Earthquake with magnitude of ML 0.8 on date 27-01-2017 and time 09:55:35 (Italy) in region 4 km SW Campotosto (AQ)

A magnitude ML 0.8 earthquake occured in region: 4 km SW Campotosto (AQ), on

  • 27-01-2017 08:55:35 (UTC)
  • 27-01-2017 09:55:35 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.53, 13.36 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
Campotosto AQ 4 542 542
Capitignano AQ 5 665 1207
Montereale AQ 9 2581 3788
Barete AQ 10 737 4525
Crognaleto TE 10 1297 5822
Pizzoli AQ 11 4326 10148
Amatrice RI 13 2657 12805
Cagnano Amiterno AQ 13 1369 14174
Fano Adriano TE 15 296 14470
Pietracamela TE 16 271 14741
Cortino TE 16 656 15397
Borbona RI 18 617 16014
Scoppito AQ 19 3727 19741
Cittareale RI 19 482 20223
L'Aquila AQ 20 69753 89976

Municipalities with at least 50000 inhabitants

An earthquake occurred to
20 Km N of L'Aquila (69753 inhabitants)
32 Km W of Teramo (54892 inhabitants)
58 Km E of Terni (111501 inhabitants)
65 Km W of Montesilvano (53738 inhabitants)
69 Km W of Chieti (51815 inhabitants)
71 Km W of Pescara (121014 inhabitants)
72 Km SE of Foligno (57155 inhabitants)
78 Km NE of Tivoli (56533 inhabitants)
78 Km NE of Guidonia Montecelio (88673 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 0.8 2017-01-27
08:55:35
42.53 13.36 11 2017-01-27
09:08:37
Sala Sismica INGV-Roma 39895431
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2017-01-27 08:55:35 ± 0.12
Latitude 42.53 ± 0.01
Longitude 13.36 ± 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 39895431

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 682
Semi-minor axis of confidence ellipse (meter) 392
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 15
Circular confidence region, given by single value of horizontal uncertainty (meter) 680
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 145
Number of associated phases, regardless of their use for origin computation 17
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.2
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.24551
Number of stations at which the event was observed 10
Number of stations from which data was used for origin computation 7
Magnitude information

ML:0.8

Field Value
Value 0.8
Uncertainty 0.2
Num. used stations 5
Type of magnitude ML
Reference to an origin 39895431
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2017-01-27 09:08:37
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.MC2.EHZ. 2017-01-27T08:55:50.77 3.0 undecidable manual S 0.31 0
IV.T1216.EHZ. 2017-01-27T08:55:50.30 3.0 undecidable manual S -1.4 0
IV.LNSS.HHZ. 2017-01-27T08:55:45.39 0.6 undecidable manual S 288 0.2455 91 0.15 50
IV.T1218.HNN. 2017-01-27T08:55:44.44 0.1 undecidable manual S 309 0.2284 91 -0.3 94
MN.AQU.HHZ. 2017-01-27T08:55:44.21 3.0 undecidable manual S 0.16 0
IV.TERO.HHZ. 2017-01-27T08:55:43.72 0.6 undecidable manual S 62 0.2059 91 -0.35 48
IV.GIGS.HHZ. 2017-01-27T08:55:42.97 0.6 undecidable manual S 115 0.1754 91 -0.2 51
IV.SMA1.EHZ. 2017-01-27T08:55:41.06 0.3 undecidable manual S 351 0.1052 112 -0.05 76
IV.LNSS.HHZ. 2017-01-27T08:55:41.23 0.1 positive manual P 288 0.2455 91 0.1 100
IV.T1218.HNN. 2017-01-27T08:55:40.95 0.1 undecidable manual P 309 0.2284 91 0.1 100
IV.GIGS.HHZ. 2017-01-27T08:55:40.10 1.0 negative manual P 115 0.1754 91 0.16 24
IV.RM33.EHZ. 2017-01-27T08:55:40.79 0.6 undecidable manual S 260 0.1061 111 -0.36 48
IV.TERO.HHZ. 2017-01-27T08:55:40.49 0.3 negative manual P 62 0.2059 91 0.03 76
IV.CAMP.HHE. 2017-01-27T08:55:39.59 0.6 undecidable manual S 77 0.0396 152 -0.1 52
IV.SMA1.EHZ. 2017-01-27T08:55:39.15 0.1 undecidable manual P 351 0.1052 112 0.4 96
IV.RM33.EHZ. 2017-01-27T08:55:38.87 0.3 positive manual P 260 0.1061 111 0.1 76
IV.CAMP.HHE. 2017-01-27T08:55:37.98 0.3 undecidable manual P 77 0.0396 152 0.05 78
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
MN.AQU.HHE. ML:0.8 5.132941E-5 0.1408 AML other m 2017-01-27T08:55:44.29
IV.GIGS.HHE. ML:0.1 1.1247884E-5 0.2176 AML other m 2017-01-27T08:55:43.69
IV.LNSS.HHN. ML:0.8 3.708574E-5 0.32 AML other m 2017-01-27T08:55:45.85
IV.RM33.EHE. ML:0.9 8.405E-5 1.28 AML other m 2017-01-27T08:55:41.06
IV.SMA1.EHN. ML:0.7 5.3591055E-5 0.48 AML other m 2017-01-27T08:55:42.03
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download