Earthquake with magnitude of ML 0.9 on date 18-10-2016 and time 09:33:48 (Italy) in region 7 km W Montemonaco (AP)

A magnitude ML 0.9 earthquake occured in region: 7 km W Montemonaco (AP), on

  • 18-10-2016 07:33:48 (UTC)
  • 18-10-2016 09:33:48 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.8690, 13.2480 at 7 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
Montemonaco AP 7 604 604
Montegallo AP 8 523 1127
Castelsantangelo sul Nera MC 8 281 1408
Montefortino FM 11 1178 2586
Arquata del Tronto AP 11 1178 3764
Ussita MC 12 444 4208
Bolognola MC 14 142 4350
Visso MC 15 1107 5457
Norcia PG 15 4957 10414
Amandola FM 15 3629 14043
Comunanza AP 17 3166 17209
Preci PG 17 724 17933
Acquasanta Terme AP 17 2916 20849
Palmiano AP 18 196 21045
Roccafluvione AP 19 2010 23055
Acquacanina MC 19 121 23176
Sarnano MC 19 3264 26440
Accumoli RI 19 667 27107
Fiastra MC 20 559 27666

Municipalities with at least 50000 inhabitants

An earthquake occurred to
44 Km NW of Teramo (54892 inhabitants)
45 Km E of Foligno (57155 inhabitants)
59 Km N of L'Aquila (69753 inhabitants)
60 Km NE of Terni (111501 inhabitants)
75 Km E of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
86 Km S of Ancona (100861 inhabitants)
91 Km NW of Pescara (121014 inhabitants)
95 Km NW of Chieti (51815 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 0.9 2016-10-18
07:33:48
42.8692 13.248 7 2016-10-18
07:40:12
Sala Sismica INGV-Roma 30325671
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-18 07:33:48 ± 0.21
Latitude 42.8692 ± 0.0045
Longitude 13.2480 ± 0.0049
Depth (km) 7 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30325671

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 422
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 211
Circular confidence region, given by single value of horizontal uncertainty (meter) 420.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 108
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
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) 0.04587
Epicentral distance of station farthest from the epicenter (degree) 0.22663
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.1
Num. used stations 1
Type of magnitude ML
Reference to an origin 30325671
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-18 07:40:12
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.T1243.HHZ. 2016-10-18T07:33:57.12 0.1 undecidable manual S 140 25.1526 105 -0.25 92
IV.T1202.EHZ. 2016-10-18T07:33:55.60 0.1 undecidable manual S 186 18.4704 110 0.45 89
IV.T1243.HHZ. 2016-10-18T07:33:53.46 0.1 undecidable manual P 140 25.1526 105 -0.09 95
IV.T1202.EHZ. 2016-10-18T07:33:52.34 0.1 undecidable manual P 186 18.4704 110 0.07 97
IV.NRCA.HHZ. 2016-10-18T07:33:52.71 0.1 undecidable manual S 250 11.5773 120 -0.25 94
IV.T1245.HHZ. 2016-10-18T07:33:51.11 0.1 undecidable manual S 254 5.0949 142 -0.12 98
IV.MC2.EHZ. 2016-10-18T07:33:51.76 0.1 undecidable manual S 314 6.6933 135 0.15 97
IV.MMO1.EHZ. 2016-10-18T07:33:51.73 0.1 undecidable manual S 62 7.1928 132 -0.01 100
IV.NRCA.HHZ. 2016-10-18T07:33:50.92 0.1 positive manual P 250 11.5773 120 -0.09 97
IV.MMO1.EHZ. 2016-10-18T07:33:50.35 0.1 undecidable manual P 62 7.1928 132 0.05 99
IV.T1245.HHZ. 2016-10-18T07:33:50.02 0.1 positive manual P 254 5.0949 142 0.01 100
IV.MC2.EHZ. 2016-10-18T07:33:50.31 0.1 undecidable manual P 314 6.6933 135 0.09 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.NRCA.HHE. ML:0.8 0.00009475 1.32 AML other m 2016-10-18T07:34:47.75
IV.NRCA.HHN. ML:1.0 0.0001492 1.3 AML other m 2016-10-18T07:34:47.77
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