Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 18-10-2019 and time 23:09:55 (Italy) in region 5 km S Monte Cavallo (MC)

A magnitude ML 1.1 earthquake occured in region: 5 km S Monte Cavallo (MC), on

  • 18-10-2019 21:09:55 (UTC)
  • 18-10-2019 23:09:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.9460, 12.9970 at 12 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.

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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 5 145 145
Visso MC 8 1107 1252
Preci PG 8 724 1976
Sellano PG 9 1079 3055
Ussita MC 12 444 3499
Pieve Torina MC 12 1458 4957
Fiordimonte MC 13 202 5159
Castelsantangelo sul Nera MC 14 281 5440
Serravalle di Chienti MC 15 1070 6510
Pievebovigliana MC 15 866 7376
Cerreto di Spoleto PG 16 1075 8451
Muccia MC 16 915 9366
Fiastra MC 16 559 9925
Acquacanina MC 17 121 10046
Norcia PG 19 4957 15003
Bolognola MC 20 142 15145

Municipalities with at least 50000 inhabitants

An earthquake occurred to
24 Km E of Foligno (57155 inhabitants)
51 Km NE of Terni (111501 inhabitants)
53 Km E of Perugia (166134 inhabitants)
66 Km W of Teramo (54892 inhabitants)
74 Km NW of L'Aquila (69753 inhabitants)
86 Km SW of Ancona (100861 inhabitants)
94 Km NE of Viterbo (67173 inhabitants)
100 Km S of Fano (60888 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Reviewed
Rev100 		ML 1.1 2019-10-18
21:09:55		 42.9465 12.9973 12 2019-10-18
21:14:05		 Sala Sismica INGV-Roma 73331071
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-10-18 21:09:55 ± 0.08
Latitude 42.9465 ± 0.0045
Longitude 12.9973 ± 0.0049
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 73331071

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 501
Semi-minor axis of confidence ellipse (meter) 285
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 31
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 148
Number of associated phases, regardless of their use for origin computation 26
Number of defining phases 26
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.04137
Epicentral distance of station farthest from the epicenter (degree) 0.35343
Number of stations at which the event was observed 13
Number of stations from which data was used for origin computation 13
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 73331071
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-10-18 21:14:05
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ATCC.EHZ. 2019-10-18T21:10:09.00 0.6 undecidable manual S 313 39.2274 93 0.58 41
IV.MF5.EHZ. 2019-10-18T21:10:08.62 0.6 undecidable manual S 83 37.8288 93 0.58 41
IV.SNTG.HHZ. 2019-10-18T21:10:06.48 0.6 undecidable manual S 352 34.5432 93 -0.69 40
IV.MMO1.EHZ. 2019-10-18T21:10:05.15 0.6 undecidable manual S 101 27.2505 95 -0.08 47
IV.ASSB.HHZ. 2019-10-18T21:10:05.73 0.6 undecidable manual S 291 29.4483 94 -0.09 47
IV.CSP1.EHZ. 2019-10-18T21:10:04.13 0.6 undecidable manual S 46 23.2545 96 -0.05 48
IV.MF5.EHZ. 2019-10-18T21:10:03.20 0.3 undecidable manual P 83 37.8288 93 0.47 65
IV.SNTG.HHZ. 2019-10-18T21:10:02.40 0.3 undecidable manual P 352 34.5432 93 0.17 69
IV.ATCC.EHZ. 2019-10-18T21:10:02.94 0.1 undecidable manual P 313 39.2274 93 -0.02 94
IV.MML1.EHN. 2019-10-18T21:10:02.79 0.6 undecidable manual S 354 18.6702 101 -0.16 48
IV.MC2.EHZ. 2019-10-18T21:10:02.68 0.6 undecidable manual S 104 16.0728 106 0.41 45
IV.FDMO.HHZ. 2019-10-18T21:10:01.17 0.3 undecidable manual S 36 12.3765 118 -0.19 72
IV.NRCA.HHZ. 2019-10-18T21:10:01.84 0.3 undecidable manual S 143 15.7731 107 -0.35 68
IV.ASSB.HHZ. 2019-10-18T21:10:01.33 0.1 positive manual P 291 29.4483 94 -0.12 93
IV.CESI.HHZ. 2019-10-18T21:10:00.83 0.3 undecidable manual S 311 9.879 128 0.01 74
IV.CSP1.EHZ. 2019-10-18T21:10:00.44 0.1 undecidable manual P 46 23.2545 96 -0.07 96
IV.MMO1.EHZ. 2019-10-18T21:10:00.96 0.1 undecidable manual P 101 27.2505 95 -0.15 93
IV.FEMA.HNE. 2019-10-18T21:09:59.95 0.6 undecidable manual S 68 4.5954 154 0.04 49
IV.MC2.EHZ. 2019-10-18T21:09:59.44 0.1 undecidable manual P 104 16.0728 106 0.03 98
IT.MTCL.HGE. 2019-10-18T21:09:59.68 0.6 undecidable manual S 2 5.2947 150 -0.32 47
IV.MML1.EHN. 2019-10-18T21:09:59.79 0.1 undecidable manual P 354 18.6702 101 0 98
IV.NRCA.HHZ. 2019-10-18T21:09:59.26 0.1 undecidable manual P 143 15.7731 107 -0.1 96
IT.MTCL.HGE. 2019-10-18T21:09:58.07 0.1 undecidable manual P 2 5.2947 150 -0.02 100
IV.FEMA.HNE. 2019-10-18T21:09:58.18 0.1 undecidable manual P 68 4.5954 154 0.14 98
IV.CESI.HHZ. 2019-10-18T21:09:58.67 0.1 undecidable manual P 311 9.879 128 0.11 97
IV.FDMO.HHZ. 2019-10-18T21:09:58.87 0.1 undecidable manual P 36 12.3765 118 -0.01 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.3 0.00022250000000000001 1.8 AML other m 2019-10-18T21:10:01.05
IV.CESI.HHN. ML:1.5 0.000328 1.68 AML other m 2019-10-18T21:10:01.06
IV.FDMO.HHE. ML:1.1 0.000133 0.14 AML other m 2019-10-18T21:10:01.34
IV.FDMO.HHN. ML:1.2 0.00014450000000000002 0.14 AML other m 2019-10-18T21:10:01.64
IV.NRCA.HHN. ML:1.1 0.00010175 1.04 AML other m 2019-10-18T21:10:01.95
IV.NRCA.HHE. ML:1.1 0.00009784999999999999 0.08 AML other m 2019-10-18T21:10:02.20
IV.SNTG.HHE. ML:0.4 0.000010065000000000001 0.8 AML other m 2019-10-18T21:10:07.47
IV.SNTG.HHN. ML:0.6 0.000013999999999999998 0.48 AML other m 2019-10-18T21:10:07.95
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download