Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 31-12-2016 and time 15:43:23 (UTC) in region 6 km W Montefortino (FM)

A magnitude ML 1.6 earthquake occured in region: 6 km W Montefortino (FM), on

  • 31-12-2016 15:43:23 (UTC)
  • 31-12-2016 16:43:23 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9360, 13.2650 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.

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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
Montefortino FM 6 1178 1178
Montemonaco AP 7 604 1782
Bolognola MC 7 142 1924
Amandola FM 9 3629 5553
Castelsantangelo sul Nera MC 10 281 5834
Ussita MC 10 444 6278
Sarnano MC 12 3264 9542
Montegallo AP 12 523 10065
Comunanza AP 12 3166 13231
Acquacanina MC 13 121 13352
Fiastra MC 14 559 13911
Visso MC 14 1107 15018
Gualdo MC 16 815 15833
Palmiano AP 16 196 16029
Smerillo FM 17 365 16394
Montefalcone Appennino FM 17 424 16818
Monte San Martino MC 18 765 17583
Fiordimonte MC 18 202 17785
Arquata del Tronto AP 18 1178 18963
Force AP 19 1354 20317
Penna San Giovanni MC 19 1108 21425
Roccafluvione AP 19 2010 23435
Cessapalombo MC 19 512 23947
Preci PG 19 724 24671
Venarotta AP 20 2066 26737
San Ginesio MC 20 3498 30235

Municipalities with at least 50000 inhabitants

An earthquake occurred to
46 Km E of Foligno (57155 inhabitants)
47 Km NW of Teramo (54892 inhabitants)
65 Km NE of Terni (111501 inhabitants)
66 Km N of L'Aquila (69753 inhabitants)
74 Km E of Perugia (166134 inhabitants)
79 Km S of Ancona (100861 inhabitants)
86 Km NW of Montesilvano (53738 inhabitants)
94 Km NW of Pescara (121014 inhabitants)
98 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 1.6 2016-12-31
15:43:23		 42.9362 13.265 10 2016-12-31
15:56:14		 Sala Sismica INGV-Roma 38150561
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-12-31 15:43:23 ± 0.06
Latitude 42.9362 ± 0.0027
Longitude 13.2650 ± 0.0049
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 38150561

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 448
Semi-minor axis of confidence ellipse (meter) 152
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 73
Circular confidence region, given by single value of horizontal uncertainty (meter) 450.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 43
Number of defining phases 29
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.23
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.45596
Number of stations at which the event was observed 32
Number of stations from which data was used for origin computation 18
Magnitude information

ML:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 12
Type of magnitude ML
Reference to an origin 38150561
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-12-31 15:56:14
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.PAOL.HHZ. 2016-12-31T15:44:42.43 3.0 undecidable manual Sg 12.56 0
IV.MSAG.HHZ. 2016-12-31T15:44:36.77 3.0 undecidable manual Sn 1.94 0
IV.OVO.HHZ. 2016-12-31T15:44:36.44 3.0 undecidable manual Sn 3.85 0
CR.STON.BHZ. 2016-12-31T15:44:24.76 3.0 negative manual Pg 14.97 0
IV.TREG.HNZ. 2016-12-31T15:44:21.49 3.0 undecidable manual Sg 6.18 0
IV.CAFR.HHZ. 2016-12-31T15:44:16.78 3.0 undecidable manual Sg 12.1 0
IV.ZONE.HHZ. 2016-12-31T15:44:00.60 3.0 positive manual Pg 4.66 0
GU.RNCA.HHZ. 2016-12-31T15:43:59.63 3.0 undecidable manual Pg 5.35 0
IV.T1211.EHZ. 2016-12-31T15:43:42.33 3.0 undecidable manual Sn -0.72 0
IV.ASSB.HHZ. 2016-12-31T15:43:40.67 0.6 undecidable manual S 284 50.616 50 0.62 41
IV.BRSN.HNZ. 2016-12-31T15:43:38.15 3.0 undecidable manual Sn -3.1 0
IV.SNTG.HHZ. 2016-12-31T15:43:38.78 0.3 undecidable manual S 324 44.0226 50 0.47 65
IV.VIVA.HHZ. 2016-12-31T15:43:36.84 3.0 undecidable manual Pn -3.31 0
IV.ASSB.HHZ. 2016-12-31T15:43:33.23 0.1 undecidable manual P 284 50.616 50 0.04 94
IV.T1212.EHZ. 2016-12-31T15:43:33.74 0.6 undecidable manual S 221 27.2505 50 -0.08 49
IV.EL6.EHZ. 2016-12-31T15:43:32.78 3.0 undecidable manual S 1.49 0
IV.TERO.HHZ. 2016-12-31T15:43:32.24 0.1 undecidable manual P 141 44.4222 50 0.01 96
IV.T1220.EHZ. 2016-12-31T15:43:32.74 0.3 undecidable manual S 324 24.0537 112 -0.07 74
IV.RM33.EHZ. 2016-12-31T15:43:32.91 1.0 undecidable manual P 185 47.5191 50 0.19 23
IV.SNTG.HHZ. 2016-12-31T15:43:31.32 0.1 undecidable manual P 324 44.0226 50 -0.86 75
IV.T1216.EHZ. 2016-12-31T15:43:31.86 0.6 undecidable manual S 256 20.5683 115 0.13 49
IV.T1214.EHZ. 2016-12-31T15:43:31.75 0.6 undecidable manual S 193 20.1687 116 0.18 48
IV.T1218.EHZ. 2016-12-31T15:43:30.20 0.1 undecidable manual P 202 31.9458 50 -0.12 96
IV.T1241.EHZ. 2016-12-31T15:43:30.25 0.6 undecidable manual S 123 16.1727 121 -0.11 49
IV.NRCA.HHZ. 2016-12-31T15:43:30.44 0.6 undecidable manual S 227 16.7721 120 -0.09 49
IV.T1299.EHZ. 2016-12-31T15:43:30.64 0.6 negative manual P 178 33.5442 50 0.08 48
IV.GUMA.HHZ. 2016-12-31T15:43:30.52 0.6 undecidable manual S 22 15.1737 123 0.45 46
IV.T1212.EHZ. 2016-12-31T15:43:29.60 0.1 undecidable manual P 221 27.2505 50 0.02 99
IV.IMOL.HNZ. 2016-12-31T15:43:29.72 3.0 positive manual P -1.4 0
IV.CESI.HHZ. 2016-12-31T15:43:29.99 0.1 undecidable manual P 285 30.2475 50 -0.06 97
IV.T1243.HHZ. 2016-12-31T15:43:29.88 0.1 undecidable manual P 151 30.4473 50 -0.21 94
IV.T1220.EHZ. 2016-12-31T15:43:28.88 0.1 undecidable manual P 324 24.0537 112 -0.13 97
IV.T1245.HHZ. 2016-12-31T15:43:28.74 0.6 undecidable manual S 215 10.7781 132 -0.14 49
IV.T1216.EHZ. 2016-12-31T15:43:28.38 0.1 undecidable manual P 256 20.5683 115 0 100
IV.T1214.EHZ. 2016-12-31T15:43:28.34 0.1 undecidable manual P 193 20.1687 116 0.05 99
IV.NRCA.HHZ. 2016-12-31T15:43:27.76 0.1 positive manual P 227 16.7721 120 0.07 99
IV.GUMA.HHZ. 2016-12-31T15:43:27.77 0.1 undecidable manual P 22 15.1737 123 0.35 94
IV.FDMO.HHZ. 2016-12-31T15:43:27.92 0.3 undecidable manual P 308 18.1707 118 -0.03 75
IV.T1241.EHZ. 2016-12-31T15:43:27.64 0.1 undecidable manual P 123 16.1727 121 0.05 100
IV.T1256.HHZ. 2016-12-31T15:43:27.73 0.6 undecidable manual S 338 8.3805 139 -0.56 45
IV.T1256.HHZ. 2016-12-31T15:43:26.29 0.1 undecidable manual P 338 8.3805 139 -0.1 100
IV.T1245.HHZ. 2016-12-31T15:43:26.92 0.1 undecidable manual P 215 10.7781 132 0.19 98
IV.BADI.EHZ. 2016-12-31T15:43:22.61 3.0 undecidable manual S -1.4 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.2 0.0000712 0.46 AML other m 2016-12-31T15:43:35.17
IV.CESI.HHN. ML:1.3 0.0001069 1.08 AML other m 2016-12-31T15:43:36.00
IV.GUMA.HHE. ML:1.7 0.000435 1.42 AML other m 2016-12-31T15:43:30.73
IV.GUMA.HHN. ML:1.8 0.0005745 0.16 AML other m 2016-12-31T15:43:30.81
IV.NRCA.HHN. ML:1.8 0.0005420000000000001 0.1 AML other m 2016-12-31T15:43:30.98
IV.NRCA.HHE. ML:1.9 0.0006765 0.12 AML other m 2016-12-31T15:43:31.11
IV.RM33.EHN. ML:1.2 0.0000453 0.44 AML other m 2016-12-31T15:43:43.25
IV.RM33.EHE. ML:1.2 0.000045600000000000004 0.42 AML other m 2016-12-31T15:44:03.66
IV.T1212.EHN. ML:1.6 0.0002395 1.48 AML other m 2016-12-31T15:43:33.89
IV.T1212.HNN. ML:1.7 0.000249 1.06 AML other m 2016-12-31T15:43:34.68
IV.T1212.HNE. ML:2.1 0.0006565 1.52 AML other m 2016-12-31T15:43:47.91
IV.T1212.EHE. ML:1.9 0.0004345 0.14 AML other m 2016-12-31T15:43:33.90
IV.T1214.EHN. ML:1.5 0.00021300000000000003 0.16 AML other m 2016-12-31T15:43:32.68
IV.T1214.EHE. ML:1.3 0.00016225000000000001 1.04 AML other m 2016-12-31T15:43:32.26
IV.T1216.EHE. ML:1.4 0.0001625 0.38 AML other m 2016-12-31T15:43:32.08
IV.T1216.EHN. ML:1.4 0.00020750000000000003 0.28 AML other m 2016-12-31T15:43:32.22
IV.T1220.EHN. ML:2.1 0.0008615000000000001 0.44 AML other m 2016-12-31T15:43:34.39
IV.T1220.EHE. ML:2.1 0.000768 0.68 AML other m 2016-12-31T15:43:35.01
IV.T1220.HNE. ML:2.1 0.0007740000000000001 0.68 AML other m 2016-12-31T15:43:35.35
IV.T1220.HNN. ML:2.2 0.0009135 0.42 AML other m 2016-12-31T15:43:34.17
IV.T1241.EHE. ML:1.2 0.0001365 1.58 AML other m 2016-12-31T15:43:31.87
IV.T1241.EHN. ML:1.2 0.00015799999999999996 1.34 AML other m 2016-12-31T15:43:32.11
IV.T1245.HNE. ML:1.6 0.0005875 0.2 AML other m 2016-12-31T15:43:29.13
IV.T1245.HHE. ML:1.7 0.00069 0.2 AML other m 2016-12-31T15:43:29.14
IV.T1245.HNN. ML:2.0 0.0011125 0.72 AML other m 2016-12-31T15:43:29.50
IV.T1245.HHN. ML:1.9 0.0010425 0.72 AML other m 2016-12-31T15:43:29.50
IV.T1256.HHE. ML:1.3 0.000256 1.16 AML other m 2016-12-31T15:43:27.20
IV.T1256.HHN. ML:1.4 0.00035299999999999996 0.52 AML other m 2016-12-31T15:43:28.80
IV.TERO.HHE. ML:1.3 0.0000622 0.88 AML other m 2016-12-31T15:43:41.58
IV.TERO.HHN. ML:1.3 0.0000633 0.66 AML other m 2016-12-31T15:43:40.61
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