Earthquake with magnitude of ML 1.1 on date 26-09-2018 and time 20:41:23 (Italy) in region 10 km W Monte Cavallo (MC)

A magnitude ML 1.1 earthquake occured in region: 10 km W Monte Cavallo (MC), on

  • 26-09-2018 18:41:23 (UTC)
  • 26-09-2018 20:41:23 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.98, 12.88 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
Monte Cavallo MC 10 145 145
Sellano PG 10 1079 1224
Serravalle di Chienti MC 12 1070 2294
Valtopina PG 14 1398 3692
Foligno PG 15 57155 60847
Trevi PG 15 8469 69316
Pieve Torina MC 16 1458 70774
Preci PG 17 724 71498
Nocera Umbra PG 17 5839 77337
Spello PG 17 8645 85982
Cerreto di Spoleto PG 18 1075 87057
Visso MC 18 1107 88164
Muccia MC 18 915 89079
Fiordimonte MC 18 202 89281
Campello sul Clitunno PG 19 2442 91723
Pievebovigliana MC 19 866 92589
Sefro MC 20 422 93011

Municipalities with at least 50000 inhabitants

An earthquake occurred to
15 Km E of Foligno (57155 inhabitants)
43 Km E of Perugia (166134 inhabitants)
50 Km NE of Terni (111501 inhabitants)
76 Km W of Teramo (54892 inhabitants)
81 Km NW of L'Aquila (69753 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
89 Km NE of Viterbo (67173 inhabitants)
97 Km S of Fano (60888 inhabitants)
98 Km SE of Arezzo (99543 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 2018-09-26
18:41:23
42.98 12.88 11 2018-09-26
18:49:27
Sala Sismica INGV-Roma 61341741
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2018-09-26 18:41:23 ± 0.06
Latitude 42.98 ± 0.00
Longitude 12.88 ± 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 61341741

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 407
Semi-minor axis of confidence ellipse (meter) 335
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 337
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) 76
Number of associated phases, regardless of their use for origin computation 21
Number of defining phases 19
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.39031
Number of stations at which the event was observed 12
Number of stations from which data was used for origin computation 10
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 8
Type of magnitude ML
Reference to an origin 61341741
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2018-09-26 18:49:27
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MURB.HNZ. 2018-09-26T18:41:38.30 3.0 undecidable manual S 0.11 0
IV.EL6.EHZ. 2018-09-26T18:41:37.96 0.3 undecidable manual S 24 0.3885 50 0.45 65
IV.LNSS.HHZ. 2018-09-26T18:41:37.68 0.1 undecidable manual S 163 0.3903 50 0.12 93
IV.PF6.EHE. 2018-09-26T18:41:34.21 0.3 undecidable manual S 55 0.2806 50 -0.1 72
IV.MOMA.HHE. 2018-09-26T18:41:34.52 0.3 undecidable manual S 233 0.2851 50 0.08 72
IV.NRCA.HHZ. 2018-09-26T18:41:32.40 0.1 undecidable manual S 130 0.2221 50 -0.18 95
IV.EL6.EHZ. 2018-09-26T18:41:31.66 0.6 positive manual P 24 0.3885 50 0.1 47
IV.LNSS.HHZ. 2018-09-26T18:41:31.42 0.3 undecidable manual P 163 0.3903 50 -0.17 69
IV.MML1.HNE. 2018-09-26T18:41:30.31 0.1 undecidable manual S 26 0.1529 122 -0.05 99
IV.MOMA.HHE. 2018-09-26T18:41:30.04 0.3 undecidable manual P 233 0.2851 50 0.25 69
IV.FDMO.HHZ. 2018-09-26T18:41:30.51 0.1 undecidable manual S 68 0.1628 120 -0.17 96
IV.ASSB.HHZ. 2018-09-26T18:41:30.80 0.1 undecidable manual S 293 0.1754 118 -0.32 93
IV.PF6.EHE. 2018-09-26T18:41:29.65 0.3 undecidable manual P 55 0.2806 50 -0.06 72
IV.CSP1.EHZ. 2018-09-26T18:41:29.51 3.0 positive manual P 0.05 0
IV.SNTG.HHN. 2018-09-26T18:41:29.38 0.3 undecidable manual P 9 0.2824 50 -0.37 68
IV.NRCA.HHZ. 2018-09-26T18:41:28.67 0.1 positive manual P 130 0.2221 50 -0.04 98
IV.FDMO.HHZ. 2018-09-26T18:41:27.72 0.6 positive manual P 68 0.1628 120 0.11 49
IV.ASSB.HHZ. 2018-09-26T18:41:27.86 0.6 positive manual P 293 0.1754 118 0 50
IV.CESI.HHZ. 2018-09-26T18:41:27.41 0.1 undecidable manual S 30 0.0342 160 0.1 100
IV.MML1.HNE. 2018-09-26T18:41:27.53 0.1 undecidable manual P 26 0.1529 122 0.1 98
IV.CESI.HHZ. 2018-09-26T18:41:25.97 0.1 undecidable manual P 30 0.0342 160 0.31 96
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.3 0.0003055 0.28 AML other m 2018-09-26T18:41:27.66
IV.CESI.HHE. ML:1.3 0.000372 0.16 AML other m 2018-09-26T18:41:27.59
IV.FDMO.HHN. ML:0.8 5.09E-5 1.06 AML other m 2018-09-26T18:41:30.80
IV.FDMO.HHE. ML:0.7 4.085E-5 0.84 AML other m 2018-09-26T18:41:31.14
IV.ASSB.HHN. ML:0.9 6.56E-5 0.16 AML other m 2018-09-26T18:41:31.31
IV.ASSB.HHE. ML:1 6.85E-5 1.56 AML other m 2018-09-26T18:41:31.07
IV.NRCA.HHN. ML:1.4 0.0001395 0.14 AML other m 2018-09-26T18:41:32.54
IV.NRCA.HHE. ML:1 6.41E-5 1.32 AML other m 2018-09-26T18:41:33.91
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