Earthquake with magnitude of ML 1.1 on date 15-09-2020 and time 00:23:40 (Italy) in region 3 km S Castelsantangelo sul Nera (MC)

A magnitude ML 1.1 earthquake occured in region: 3 km S Castelsantangelo sul Nera (MC), on

  • 14-09-2020 22:23:40 (UTC)
  • 15-09-2020 00:23:40 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.86, 13.15 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
Castelsantangelo sul Nera MC 3 281 281
Visso MC 9 1107 1388
Ussita MC 9 444 1832
Preci PG 9 724 2556
Norcia PG 9 4957 7513
Montemonaco AP 15 604 8117
Montegallo AP 15 523 8640
Arquata del Tronto AP 16 1178 9818
Bolognola MC 16 142 9960
Montefortino FM 18 1178 11138
Sellano PG 18 1079 12217
Acquacanina MC 19 121 12338
Monte Cavallo MC 19 145 12483
Fiastra MC 19 559 13042
Cerreto di Spoleto PG 20 1075 14117
Cascia PG 20 3217 17334
Fiordimonte MC 20 202 17536

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km E of Foligno (57155 inhabitants)
51 Km W of Teramo (54892 inhabitants)
53 Km NE of Terni (111501 inhabitants)
61 Km NW of L'Aquila (69753 inhabitants)
68 Km E of Perugia (166134 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
91 Km W of Montesilvano (53738 inhabitants)
98 Km W of Pescara (121014 inhabitants)
99 Km NE of Viterbo (67173 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 1.1 2020-09-14
22:23:40
42.86 13.15 10 2020-09-14
22:35:47
Sala Sismica INGV-Roma 82911171
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-09-14 22:23:40 ± 0.09
Latitude 42.86 ± 0.01
Longitude 13.15 ± 0.01
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 82911171

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 547
Semi-minor axis of confidence ellipse (meter) 528
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 348
Circular confidence region, given by single value of horizontal uncertainty (meter) 550
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 117
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) 0.2
Epicentral distance of station closest to the epicenter (degree) 0.04047
Epicentral distance of station farthest from the epicenter (degree) 0.41099
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:1.1

Field Value
Value 1.1
Uncertainty 0.4
Num. used stations 20
Type of magnitude ML
Reference to an origin 82911171
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-09-14 22:35:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-09-14T22:23:54.88 0.6 undecidable manual S 126 0.411 50 -0.04 48
IV.MF5.EHZ. 2020-09-14T22:23:50.79 0.6 undecidable manual S 61 0.2581 50 0.42 46
IV.TERO.HHZ. 2020-09-14T22:23:48.63 0.3 undecidable manual P 126 0.411 50 0.01 72
IV.MTRA.EHZ. 2020-09-14T22:23:48.64 0.6 undecidable manual S 121 0.2104 113 -0.18 48
IV.FDMO.HHZ. 2020-09-14T22:23:47.17 0.6 undecidable manual S 345 0.1781 117 -0.52 45
IV.MF5.EHZ. 2020-09-14T22:23:46.07 1.0 negative manual P 61 0.2581 50 0.07 25
IV.MMO1.EHZ. 2020-09-14T22:23:45.95 0.6 undecidable manual S 75 0.134 124 -0.27 48
IV.GAVE.EHZ. 2020-09-14T22:23:45.88 0.1 undecidable manual P 228 0.2545 50 -0.07 98
IV.MTRA.EHZ. 2020-09-14T22:23:44.97 0.1 undecidable manual P 121 0.2104 113 -0.14 98
IV.FDMO.HHZ. 2020-09-14T22:23:44.23 1.0 positive manual P 345 0.1781 117 -0.22 24
IV.MC2.EHZ. 2020-09-14T22:23:44.48 0.6 undecidable manual S 31 0.0549 149 0.41 47
IV.MMO1.EHZ. 2020-09-14T22:23:43.51 1.0 undecidable manual P 75 0.134 124 -0.09 25
IV.NRCA.HHZ. 2020-09-14T22:23:43.87 0.6 undecidable manual S 220 0.0405 155 0.06 51
IV.NRCA.HHZ. 2020-09-14T22:23:42.39 0.1 undecidable manual P 220 0.0405 155 0.18 100
IV.MC2.EHZ. 2020-09-14T22:23:42.64 0.6 undecidable manual P 31 0.0549 149 0.29 49
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HNE. ML:1.5 0.0006023034 0.064 AML other m 2020-09-14T22:23:44.09
IV.NRCA.HHE. ML:1.6 0.00068517515 0.0512 AML other m 2020-09-14T22:23:44.09
IV.NRCA.HHN. ML:1.7 0.00088610515 0.1408 AML other m 2020-09-14T22:23:44.02
IV.NRCA.HNN. ML:1.7 0.000844373 0.128 AML other m 2020-09-14T22:23:43.96
IV.FDMO.HHN. ML:0.9 5.2785545E-5 0.2304 AML other m 2020-09-14T22:23:47.64
IV.FDMO.HHE. ML:0.8 4.796773E-5 0.256 AML other m 2020-09-14T22:23:47.51
IV.MTRA.EHN. ML:0.7 3.386888E-5 0.1664 AML other m 2020-09-14T22:23:49.91
IV.MTRA.EHE. ML:0.7 3.603159E-5 0.1664 AML other m 2020-09-14T22:23:50.71
IV.MTRA.HNN. ML:1.6 0.00027497459 1.024 AML other m 2020-09-14T22:23:46.44
IV.MTRA.HNE. ML:1.2 9.5877415E-5 0.896 AML other m 2020-09-14T22:23:56.12
IV.GAVE.EHN. ML:0.7 2.63269335E-5 0.192 AML other m 2020-09-14T22:23:51.47
IV.GAVE.EHE. ML:0.8 3.6417565E-5 0.256 AML other m 2020-09-14T22:23:51.79
IV.GAVE.HNE. ML:1.3 9.8935325E-5 0.7424 AML other m 2020-09-14T22:23:55.01
IV.GAVE.HNN. ML:1.6 0.00020747165 1.2928 AML other m 2020-09-14T22:24:03.20
IV.MF5.EHE. ML:0.8 3.249551E-5 1.0112 AML other m 2020-09-14T22:23:56.82
IV.MF5.EHN. ML:0.7 2.408491E-5 0.8448 AML other m 2020-09-14T22:23:59.09
IV.TERO.HHN. ML:0.7 1.4897294E-5 0.0768 AML other m 2020-09-14T22:23:55.87
IV.TERO.HNE. ML:1.5 0.00010092884 0.832 AML other m 2020-09-14T22:24:05.35
IV.TERO.HNN. ML:1.7 0.0001346902 0.8704 AML other m 2020-09-14T22:23:54.58
IV.TERO.HHE. ML:0.5 1.04228985E-5 0.0768 AML other m 2020-09-14T22:23:56.01
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