Earthquake with magnitude of ML 1.1 on date 01-09-2019 and time 04:28:30 (Italy) in region 5 km E Norcia (PG)

A magnitude ML 1.1 earthquake occured in region: 5 km E Norcia (PG), on

  • 01-09-2019 02:28:30 (UTC)
  • 01-09-2019 04:28:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.81, 13.15 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
Castelsantangelo sul Nera MC 10 281 5238
Preci PG 12 724 5962
Arquata del Tronto AP 13 1178 7140
Visso MC 14 1107 8247
Ussita MC 15 444 8691
Accumoli RI 15 667 9358
Cascia PG 15 3217 12575
Montegallo AP 15 523 13098
Montemonaco AP 18 604 13702
Cerreto di Spoleto PG 19 1075 14777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km E of Foligno (57155 inhabitants)
48 Km W of Teramo (54892 inhabitants)
50 Km NE of Terni (111501 inhabitants)
55 Km NW of L'Aquila (69753 inhabitants)
70 Km E of Perugia (166134 inhabitants)
88 Km W of Montesilvano (53738 inhabitants)
95 Km SW of Ancona (100861 inhabitants)
95 Km W of Pescara (121014 inhabitants)
96 Km E of Viterbo (67173 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
98 Km NW of Chieti (51815 inhabitants)
98 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 1.1 2019-09-01
02:28:30
42.81 13.15 11 2019-09-01
02:32:15
Sala Sismica INGV-Roma 71995141
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-01 02:28:30 ± 0.06
Latitude 42.81 ± 0.00
Longitude 13.15 ± 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 71995141

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 408
Semi-minor axis of confidence ellipse (meter) 263
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 289
Circular confidence region, given by single value of horizontal uncertainty (meter) 410
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 24
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.14
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 14
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 16
Type of magnitude ML
Reference to an origin 71995141
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-01 02:32:15
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ARRO.EHZ. 2019-09-01T02:28:44.03 0.6 undecidable manual S 231 0.3651 50 -0.08 64
IV.RM33.EHZ. 2019-09-01T02:28:42.25 0.6 undecidable manual S 171 0.3049 50 -0.06 65
IV.CSP1.EHZ. 2019-09-01T02:28:41.81 0.6 undecidable manual S 8 0.2842 50 0.11 65
IV.MNTT.EHZ. 2019-09-01T02:28:40.34 3.0 negative manual P 0.6 0
IV.OFFI.HHZ. 2019-09-01T02:28:40.28 3.0 negative manual P 0.5 0
IV.FDMO.HHZ. 2019-09-01T02:28:39.89 0.6 undecidable manual S 348 0.2311 50 -0.23 64
IV.LNSS.HHZ. 2019-09-01T02:28:39.92 0.3 undecidable manual S 202 0.223 50 0.04 100
IV.SMA1.EHZ. 2019-09-01T02:28:39.93 0.6 undecidable manual S 143 0.2248 50 -0.01 67
IV.GAVE.EHZ. 2019-09-01T02:28:39.73 0.6 undecidable manual S 238 0.2221 50 -0.15 65
IV.TERO.HHZ. 2019-09-01T02:28:39.13 3.0 undecidable manual P -0.13 0
IV.ARRO.EHZ. 2019-09-01T02:28:38.49 1.0 negative manual P 231 0.3651 50 0 33
IV.MTRA.EHZ. 2019-09-01T02:28:38.54 0.6 undecidable manual S 106 0.188 50 -0.31 63
IV.MF5.EHZ. 2019-09-01T02:28:37.46 3.0 undecidable manual P 0.02 0
IV.CSP1.EHZ. 2019-09-01T02:28:37.13 0.6 positive manual P 8 0.2842 50 0.03 66
IV.RM33.EHZ. 2019-09-01T02:28:37.43 1.0 undecidable manual P 171 0.3049 50 -0.02 33
IV.SMA1.EHZ. 2019-09-01T02:28:36.30 1.0 negative manual P 143 0.2248 50 0.22 32
IV.GAVE.EHZ. 2019-09-01T02:28:36.65 1.0 positive manual P 238 0.2221 50 0.61 29
IV.FDMO.HHZ. 2019-09-01T02:28:36.17 0.6 positive manual P 348 0.2311 50 -0.02 67
IV.MC2.EHZ. 2019-09-01T02:28:36.54 0.6 undecidable manual S 15 0.1052 133 0.17 66
IV.LNSS.HHZ. 2019-09-01T02:28:36.23 0.3 negative manual P 202 0.223 50 0.18 97
IV.MTRA.EHZ. 2019-09-01T02:28:35.50 1.0 positive manual P 106 0.188 50 0.05 33
IV.MC2.EHZ. 2019-09-01T02:28:34.23 0.6 positive manual P 15 0.1052 133 0.21 66
IV.NRCA.HNZ. 2019-09-01T02:28:34.45 0.6 undecidable manual S 311 0.036 160 -0.42 64
IV.NRCA.HNZ. 2019-09-01T02:28:33.17 0.6 undecidable manual P 311 0.036 160 0.01 69
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNN. ML:1.7 0.000827 0.6 AML other m 2019-09-01T02:28:34.55
IV.NRCA.HHN. ML:1.8 0.0009775 0.62 AML other m 2019-09-01T02:28:34.56
IV.NRCA.HHE. ML:1.7 0.000858 0.06 AML other m 2019-09-01T02:28:34.70
IV.NRCA.HNE. ML:1.7 0.0007925 0.06 AML other m 2019-09-01T02:28:34.71
IV.MTRA.EHN. ML:0.8 4.395E-5 0.2 AML other m 2019-09-01T02:28:39.82
IV.MTRA.EHE. ML:0.9 4.95E-5 0.18 AML other m 2019-09-01T02:28:40.01
IV.FDMO.HHN. ML:0.7 2.775E-5 1.12 AML other m 2019-09-01T02:28:40.76
IV.LNSS.HHE. ML:1.4 0.000155 0.88 AML other m 2019-09-01T02:28:40.28
IV.LNSS.HHN. ML:1.3 0.0001185 0.6 AML other m 2019-09-01T02:28:40.03
IV.GAVE.EHN. ML:1.2 9.21E-5 0.3 AML other m 2019-09-01T02:28:40.55
IV.GAVE.EHE. ML:1.2 8.675E-5 1.42 AML other m 2019-09-01T02:28:40.02
IV.FDMO.HHE. ML:0.6 2.425E-5 0.64 AML other m 2019-09-01T02:28:41.41
IV.SMA1.EHE. ML:0.7 2.995E-5 0.28 AML other m 2019-09-01T02:28:43.25
IV.SMA1.EHN. ML:0.6 2.45E-5 1.18 AML other m 2019-09-01T02:28:43.12
IV.RM33.EHN. ML:0.9 3.595E-5 0.5 AML other m 2019-09-01T02:28:43.42
IV.RM33.EHE. ML:0.8 2.435E-5 0.68 AML other m 2019-09-01T02:28:43.32
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