INGVCENTRO​NAZIONALE​TERREMOTI
Sala Sismica

Earthquake with magnitude of ML 1.0 on date 12-09-2018 and time 15:35:58 (Italy) in region 6 km W Montegallo (AP)

A magnitude ML 1.0 earthquake occured in region: 6 km W Montegallo (AP), on

  • 12-09-2018 13:35:58 (UTC)
  • 12-09-2018 15:35:58 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.83, 13.27 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
Montegallo AP 6 523 523
Arquata del Tronto AP 6 1178 1701
Montemonaco AP 10 604 2305
Castelsantangelo sul Nera MC 12 281 2586
Acquasanta Terme AP 13 2916 5502
Montefortino FM 15 1178 6680
Accumoli RI 15 667 7347
Norcia PG 15 4957 12304
Ussita MC 17 444 12748
Roccafluvione AP 18 2010 14758
Palmiano AP 18 196 14954
Visso MC 19 1107 16061
Amandola FM 19 3629 19690
Comunanza AP 19 3166 22856
Bolognola MC 19 142 22998
Preci PG 20 724 23722
Venarotta AP 20 2066 25788

Municipalities with at least 50000 inhabitants

An earthquake occurred to
40 Km W of Teramo (54892 inhabitants)
48 Km E of Foligno (57155 inhabitants)
54 Km N of L'Aquila (69753 inhabitants)
59 Km NE of Terni (111501 inhabitants)
78 Km E of Perugia (166134 inhabitants)
80 Km W of Montesilvano (53738 inhabitants)
87 Km W of Pescara (121014 inhabitants)
90 Km S of Ancona (100861 inhabitants)
91 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 1.0 2018-09-12
13:35:58
42.83 13.27 11 2018-09-12
14:01:58
Sala Sismica INGV-Roma 60866241
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-12 13:35:58 ± 0.03
Latitude 42.83 ± 0.00
Longitude 13.27 ± 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 60866241

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 338
Semi-minor axis of confidence ellipse (meter) 137
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 53
Circular confidence region, given by single value of horizontal uncertainty (meter) 340
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 95
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 20
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.11
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.32016
Number of stations at which the event was observed 11
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 60866241
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-12 14:01:58
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2018-09-12T13:36:10.28 0.6 undecidable manual S 129 0.3202 50 0.32 45
IV.RM33.EHZ. 2018-09-12T13:36:10.12 0.6 undecidable manual S 187 0.3184 50 0.19 47
IV.CESI.HHZ. 2018-09-12T13:36:10.04 0.6 undecidable manual S 304 0.3202 50 0.07 48
IV.CSP1.EHZ. 2018-09-12T13:36:08.61 0.6 undecidable manual S 350 0.2698 50 0.13 48
IV.VCEL.EHZ. 2018-09-12T13:36:07.84 3.0 positive manual P -2.21 0
IV.FDMO.HHZ. 2018-09-12T13:36:07.79 0.6 undecidable manual S 328 0.2482 50 -0.06 49
IV.SMA1.EHZ. 2018-09-12T13:36:06.30 0.6 undecidable manual S 166 0.2014 50 -0.15 48
IV.TERO.HHZ. 2018-09-12T13:36:04.84 0.3 negative manual P 129 0.3202 50 -0.07 72
IV.RM33.EHZ. 2018-09-12T13:36:04.87 1.0 undecidable manual P 187 0.3184 50 -0.02 24
IV.CESI.HHZ. 2018-09-12T13:36:04.83 0.1 undecidable manual P 304 0.3202 50 -0.09 95
IV.MTRA.EHZ. 2018-09-12T13:36:03.76 0.6 undecidable manual S 126 0.1169 130 -0.17 49
IV.CSP1.EHZ. 2018-09-12T13:36:03.98 0.3 positive manual P 350 0.2698 50 -0.08 72
IV.MC2.EHZ. 2018-09-12T13:36:03.71 0.6 undecidable manual S 326 0.1034 134 0.19 49
IV.NRCA.HHZ. 2018-09-12T13:36:03.64 0.6 undecidable manual S 274 0.1124 131 -0.14 49
IV.FDMO.HHZ. 2018-09-12T13:36:03.54 0.3 positive manual P 328 0.2482 50 -0.15 71
IV.MMO1.EHZ. 2018-09-12T13:36:02.96 0.6 undecidable manual S 31 0.0854 139 -0.1 50
IV.SMA1.EHZ. 2018-09-12T13:36:02.81 0.6 positive manual P 166 0.2014 50 -0.08 49
IV.NRCA.HHZ. 2018-09-12T13:36:01.41 0.1 negative manual P 274 0.1124 131 0.07 99
IV.MTRA.EHZ. 2018-09-12T13:36:01.46 0.1 positive manual P 126 0.1169 130 0.03 100
IV.MMO1.EHZ. 2018-09-12T13:36:01.03 1.0 undecidable manual P 31 0.0854 139 0.1 25
IV.MC2.EHZ. 2018-09-12T13:36:01.40 0.6 positive manual P 326 0.1034 134 0.21 48
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:1.6 0.000425 0.46 AML other m 2018-09-12T13:36:03.69
IV.NRCA.HHN. ML:1.9 0.000812 0.14 AML other m 2018-09-12T13:36:03.79
IV.MTRA.EHE. ML:1.1 0.000132 1.56 AML other m 2018-09-12T13:36:04.86
IV.MTRA.EHN. ML:1 9.31E-5 0.14 AML other m 2018-09-12T13:36:04.25
IV.FDMO.HHN. ML:0.8 3.125E-5 1.66 AML other m 2018-09-12T13:36:08.02
IV.FDMO.HHE. ML:0.7 2.545E-5 1.34 AML other m 2018-09-12T13:36:08.03
IV.CESI.HHN. ML:1.2 6.53E-5 0.14 AML other m 2018-09-12T13:36:10.38
IV.CESI.HHE. ML:1 3.675E-5 0.4 AML other m 2018-09-12T13:36:10.46
IV.TERO.HHE. ML:1.1 4.385E-5 0.16 AML other m 2018-09-12T13:36:10.40
IV.RM33.EHE. ML:1.1 4.6E-5 0.14 AML other m 2018-09-12T13:36:10.80
IV.TERO.HHN. ML:0.9 3.14E-5 0.74 AML other m 2018-09-12T13:36:10.48
IV.RM33.EHN. ML:1 3.9E-5 0.1 AML other m 2018-09-12T13:36:10.90
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