Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 26-01-2017 and time 16:00:22 (Italy) in region 3 km SE Bolognola (MC)

A magnitude ML 1.7 earthquake occured in region: 3 km SE Bolognola (MC), on

  • 26-01-2017 15:00:22 (UTC)
  • 26-01-2017 16:00:22 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.9730, 13.2570 at 24 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
Bolognola MC 4 142 142
Montefortino FM 8 1178 1320
Sarnano MC 8 3264 4584
Amandola FM 8 3629 8213
Acquacanina MC 9 121 8334
Montemonaco AP 10 604 8938
Ussita MC 10 444 9382
Fiastra MC 11 559 9941
Castelsantangelo sul Nera MC 12 281 10222
Gualdo MC 13 815 11037
Comunanza AP 13 3166 14203
Visso MC 14 1107 15310
Cessapalombo MC 15 512 15822
Fiordimonte MC 15 202 16024
Montegallo AP 16 523 16547
Smerillo FM 16 365 16912
San Ginesio MC 16 3498 20410
Monte San Martino MC 16 765 21175
Montefalcone Appennino FM 17 424 21599
Penna San Giovanni MC 17 1108 22707
Pievebovigliana MC 17 866 23573
Camporotondo di Fiastrone MC 18 563 24136
Sant'Angelo in Pontano MC 18 1436 25572
Palmiano AP 18 196 25768
Pieve Torina MC 19 1458 27226
Caldarola MC 19 1823 29049
Force AP 19 1354 30403

Municipalities with at least 50000 inhabitants

An earthquake occurred to
45 Km E of Foligno (57155 inhabitants)
51 Km NW of Teramo (54892 inhabitants)
68 Km NE of Terni (111501 inhabitants)
70 Km N of L'Aquila (69753 inhabitants)
72 Km E of Perugia (166134 inhabitants)
75 Km S of Ancona (100861 inhabitants)
89 Km NW of Montesilvano (53738 inhabitants)
96 Km NW of Pescara (121014 inhabitants)
99 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 1.7 2017-01-26
15:00:22		 42.9728 13.2573 24 2017-01-26
15:18:38		 Sala Sismica INGV-Roma 39843831
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-26 15:00:22 ± 0.07
Latitude 42.9728 ± 0.0027
Longitude 13.2573 ± 0.0037
Depth (km) 24 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 39843831

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 349
Semi-minor axis of confidence ellipse (meter) 77
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 102
Circular confidence region, given by single value of horizontal uncertainty (meter) 350.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 65
Number of associated phases, regardless of their use for origin computation 36
Number of defining phases 36
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.15
Epicentral distance of station closest to the epicenter (degree) 0.07914
Epicentral distance of station farthest from the epicenter (degree) 0.46495
Number of stations at which the event was observed 21
Number of stations from which data was used for origin computation 21
Magnitude information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 7
Type of magnitude ML
Reference to an origin 39843831
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-26 15:18:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.EL6.EHZ. 2017-01-26T15:00:37.21 0.3 undecidable manual S 342 41.5251 113 0.35 66
IV.SNTG.HHZ. 2017-01-26T15:00:36.74 0.3 undecidable manual S 321 40.4262 113 0.14 69
IV.T1215.EHZ. 2017-01-26T15:00:35.89 0.6 undecidable manual S 239 36.8298 116 0.17 46
IV.T1218.EHZ. 2017-01-26T15:00:35.69 0.3 undecidable manual S 199 35.5422 117 0.29 68
IV.T1212.EHZ. 2017-01-26T15:00:34.48 0.3 undecidable manual S 215 30.0477 122 0.36 68
IV.T1219.EHZ. 2017-01-26T15:00:32.33 0.3 undecidable manual S 294 22.4553 131 -0.16 71
IV.RM33.EHZ. 2017-01-26T15:00:32.10 0.3 undecidable manual P 184 51.6039 108 -0.2 68
IV.T1216.EHZ. 2017-01-26T15:00:32.17 0.3 undecidable manual S 245 21.3675 132 -0.1 72
IV.FDMO.HHZ. 2017-01-26T15:00:31.01 0.6 undecidable manual S 297 15.4734 143 -0.2 48
IV.CING.HHZ. 2017-01-26T15:00:31.28 0.3 undecidable manual P 354 44.9217 111 -0.06 70
IV.T1245.HHZ. 2017-01-26T15:00:31.07 0.3 undecidable manual S 204 14.0748 145 0.09 74
IV.NRCA.HNE. 2017-01-26T15:00:31.71 0.6 undecidable manual S 217 19.3695 136 -0.17 48
IV.T1220.EHZ. 2017-01-26T15:00:31.98 0.3 undecidable manual S 318 20.4684 134 -0.11 72
IV.FEMA.HNE. 2017-01-26T15:00:31.85 0.3 undecidable manual S 266 16.872 140 0.41 69
IV.TERO.HHZ. 2017-01-26T15:00:31.60 0.3 undecidable manual P 144 48.0186 109 -0.18 68
IV.SNTG.HHZ. 2017-01-26T15:00:30.95 0.3 undecidable manual P 321 40.4262 113 0.25 68
IV.T1299.EHZ. 2017-01-26T15:00:30.29 0.3 undecidable manual P 177 37.629 115 -0.01 72
IV.OFFI.HHZ. 2017-01-26T15:00:30.11 0.3 undecidable manual P 97 35.0427 117 0.17 70
IV.MC2.EHZ. 2017-01-26T15:00:30.32 0.3 undecidable manual S 219 8.7801 157 0.02 75
IV.CSP1.EHZ. 2017-01-26T15:00:30.77 0.3 undecidable manual S 342 13.875 146 -0.19 72
IV.T1215.EHZ. 2017-01-26T15:00:30.13 0.3 undecidable manual P 239 36.8298 116 -0.06 72
IV.EL6.EHZ. 2017-01-26T15:00:30.82 0.3 undecidable manual P 342 41.5251 113 -0.03 71
IV.GUMA.HHZ. 2017-01-26T15:00:30.66 0.3 undecidable manual S 32 11.7771 150 0 74
IV.T1218.EHZ. 2017-01-26T15:00:30.02 0.3 positive manual P 199 35.5422 117 0.01 72
IV.CESI.HHZ. 2017-01-26T15:00:29.11 0.1 positive manual P 277 28.8489 123 0 97
IV.T1212.EHZ. 2017-01-26T15:00:29.28 0.3 undecidable manual P 215 30.0477 122 0.02 72
IV.T1220.EHZ. 2017-01-26T15:00:28.00 0.3 undecidable manual P 318 20.4684 134 -0.09 73
IV.T1216.EHZ. 2017-01-26T15:00:28.10 0.3 positive manual P 245 21.3675 132 -0.1 73
IV.T1219.EHZ. 2017-01-26T15:00:28.16 0.1 undecidable manual P 294 22.4553 131 -0.16 95
IV.CSP1.EHZ. 2017-01-26T15:00:27.29 0.1 undecidable manual P 342 13.875 146 -0.15 97
IV.FEMA.HNE. 2017-01-26T15:00:27.82 0.6 undecidable manual P 266 16.872 140 0.1 49
IV.GUMA.HHZ. 2017-01-26T15:00:27.33 0.1 negative manual P 32 11.7771 150 0.06 99
IV.FDMO.HHZ. 2017-01-26T15:00:27.41 0.6 positive manual P 297 15.4734 143 -0.17 48
IV.MC2.EHZ. 2017-01-26T15:00:27.11 0.1 undecidable manual P 219 8.7801 157 0.05 100
IV.T1245.HHZ. 2017-01-26T15:00:27.49 0.1 positive manual P 204 14.0748 145 0.03 99
IV.NRCA.HNE. 2017-01-26T15:00:27.75 0.1 undecidable manual P 217 19.3695 136 -0.22 95
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.CESI.HHE. ML:1.5 0.0001227 0.68 AML other m 2017-01-26T15:00:35.80
IV.CESI.HHN. ML:1.8 0.00023349999999999998 0.2 AML other m 2017-01-26T15:00:35.68
IV.CSP1.EHE. ML:1.6 0.0002175 1.54 AML other m 2017-01-26T15:00:30.20
IV.CSP1.EHN. ML:1.4 0.0001384 0.42 AML other m 2017-01-26T15:00:31.66
IV.FDMO.HHE. ML:1.7 0.000288 0.14 AML other m 2017-01-26T15:00:33.86
IV.FDMO.HHN. ML:1.7 0.000275 1.8 AML other m 2017-01-26T15:00:34.98
IV.GUMA.HHN. ML:1.6 0.000248 1.58 AML other m 2017-01-26T15:00:31.14
IV.GUMA.HHE. ML:1.5 0.000207 1.56 AML other m 2017-01-26T15:00:31.20
IV.T1216.EHN. ML:1.6 0.0001795 0.86 AML other m 2017-01-26T15:00:35.49
IV.T1216.EHE. ML:1.6 0.00020850000000000003 0.6 AML other m 2017-01-26T15:00:35.37
IV.T1219.EHE. ML:1.5 0.000161 0.28 AML other m 2017-01-26T15:00:32.51
IV.T1219.EHN. ML:1.6 0.00016849999999999998 1 AML other m 2017-01-26T15:00:33.61
IV.T1245.HNN. ML:2.0 0.000585 0.8 AML other m 2017-01-26T15:00:31.59
IV.T1245.HHE. ML:2.1 0.0006730000000000001 0.68 AML other m 2017-01-26T15:00:31.68
IV.T1245.HNE. ML:2.1 0.000782 0.7 AML other m 2017-01-26T15:00:31.34
IV.T1245.HHN. ML:1.9 0.000527 0.12 AML other m 2017-01-26T15:00:31.58
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