Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 27-08-2019 and time 14:52:12 (Italy) in region 3 km W Castelsantangelo sul Nera (MC)

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

  • 27-08-2019 12:52:12 (UTC)
  • 27-08-2019 14:52:12 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8850, 13.1260 at 6 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
Castelsantangelo sul Nera MC 3 281 281
Visso MC 6 1107 1388
Ussita MC 7 444 1832
Preci PG 7 724 2556
Norcia PG 11 4957 7513
Bolognola MC 15 142 7655
Monte Cavallo MC 16 145 7800
Sellano PG 16 1079 8879
Montemonaco AP 17 604 9483
Acquacanina MC 17 121 9604
Fiastra MC 17 559 10163
Fiordimonte MC 17 202 10365
Montegallo AP 18 523 10888
Cerreto di Spoleto PG 18 1075 11963
Arquata del Tronto AP 19 1178 13141
Montefortino FM 19 1178 14319
Pieve Torina MC 19 1458 15777

Municipalities with at least 50000 inhabitants

An earthquake occurred to
35 Km E of Foligno (57155 inhabitants)
53 Km NE of Terni (111501 inhabitants)
54 Km W of Teramo (54892 inhabitants)
63 Km NW of L'Aquila (69753 inhabitants)
65 Km E of Perugia (166134 inhabitants)
88 Km SW of Ancona (100861 inhabitants)
93 Km W of Montesilvano (53738 inhabitants)
98 Km NE of Viterbo (67173 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 2019-08-27
12:52:12		 42.8848 13.1258 6 2019-08-27
13:29:44		 Sala Sismica INGV-Roma 71848671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-08-27 12:52:12 ± 0.08
Latitude 42.8848 ± 0.0018
Longitude 13.1258 ± 0.0025
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 71848671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 229
Semi-minor axis of confidence ellipse (meter) 64
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 49
Circular confidence region, given by single value of horizontal uncertainty (meter) 230.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 86
Number of associated phases, regardless of their use for origin computation 18
Number of defining phases 17
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.26530
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.1
Num. used stations 4
Type of magnitude ML
Reference to an origin 71848671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-08-27 13:29:44
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.GAVE.EHZ. 2019-08-27T12:52:22.65 0.6 undecidable manual S 221 28.5492 103 0.28 46
IV.MTRA.EHZ. 2019-08-27T12:52:21.61 0.6 undecidable manual S 123 26.2515 104 0.01 48
IV.CESI.HHE. 2019-08-27T12:52:20.17 0.3 undecidable manual S 307 22.3554 106 -0.13 71
IV.CSP1.EHZ. 2019-08-27T12:52:20.78 0.6 undecidable manual S 16 23.8539 105 -0.01 49
IV.MMO1.EHZ. 2019-08-27T12:52:18.33 0.6 undecidable manual S 84 16.3725 111 -0.02 49
IV.FDMO.HHZ. 2019-08-27T12:52:18.78 0.6 undecidable manual S 349 17.0718 111 0.21 47
IV.GAVE.EHZ. 2019-08-27T12:52:18.02 0.3 undecidable manual P 221 28.5492 103 -0.07 72
IV.MF5.EHZ. 2019-08-27T12:52:18.51 0.3 undecidable manual P 67 29.4483 102 0.25 69
IT.MTCL.HGE. 2019-08-27T12:52:18.28 0.6 undecidable manual S 320 15.873 112 0.11 48
IV.CSP1.EHZ. 2019-08-27T12:52:17.12 0.1 undecidable manual P 16 23.8539 105 -0.05 96
IV.MTRA.EHZ. 2019-08-27T12:52:17.56 0.3 undecidable manual P 123 26.2515 104 -0.08 72
IV.CESI.HHE. 2019-08-27T12:52:16.91 0.3 undecidable manual P 307 22.3554 106 0.02 73
IV.FDMO.HHZ. 2019-08-27T12:52:16.04 0.6 negative manual P 349 17.0718 111 0.15 48
IV.NRCA.HHE. 2019-08-27T12:52:15.17 0.6 undecidable manual S 189 5.7942 138 -0.06 50
IT.MTCL.HGE. 2019-08-27T12:52:15.49 0.1 undecidable manual P 320 15.873 112 -0.17 95
IV.MMO1.EHZ. 2019-08-27T12:52:15.67 0.1 undecidable manual P 84 16.3725 111 -0.09 97
IV.FEMA.HNZ. 2019-08-27T12:52:14.63 3.0 undecidable manual P 0
IV.NRCA.HHE. 2019-08-27T12:52:13.99 0.1 undecidable manual P 189 5.7942 138 0.03 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FDMO.HHE. ML:0.9 0.00007855000000000001 1.38 AML other m 2019-08-27T12:52:19.76
IV.FDMO.HHN. ML:1.0 0.00008730000000000001 1.58 AML other m 2019-08-27T12:52:19.04
IV.GAVE.EHN. ML:1.2 0.00007295 1.62 AML other m 2019-08-27T12:52:24.87
IV.GAVE.EHE. ML:1.2 0.00007769999999999999 0.54 AML other m 2019-08-27T12:52:24.76
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