Earthquake with magnitude of ML 1.1 on date 31-01-2017 and time 22:37:03 (Italy) in region 4 km E Capitignano (AQ)

A magnitude ML 1.1 earthquake occured in region: 4 km E Capitignano (AQ), on

  • 31-01-2017 21:37:03 (UTC)
  • 31-01-2017 22:37:03 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.52, 13.35 at 11 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
Capitignano AQ 4 665 665
Campotosto AQ 5 542 1207
Montereale AQ 8 2581 3788
Barete AQ 9 737 4525
Pizzoli AQ 10 4326 8851
Crognaleto TE 11 1297 10148
Cagnano Amiterno AQ 12 1369 11517
Amatrice RI 13 2657 14174
Fano Adriano TE 16 296 14470
Pietracamela TE 17 271 14741
Cortino TE 17 656 15397
Borbona RI 18 617 16014
Scoppito AQ 18 3727 19741
Cittareale RI 19 482 20223
L'Aquila AQ 19 69753 89976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
19 Km N of L'Aquila (69753 inhabitants)
33 Km W of Teramo (54892 inhabitants)
57 Km E of Terni (111501 inhabitants)
66 Km W of Montesilvano (53738 inhabitants)
70 Km W of Chieti (51815 inhabitants)
71 Km SE of Foligno (57155 inhabitants)
71 Km W of Pescara (121014 inhabitants)
77 Km NE of Tivoli (56533 inhabitants)
77 Km NE of Guidonia Montecelio (88673 inhabitants)
100 Km NE of Roma (2864731 inhabitants)
Recent and historical Seismicity
Seismic hazard
Shakemap
Felt maps
The earthquake effects in MCS scale as obtained from the compiled questionnaire

The earthquake effects in MCS scale as obtained from the compiled questionnaire

This map shows the distribution of the effects of the earthquake on the territory in terms of the MCS (Mercalli-Cancani-Sieberg) intensity scale. The intensities are determined using the data provided in the questionnaire (http://www.haisentitoilterremoto.it/) that are analysed using robust statistical techniques since they are not verified individually. Specifically, the assignment of MCS intensities greater or equal the VI degree of the MCS scale require opportune in situ verification by professional experts. The purple start shows the epicenter. This map is prepared every so often that the population fill in new questionnaires. The number of questionnaires used to determine the map and the date and time of the last adjournment are shown in the upper right part of the panel.
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Rev 100 ML 1.1 2017-01-31
21:37:03
42.52 13.35 11 2017-01-31
21:46:31
Sala Sismica INGV-Roma 40259981
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-31 21:37:03 ± 0.07
Latitude 42.52 ± 0.00
Longitude 13.35 ± 0.01
Depth (km) 11 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 40259981

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 492
Semi-minor axis of confidence ellipse (meter) 430
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 100
Circular confidence region, given by single value of horizontal uncertainty (meter) 490
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 135
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.31926
Number of stations at which the event was observed 8
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 4
Type of magnitude ML
Reference to an origin 40259981
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-31 21:46:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.T1212.EHZ. 2017-01-31T21:37:15.44 1.0 undecidable manual S 316 0.3193 90 -0.13 24
IV.CAFI.HHZ. 2017-01-31T21:37:14.34 3.0 undecidable manual P 1.81 0
IV.T1218.EHZ. 2017-01-31T21:37:12.56 1.0 undecidable manual S 311 0.2257 90 -0.23 23
IV.T1212.EHZ. 2017-01-31T21:37:10.54 0.3 undecidable manual P 316 0.3193 90 0.01 73
IV.T1222.EHZ. 2017-01-31T21:37:09.49 0.1 undecidable manual P 242 0.2581 90 0.02 98
IV.T1299.EHZ. 2017-01-31T21:37:09.65 0.6 undecidable manual S 337 0.1223 96 -0.07 50
IV.T1247.HHZ. 2017-01-31T21:37:08.46 0.6 undecidable manual S 204 0.0872 121 -0.3 48
IV.GIGS.HHZ. 2017-01-31T21:37:08.00 0.1 undecidable manual P 112 0.1799 90 -0.14 99
IV.RM33.EHZ. 2017-01-31T21:37:08.90 0.6 undecidable manual S 263 0.098 115 -0.14 49
IV.T1218.EHZ. 2017-01-31T21:37:08.91 0.3 undecidable manual P 311 0.2257 90 -0.02 74
IV.T1299.EHZ. 2017-01-31T21:37:07.29 0.1 negative manual P 337 0.1223 96 0.14 98
IV.T1247.HHZ. 2017-01-31T21:37:06.77 0.1 positive manual P 204 0.0872 121 0.18 98
IV.RM33.EHZ. 2017-01-31T21:37:06.84 0.1 undecidable manual P 263 0.098 115 0.09 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HHE. ML:0 7.965E-5 0.68 AML other m 2017-01-31T21:37:13.60
IV.LNSS.HHN. ML:0 8.56E-5 1.24 AML other m 2017-01-31T21:37:14.89
IV.RM33.EHE. ML:1.1 0.000151 1.72 AML other m 2017-01-31T21:37:08.95
IV.RM33.EHN. ML:1.1 0.0001445 1.2 AML other m 2017-01-31T21:37:09.07
IV.T1247.HHE. ML:1.7 0.000638 0.14 AML other m 2017-01-31T21:37:10.48
IV.T1247.HHN. ML:1.6 0.000479 0.12 AML other m 2017-01-31T21:37:10.60
IV.T1299.EHN. ML:0.8 7.005E-5 0.26 AML other m 2017-01-31T21:37:09.83
IV.T1299.EHE. ML:0.9 7.27E-5 1.6 AML other m 2017-01-31T21:37:10.10
IV.TERO.HHN. ML:1 6.74E-5 0.98 AML other m 2017-01-31T21:37:12.13
IV.TERO.HHE. ML:1.2 8.495E-5 0.1 AML other m 2017-01-31T21:37:13.34
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download