Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 2.6 on date 31-10-2016 and time 00:12:53 (Italy) in region 3 km E Preci (PG)

A magnitude ML 2.6 earthquake occured in region: 3 km E Preci (PG), on

  • 30-10-2016 23:12:53 (UTC)
  • 31-10-2016 00:12:53 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.8830, 13.0820 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Preci PG 4 724 724
Visso MC 6 1107 1831
Castelsantangelo sul Nera MC 6 281 2112
Ussita MC 8 444 2556
Norcia PG 10 4957 7513
Sellano PG 13 1079 8592
Monte Cavallo MC 14 145 8737
Cerreto di Spoleto PG 15 1075 9812
Bolognola MC 17 142 9954
Fiordimonte MC 17 202 10156
Acquacanina MC 18 121 10277
Fiastra MC 18 559 10836
Pieve Torina MC 18 1458 12294
Cascia PG 19 3217 15511
Pievebovigliana MC 20 866 16377

Municipalities with at least 50000 inhabitants

An earthquake occurred to
32 Km E of Foligno (57155 inhabitants)
50 Km NE of Terni (111501 inhabitants)
57 Km W of Teramo (54892 inhabitants)
62 Km E of Perugia (166134 inhabitants)
64 Km NW of L'Aquila (69753 inhabitants)
89 Km SW of Ancona (100861 inhabitants)
95 Km NE of Viterbo (67173 inhabitants)
96 Km W of Montesilvano (53738 inhabitants)
Recent and historical seismicity

These maps show the seismic activity in different time intervals, before the seismic event to which they refer. Data reported in the first two maps come from the analysis carried out in real time by the personnel of the INGV Operating Rooms, immediately after each earthquake. The third map shows data from 1985 to the date of the earthquake: the locations are reviewed by the seismological analysts of the INGV Italian Seismic Bulletin (Bollettino Sismico Italiano dell’INGV). The localization parameters (hypocentral coordinates and magnitude) are the best possible estimate with the data available to the INGV, but are constantly updated according to further data that become available. The location and magnitude parameters, subsequently reviewed by seismological analysts, may vary.

Earthquakes of the 3 days preceding this event

Earthquakes of the 3 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 0.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 72 hours preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes of the 90 days preceding this event

Earthquakes of the 90 days preceding this event

This map shows the earthquake epicenters with magnitude ≥ 2.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, in the 90 days preceding this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes from 1985 to the date of the event

Earthquakes from 1985 to the date of the event

This map shows the earthquake epicenters with magnitude ≥ 3.0, localized with data recorded by the National Seismic Network and other collaborative networks both in Italy and in neighboring countries, from 1985 to the date of this event. The size of the circle indicates the different classes of magnitude. The colors indicate the different time intervals preceding the seismic event. The black and white star is the epicenter of the current earthquake.
Earthquakes since 1000 AD until 2019

Earthquakes since 1000 AD until 2019

This map shows the epicenters of the historical earthquakes catalogue CPT15 (Catalogo Parametrico dei Terremoti Italiani, 2015 version 3.0, https://doi.org/10.13127/cpti/cpti15.3) since 1000 AD until 2019. The size of the square indicates the different classes of magnitude. For earthquakes with magnitude ≥ 6.0, it is also shown the year of occurrence and the magnitude value. The black and white star is the epicenter of the current earthquake.
Seismic hazard

Seismic hazard maps provide probabilistic estimates of the earthquake ground shaking exceeding a given threshold in a given geographic region within a given time window. Thus, it is not a deterministic prediction - a target that may be never reached given the complexity of the earthquake physical phenomenon - nor of the maximum expected earthquake since this has extremely low probabilities to occur.

In 2004, it was published the seismic hazard map of Italy (http://zonesismiche.mi.ingv.it) that provides a picture of the most hazardous geographic regions. The seismic hazard map of Italy (GdL MPS, 2004; rif. Ordinanza PCM del 28 aprile 2006, n. 3519, All. 1b) provides the 10% probability of exceedance in 50 years of the horizontal acceleration at rock sites (i.e., Vs30>800 m/s; cat. A, 3.2.1 of the D.M. 14.09.2005).

The colours indicate the various values of the ground acceleration that have 10% to be exceeded within 50 years. In general, the colours associated to low values of acceleration refer to areas that are less hazardous and stronger earthquakes repeat less frequently although they may still occur.

Seismic hazard map

Seismic hazard map

This map shows the seismic hazard map of Italy for the region where the earthquake occurred.
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 2.6 2016-10-30
23:12:53		 42.8827 13.0822 10 2019-02-12
14:03:24		 Bollettino Sismico Italiano INGV 48651591
Reviewed
Rev100 		ML 2.7 2016-10-30
23:12:53		 42.8832 13.0842 10 2016-10-30
23:26:31		 Sala Sismica INGV-Roma 31157821
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-30 23:12:53 ± 0.03
Latitude 42.8827 ± 0.0018
Longitude 13.0822 ± 0.0025
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 48651591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 230
Semi-minor axis of confidence ellipse (meter) 107
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 47
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) 36
Number of associated phases, regardless of their use for origin computation 84
Number of defining phases 84
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) 0.04676
Epicentral distance of station farthest from the epicenter (degree) 0.92810
Number of stations at which the event was observed 56
Number of stations from which data was used for origin computation 56
Magnitudes information

ML:2.6

Field Value
Value 2.6
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 48651591
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2017-08-03 16:18:50

ML:2.7

Field Value
Value 2.7
Uncertainty 0.3
Num. used stations 3
Type of magnitude ML
Reference to an origin 31157821
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-30 23:26:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CAFI.HHZ. 2016-10-30T23:13:11.69 0.3 undecidable manual P 299 103.0191 50 0.25 61
IV.SACS.HHZ. 2016-10-30T23:13:10.61 0.3 undecidable manual P 268 95.4378 50 0.35 61
IV.ATCC.EHZ. 2016-10-30T23:13:10.02 0.3 undecidable manual S 313 49.1175 50 0.21 68
IV.CESX.HHZ. 2016-10-30T23:13:10.52 0.6 undecidable manual S 233 50.5161 50 0.32 44
IV.TERO.HHZ. 2016-10-30T23:13:10.31 0.3 undecidable manual S 124 51.3153 50 -0.11 70
IV.FSSB.HHZ. 2016-10-30T23:13:10.31 0.3 undecidable manual P 345 93.24 50 0.39 60
IV.CAMP.HHZ. 2016-10-30T23:13:09.03 0.6 undecidable manual S 145 46.8198 50 -0.17 46
IV.MPAG.EHZ. 2016-10-30T23:13:09.26 0.3 undecidable manual P 343 86.8464 50 0.32 62
IV.T0110.HHZ. 2016-10-30T23:13:09.71 0.6 undecidable manual P 142 92.0412 50 -0.03 44
IV.NARO.HHZ. 2016-10-30T23:13:09.47 0.3 undecidable manual P 334 90.3429 50 -0.01 66
IV.ARRO.EHZ. 2016-10-30T23:13:08.24 0.3 undecidable manual S 218 42.4242 50 0.21 69
IV.PIEI.HHZ. 2016-10-30T23:13:08.90 0.6 undecidable manual P 329 84.8484 50 0.26 42
IV.VCEL.EHZ. 2016-10-30T23:13:08.18 0.3 undecidable manual P 131 82.251 50 -0.05 66
IV.SNTG.HHZ. 2016-10-30T23:13:08.14 0.6 undecidable manual S 345 42.8238 50 -0.01 48
IV.ATMI.HHZ. 2016-10-30T23:13:08.85 0.6 undecidable manual P 307 82.7505 50 0.54 40
IV.FAGN.HHZ. 2016-10-30T23:13:08.76 0.3 undecidable manual P 149 79.7646 50 0.91 51
IV.ATPI.EHZ. 2016-10-30T23:13:08.58 0.3 undecidable manual P 319 83.6496 50 0.13 65
IV.T1246.HHN. 2016-10-30T23:13:08.99 0.6 undecidable manual S 135 47.1195 50 -0.3 45
IV.SRES.HHZ. 2016-10-30T23:13:08.79 0.6 undecidable manual P 213 85.5477 50 0.05 44
IV.ATVO.HHZ. 2016-10-30T23:13:07.35 0.3 undecidable manual P 316 77.8665 50 -0.2 65
IV.MGAB.HHZ. 2016-10-30T23:13:07.82 0.3 undecidable manual P 273 78.8655 50 0.11 66
IV.PP3.EHZ. 2016-10-30T23:13:07.02 0.3 undecidable manual P 38 69.5748 50 0.75 56
IV.GAG1.HNZ. 2016-10-30T23:13:07.38 0.6 undecidable manual S 358 39.4272 50 0.15 47
IV.TRTR.HHZ. 2016-10-30T23:13:07.17 0.1 undecidable manual P 97 68.1762 50 1.12 63
IV.FRON.EHZ. 2016-10-30T23:13:07.25 0.3 undecidable manual P 338 76.0683 50 -0.03 67
IV.T1243.HHZ. 2016-10-30T23:13:06.08 0.3 undecidable manual S 125 36.2415 50 -0.31 69
IV.ATTE.HHZ. 2016-10-30T23:13:06.07 0.3 undecidable manual P 301 68.6757 50 -0.06 68
IV.ASSB.HHZ. 2016-10-30T23:13:06.68 0.3 undecidable manual S 297 38.628 50 -0.35 68
IV.ARVD.HHZ. 2016-10-30T23:13:06.13 0.3 undecidable manual P 351 69.1752 50 -0.09 68
IV.T1299.HNN. 2016-10-30T23:13:05.54 0.6 undecidable manual S 149 32.0457 50 0.28 46
IV.FIAM.HHZ. 2016-10-30T23:13:05.94 0.3 undecidable manual P 178 68.2761 50 -0.14 67
IV.SMA1.EHZ. 2016-10-30T23:13:05.86 0.3 undecidable manual S 144 34.743 50 -0.13 71
IV.MURB.HHZ. 2016-10-30T23:13:05.02 0.3 undecidable manual P 313 61.7937 50 -0.06 69
MN.AQU.HHE. 2016-10-30T23:13:05.28 0.6 undecidable manual P 156 64.2912 50 -0.18 45
IV.ATFO.HHZ. 2016-10-30T23:13:05.92 0.3 undecidable manual P 323 67.7766 50 -0.07 68
IV.T1241.EHZ. 2016-10-30T23:13:04.28 0.3 undecidable manual S 96 28.5492 50 -0.04 73
IV.LNSS.HHZ. 2016-10-30T23:13:04.97 0.3 undecidable manual S 186 31.2465 50 -0.08 73
IV.T1201.HNN. 2016-10-30T23:13:04.63 0.6 undecidable manual S 151 28.5492 50 0.31 46
IV.GUMA.HHZ. 2016-10-30T23:13:04.54 0.3 undecidable manual S 46 28.6491 50 0.19 71
IV.T1204.EHZ. 2016-10-30T23:13:04.62 0.6 undecidable manual S 140 29.8479 50 -0.06 49
IV.GIGS.HHN. 2016-10-30T23:13:04.67 0.3 undecidable manual P 140 62.1933 50 -0.47 63
IV.SEF1.HNZ. 2016-10-30T23:13:04.81 0.3 undecidable manual S 340 31.2465 50 -0.24 70
IV.FOSV.EHZ. 2016-10-30T23:13:03.40 0.1 undecidable manual P 330 52.6029 50 -0.26 90
IV.CESX.HHZ. 2016-10-30T23:13:03.07 0.6 undecidable manual P 233 50.5161 50 -0.27 45
IV.TERO.HHZ. 2016-10-30T23:13:03.09 0.1 undecidable manual P 124 51.3153 50 -0.38 88
IV.EL6.EHZ. 2016-10-30T23:13:03.00 0.1 undecidable manual P 2 49.617 50 -0.19 91
IV.OFFI.HHZ. 2016-10-30T23:13:03.85 0.1 undecidable manual P 83 49.4172 50 0.69 80
IV.ATCC.EHZ. 2016-10-30T23:13:02.96 0.1 undecidable manual P 313 49.1175 50 -0.16 92
IV.T1246.HHN. 2016-10-30T23:13:02.52 0.1 undecidable manual P 135 47.1195 50 -0.3 90
IV.CAMP.HHZ. 2016-10-30T23:13:02.48 0.1 undecidable manual P 145 46.8198 50 -0.29 90
IV.T1217.EHZ. 2016-10-30T23:13:02.46 0.3 undecidable manual S 213 22.5552 114 -0.06 74
IV.T1244.EHZ. 2016-10-30T23:13:02.75 0.6 undecidable manual S 128 22.4553 114 0.28 47
IV.RM33.EHZ. 2016-10-30T23:13:02.48 0.3 undecidable manual P 165 42.8238 50 0.32 68
XO.AM05.EHZ. 2016-10-30T23:13:02.74 0.3 undecidable manual S 64 24.3534 112 -0.35 69
IV.MMO1.EHZ. 2016-10-30T23:13:01.39 0.3 undecidable manual S 85 19.9689 116 -0.31 70
IV.ASSB.HHZ. 2016-10-30T23:13:01.23 0.1 undecidable manual P 297 38.628 50 -0.29 91
IV.T1215.EHZ. 2016-10-30T23:13:01.42 0.3 undecidable manual S 243 19.5693 117 -0.15 73
IV.T1256.HHZ. 2016-10-30T23:13:01.06 0.6 undecidable manual S 40 17.9709 119 -0.04 50
IV.ARRO.EHZ. 2016-10-30T23:13:01.99 0.3 undecidable manual P 218 42.4242 50 -0.1 71
IV.SNTG.HHZ. 2016-10-30T23:13:01.90 0.3 undecidable manual P 345 42.8238 50 -0.26 68
IV.GAG1.HNZ. 2016-10-30T23:13:01.66 0.3 undecidable manual P 358 39.4272 50 0.03 72
IV.SEF1.HNZ. 2016-10-30T23:13:00.06 0.3 undecidable manual P 340 31.2465 50 -0.31 69
IV.LNSS.HHZ. 2016-10-30T23:13:00.32 0.3 undecidable manual P 186 31.2465 50 -0.05 73
IV.T1299.HNN. 2016-10-30T23:13:00.52 0.1 undecidable manual P 149 32.0457 50 0.03 97
IV.T1201.HNN. 2016-10-30T23:13:00.09 0.3 undecidable manual P 151 28.5492 50 0.14 72
IV.GUMA.HHZ. 2016-10-30T23:13:00.02 0.1 undecidable manual P 46 28.6491 50 0.05 98
IV.SMA1.EHZ. 2016-10-30T23:13:00.78 0.3 undecidable manual P 144 34.743 50 -0.13 71
IV.T1204.EHZ. 2016-10-30T23:13:00.03 0.3 undecidable manual P 140 29.8479 50 -0.12 72
IV.T1243.HHZ. 2016-10-30T23:13:00.90 0.1 undecidable manual P 125 36.2415 50 -0.25 93
IV.FDMO.HHN. 2016-10-30T23:13:00.56 0.6 undecidable manual S 1 17.0718 120 -0.25 48
XO.AM05.EHZ. 2016-10-30T23:12:59.15 0.1 undecidable manual P 64 24.3534 112 -0.09 98
IV.T1241.EHZ. 2016-10-30T23:12:59.94 0.1 undecidable manual P 96 28.5492 50 -0.01 99
IV.MMO1.EHZ. 2016-10-30T23:12:58.38 0.1 undecidable manual P 85 19.9689 116 -0.05 99
IV.FEMA.HNZ. 2016-10-30T23:12:58.60 0.6 undecidable manual S 343 9.1797 137 -0.05 51
IV.T1215.EHZ. 2016-10-30T23:12:58.41 0.1 undecidable manual P 243 19.5693 117 0.04 99
IV.T1256.HHZ. 2016-10-30T23:12:58.12 0.1 undecidable manual P 40 17.9709 119 0.03 100
IV.T1245.HNZ. 2016-10-30T23:12:58.75 0.3 undecidable manual S 109 9.0798 137 0.13 75
IV.T1217.EHZ. 2016-10-30T23:12:58.89 0.1 undecidable manual P 213 22.5552 114 -0.02 99
IV.T1244.EHZ. 2016-10-30T23:12:58.93 0.1 undecidable manual P 128 22.4553 114 0.05 99
IV.T1216.EHZ. 2016-10-30T23:12:57.76 0.3 undecidable manual S 280 5.1948 152 -0.08 76
IV.FDMO.HHN. 2016-10-30T23:12:57.86 0.1 undecidable manual P 1 17.0718 120 -0.06 99
IV.T1245.HNZ. 2016-10-30T23:12:56.93 0.1 undecidable manual P 109 9.0798 137 0.27 97
IV.T1216.EHZ. 2016-10-30T23:12:56.39 0.1 undecidable manual P 280 5.1948 152 0.18 99
IV.FEMA.HNZ. 2016-10-30T23:12:56.85 0.1 undecidable manual P 343 9.1797 137 0.18 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.T1215.EHE. ML:2.4 0.0019631874999999997 0.1664 AML other m 2016-10-30T23:13:01.98
IV.T1215.EHN. ML:2.5 0.002639099 0.128 AML other m 2016-10-30T23:13:01.52
IV.T1215.HNE. ML:2.4 0.0018743095000000002 0.1664 AML other m 2016-10-30T23:13:02.07
IV.T1215.HNN. ML:2.5 0.0024902540000000003 0.128 AML other m 2016-10-30T23:13:01.52
IV.T1217.EHN. ML:2.8 0.003911368 0.192 AML other m 2016-10-30T23:13:03.12
IV.T1217.HNN. ML:2.8 0.004011258 0.2304 AML other m 2016-10-30T23:13:02.63
IV.T1217.HNE. ML:2.5 0.0022582145000000003 0.192 AML other m 2016-10-30T23:13:03.48
IV.T1217.EHE. ML:2.5 0.002208392 0.192 AML other m 2016-10-30T23:13:03.58
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Fault Plane solutions

Fault Plane solutions

The map reports the fault plane solutions for earthquakes in the region from 1977 to the date of this event. Red moment tensors are determined using the Regional Centroid Moment Tensor technique (RCMT, http://www.bo.ingv.it/RCMT) applied for earthquakes with magnitude larger than 4.5 in the Euro-Mediterranenan area. Occasionally, when a station azimuthal coverage exists RCMTs can be obtained also for earthquakes with magnitude down to 4.0. The gray moment tensors are obtained with the Time Domain Moment Tensor method (TDMT, /tdmt). This technique is applied to earthquakes with magnitude ML greater than 3.2, when it is possible. The size of symbols scales with the calculated moment magnitude Mw.
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download
Waveforms Seismic signals in miniseed + resp format Download