Earthquake with magnitude of Md 1.4 on date 12-09-2019 and time 04:14:52 (Italy) in region 4 km N Norcia (PG)

A magnitude Md 1.4 earthquake occured in region: 4 km N Norcia (PG), on

  • 12-09-2019 02:14:52 (UTC)
  • 12-09-2019 04:14:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.1 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 4 4957 4957
Preci PG 8 724 5681
Castelsantangelo sul Nera MC 8 281 5962
Visso MC 11 1107 7069
Ussita MC 13 444 7513
Cascia PG 14 3217 10730
Cerreto di Spoleto PG 15 1075 11805
Sellano PG 16 1079 12884
Arquata del Tronto AP 17 1178 14062
Poggiodomo PG 19 117 14179
Montegallo AP 19 523 14702
Accumoli RI 19 667 15369
Monte Cavallo MC 20 145 15514

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
48 Km NE of Terni (111501 inhabitants)
53 Km W of Teramo (54892 inhabitants)
58 Km NW of L'Aquila (69753 inhabitants)
66 Km E of Perugia (166134 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
94 Km E of Viterbo (67173 inhabitants)
94 Km SW of Ancona (100861 inhabitants)
97 Km NE of Guidonia Montecelio (88673 inhabitants)
99 Km N of Tivoli (56533 inhabitants)
100 Km W of Pescara (121014 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 Md 1.4 2019-09-12
02:14:52
42.83 13.1 9 2019-09-12
02:21:16
Sala Sismica INGV-Roma 72328231
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-09-12 02:14:52 ± 0.26
Latitude 42.83 ± 0.01
Longitude 13.10 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 72328231

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1323
Semi-minor axis of confidence ellipse (meter) 870
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 220
Circular confidence region, given by single value of horizontal uncertainty (meter) 1320
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 289
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0.00899
Epicentral distance of station farthest from the epicenter (degree) 0.30577
Number of stations at which the event was observed 5
Number of stations from which data was used for origin computation 5
Magnitude information

Md:1.4

Field Value
Value 1.4
Uncertainty 0.6
Num. used stations 3
Type of magnitude Md
Reference to an origin 72328231
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-09-12 02:21:16
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MF5.EHZ. 2019-09-12T02:15:05.08 0.1 undecidable manual S 59 0.3058 50 0.54 83
IV.CSP1.EHZ. 2019-09-12T02:15:03.32 0.1 undecidable manual S 16 0.2725 107 -0.23 91
IV.FDMO.HHZ. 2019-09-12T02:15:01.25 0.1 undecidable manual S 357 0.2068 112 0.08 95
IV.MMO1.EHZ. 2019-09-12T02:15:00.04 0.1 undecidable manual S 67 0.1781 115 -0.12 95
IV.MF5.EHZ. 2019-09-12T02:14:59.24 0.1 undecidable manual P 59 0.3058 50 -0.26 90
IV.CSP1.EHZ. 2019-09-12T02:14:58.85 0.6 undecidable manual P 16 0.2725 107 -0.07 47
IV.FDMO.HHZ. 2019-09-12T02:14:57.72 0.6 positive manual P 357 0.2068 112 0.17 47
IV.MMO1.EHZ. 2019-09-12T02:14:56.71 0.6 positive manual P 67 0.1781 115 -0.26 46
IV.NRCA.HHZ. 2019-09-12T02:14:55.80 0.1 undecidable manual S 68 0.009 173 0.02 100
IV.NRCA.HHZ. 2019-09-12T02:14:54.65 0.6 undecidable manual P 68 0.009 173 0.21 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHZ. Md:1.4 13 END duration s
IV.MMO1.EHZ. Md:1.5 13 END duration s
IV.FDMO.HHZ. Md:1.5 13 END duration s
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