 2020-04-04T18:08:50.32
IV.TERO.HHN. ML:1.2 3.858946E-5 0.1024 AML other m 2020-04-04T18:08:50.14
IV.TERO.HNE. ML:1.7 0.0001301702915 0.7808 AML other m 2020-04-04T18:08:54.95
IV.TERO.HNN. ML:1.8 0.000161750325 1.0752 AML other m 2020-04-04T18:09:04.01
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