Earthquake with magnitude of ML 1.1 on date 27-12-2019 and time 20:33:56 (UTC) in region 1 km E Sant'Eusanio Forconese (AQ)

A magnitude ML 1.1 earthquake occured in region: 1 km E Sant'Eusanio Forconese (AQ), on

  • 27-12-2019 20:33:56 (UTC)
  • 27-12-2019 21:33:56 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.29, 13.54 at 6 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
Sant'Eusanio Forconese AQ 1 394 394
San Demetrio ne' Vestini AQ 2 1854 2248
Villa Sant'Angelo AQ 2 424 2672
Poggio Picenze AQ 4 1136 3808
Fossa AQ 4 721 4529
Fagnano Alto AQ 5 418 4947
Ocre AQ 5 1167 6114
Prata d'Ansidonia AQ 6 496 6610
Barisciano AQ 6 1828 8438
Rocca di Cambio AQ 7 533 8971
Fontecchio AQ 8 369 9340
Rocca di Mezzo AQ 9 1526 10866
San Pio delle Camere AQ 10 661 11527
Santo Stefano di Sessanio AQ 11 111 11638
Caporciano AQ 12 230 11868
Carapelle Calvisio AQ 12 87 11955
Tione degli Abruzzi AQ 12 310 12265
Castelvecchio Calvisio AQ 13 153 12418
Calascio AQ 14 137 12555
L'Aquila AQ 14 69753 82308
Lucoli AQ 17 1011 83319
Navelli AQ 17 554 83873
Ovindoli AQ 17 1227 85100
Castel del Monte AQ 18 413 85513
Ofena AQ 19 506 86019
Secinaro AQ 19 359 86378
Capestrano AQ 19 884 87262
Acciano AQ 19 327 87589
Tornimparte AQ 20 3187 90776

Municipalities with at least 50000 inhabitants

An earthquake occurred to
14 Km SE of L'Aquila (69753 inhabitants)
44 Km SW of Teramo (54892 inhabitants)
52 Km W of Chieti (51815 inhabitants)
56 Km W of Montesilvano (53738 inhabitants)
59 Km W of Pescara (121014 inhabitants)
71 Km NE of Tivoli (56533 inhabitants)
74 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km E of Terni (111501 inhabitants)
92 Km NE of Velletri (53303 inhabitants)
98 Km E 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 2019-12-27
20:33:56
42.29 13.54 6 2019-12-27
20:44:19
Sala Sismica INGV-Roma 75024131
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2019-12-27 20:33:56 ± 0.13
Latitude 42.29 ± 0.00
Longitude 13.54 ± 0.01
Depth (km) 6 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75024131

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 442
Semi-minor axis of confidence ellipse (meter) 313
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 259
Circular confidence region, given by single value of horizontal uncertainty (meter) 440
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 103
Number of associated phases, regardless of their use for origin computation 14
Number of defining phases 12
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
Epicentral distance of station farthest from the epicenter (degree) 0.32645
Number of stations at which the event was observed 9
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 75024131
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2019-12-27 20:44:19
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.RM33.HNE. 2019-12-27T20:34:09.52 0.3 undecidable manual S 313 0.3265 99 0.22 68
IV.PTQR.HHE. 2019-12-27T20:34:07.79 0.3 undecidable manual S 201 0.2851 101 0.03 71
IV.VCEL.EHZ. 2019-12-27T20:34:06.63 0.1 undecidable manual S 64 0.2464 102 0.35 90
IT.VNF1.HGZ. 2019-12-27T20:34:05.80 3.0 negative manual P -0.01 0
IV.GIGS.HHZ. 2019-12-27T20:34:03.16 0.3 undecidable manual S 8 0.1664 108 -0.17 71
IV.RM33.HNE. 2019-12-27T20:34:03.89 0.1 undecidable manual P 313 0.3265 99 -0.04 94
IV.PTQR.HHE. 2019-12-27T20:34:02.98 0.1 undecidable manual P 201 0.2851 101 -0.06 95
IV.VCEL.EHZ. 2019-12-27T20:34:02.16 0.1 undecidable manual P 64 0.2464 102 -0.03 96
IV.CAMP.HHE. 2019-12-27T20:34:02.29 0.3 undecidable manual P 339 0.2653 101 -0.31 68
IV.GIGS.HHZ. 2019-12-27T20:34:00.24 0.1 undecidable manual P 8 0.1664 108 -0.23 94
IV.FAGN.HHZ. 2019-12-27T20:33:59.16 0.1 undecidable manual S 125 0.0396 143 0.02 100
MN.AQU.HNN. 2019-12-27T20:33:59.84 0.1 undecidable manual P 304 0.1196 114 0.36 92
IV.FAGN.HHZ. 2019-12-27T20:33:57.88 0.1 undecidable manual P 125 0.0396 143 -0.17 97
IV.RCAV.EHZ. 2019-12-27T20:33:51.45 3.0 undecidable manual P 0.05 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FAGN.HHE. ML:0 0.002305 1.36 AML other m 2019-12-27T20:33:59.19
IV.FAGN.HHN. ML:0 0.001695 0.42 AML other m 2019-12-27T20:34:01.47
IV.GIGS.HHN. ML:0.8 5.78E-5 0.58 AML other m 2019-12-27T20:34:04.40
IV.GIGS.HHE. ML:1 7.845E-5 1.48 AML other m 2019-12-27T20:34:05.20
IV.VCEL.EHN. ML:1.3 0.000121 0.4 AML other m 2019-12-27T20:34:08.75
IV.VCEL.EHE. ML:1.4 0.000131 0.36 AML other m 2019-12-27T20:34:09.69
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