Earthquake with magnitude of ML 1.4 on date 15-09-2020 and time 07:37:11 (Italy) in region 7 km W Sefro (MC)

A magnitude ML 1.4 earthquake occured in region: 7 km W Sefro (MC), on

  • 15-09-2020 05:37:11 (UTC)
  • 15-09-2020 07:37:11 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 43.14, 12.86 at 20 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
Sefro MC 7 422 422
Nocera Umbra PG 7 5839 6261
Fiuminata MC 8 1402 7663
Pioraco MC 11 1134 8797
Serravalle di Chienti MC 11 1070 9867
Gualdo Tadino PG 12 15208 25075
Valtopina PG 13 1398 26473
Esanatoglia MC 14 2034 28507
Muccia MC 16 915 29422
Camerino MC 17 6974 36396
Matelica MC 17 9981 46377
Castelraimondo MC 17 4587 50964
Pieve Torina MC 19 1458 52422
Fossato di Vico PG 19 2840 55262
Gagliole MC 20 620 55882
Monte Cavallo MC 20 145 56027

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km NE of Foligno (57155 inhabitants)
39 Km E of Perugia (166134 inhabitants)
67 Km N of Terni (111501 inhabitants)
75 Km SW of Ancona (100861 inhabitants)
79 Km S of Fano (60888 inhabitants)
85 Km S of Pesaro (94582 inhabitants)
87 Km NW of Teramo (54892 inhabitants)
87 Km E of Arezzo (99543 inhabitants)
98 Km NW of L'Aquila (69753 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
Reviewed
Rev100
ML 1.4 2020-09-15
05:37:11
43.14 12.87 20 2020-09-15
05:40:00
Sala Sismica INGV-Roma 82918431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-15 05:37:11 ± 0.1
Latitude 43.14 ± 0.00
Longitude 12.87 ± 0.00
Depth (km) 20 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82918431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 379
Semi-minor axis of confidence ellipse (meter) 70
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 58
Circular confidence region, given by single value of horizontal uncertainty (meter) 380
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 107
Number of associated phases, regardless of their use for origin computation 15
Number of defining phases 15
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.12
Epicentral distance of station closest to the epicenter (degree) 0.14119
Epicentral distance of station farthest from the epicenter (degree) 0.45146
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 14
Type of magnitude ML
Reference to an origin 82918431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-15 05:40:00
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2020-09-15T05:37:27.76 0.6 undecidable manual S 177 0.4515 103 0.24 45
IV.MC2.EHZ. 2020-09-15T05:37:24.44 0.6 undecidable manual S 134 0.331 110 0.34 45
IV.EL6.EHZ. 2020-09-15T05:37:22.03 0.6 undecidable manual S 43 0.2536 117 0.06 49
IV.ATCC.EHZ. 2020-09-15T05:37:20.03 0.6 undecidable manual S 284 0.1691 130 0.14 49
IV.ASSB.HHZ. 2020-09-15T05:37:20.11 0.6 undecidable manual S 236 0.1817 128 -0.05 49
IV.GAVE.EHZ. 2020-09-15T05:37:20.55 0.1 undecidable manual P 177 0.4515 103 -0.16 92
IV.FDMO.HHZ. 2020-09-15T05:37:20.29 0.6 undecidable manual S 123 0.1943 125 -0.18 48
IV.CESI.HHZ. 2020-09-15T05:37:19.13 0.6 undecidable manual S 168 0.1412 136 -0.15 49
IV.MC2.EHZ. 2020-09-15T05:37:18.82 1.0 negative manual P 134 0.331 110 0.09 24
IV.EL6.EHZ. 2020-09-15T05:37:17.45 0.6 positive manual P 43 0.2536 117 -0.05 49
IV.MURB.HHZ. 2020-09-15T05:37:17.94 0.3 positive manual P 296 0.2752 114 0.09 72
IV.FDMO.HHZ. 2020-09-15T05:37:16.49 1.0 undecidable manual P 123 0.1943 125 -0.15 24
IV.ATCC.EHZ. 2020-09-15T05:37:16.33 0.1 negative manual P 284 0.1691 130 0.03 100
IV.ASSB.HHZ. 2020-09-15T05:37:16.40 0.3 positive manual P 236 0.1817 128 -0.06 74
IV.CESI.HHZ. 2020-09-15T05:37:15.88 0.1 positive manual P 168 0.1412 136 -0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHN. ML:1.2 9.29E-5 0.94 AML other m 2020-09-15T05:37:19.35
IV.CESI.HHE. ML:1.5 0.0002095 0.08 AML other m 2020-09-15T05:37:19.53
IV.ASSB.HHN. ML:1.9 0.000412 0.24 AML other m 2020-09-15T05:37:20.40
IV.ASSB.HHE. ML:1.6 0.0002085 0.36 AML other m 2020-09-15T05:37:20.41
IV.FDMO.HHN. ML:1.4 0.0001295 0.88 AML other m 2020-09-15T05:37:20.48
IV.FDMO.HHE. ML:1.7 0.0002685 0.16 AML other m 2020-09-15T05:37:20.50
IV.ATCC.EHN. ML:1.5 0.000172 0.28 AML other m 2020-09-15T05:37:20.37
IV.ATCC.EHE. ML:1.4 0.000137 0.18 AML other m 2020-09-15T05:37:20.62
IV.EL6.EHE. ML:1.3 8.395E-5 0.4 AML other m 2020-09-15T05:37:22.95
IV.EL6.EHN. ML:1.3 8.735E-5 0.2 AML other m 2020-09-15T05:37:23.16
IV.MURB.HHE. ML:1.4 9.955E-5 1.74 AML other m 2020-09-15T05:37:24.08
IV.MURB.HHN. ML:1.3 7.545E-5 1 AML other m 2020-09-15T05:37:25.77
IV.GAVE.EHE. ML:1.4 5.7E-5 1.54 AML other m 2020-09-15T05:37:28.19
IV.GAVE.EHN. ML:1.4 5.71E-5 0.16 AML other m 2020-09-15T05:37:29.37
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