Earthquake with magnitude of ML 1.3 on date 27-11-2020 and time 17:51:38 (Italy) in region 4 km SE Balsorano (AQ)

A magnitude ML 1.3 earthquake occured in region: 4 km SE Balsorano (AQ), on

  • 27-11-2020 16:51:38 (UTC)
  • 27-11-2020 17:51:38 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.78, 13.6 at 14 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
Balsorano AQ 4 3569 3569
Pescosolido FR 6 1555 5124
Sora FR 7 26144 31268
Campoli Appennino FR 8 1725 32993
San Vincenzo Valle Roveto AQ 8 2347 35340
Broccostella FR 9 2741 38081
Villavallelonga AQ 10 919 39000
Isola del Liri FR 12 11715 50715
Collelongo AQ 12 1233 51948
Castelliri FR 12 3454 55402
Posta Fibreno FR 13 1139 56541
Fontechiari FR 14 1303 57844
Morino AQ 15 1448 59292
Arpino FR 15 7262 66554
Vicalvi FR 15 783 67337
Civita d'Antino AQ 16 979 68316
Alvito FR 16 2713 71029
Pescasseroli AQ 16 2203 73232
Monte San Giovanni Campano FR 17 12929 86161
Veroli FR 18 20560 106721
Lecce nei Marsi AQ 19 1702 108423
Boville Ernica FR 19 8737 117160
Collepardo FR 19 968 118128
Fontana Liri FR 19 2953 121081
Casalvieri FR 19 2698 123779
Opi AQ 20 420 124199
Ortucchio AQ 20 1860 126059
San Donato Val di Comino FR 20 2107 128166
Santopadre FR 20 1357 129523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of L'Aquila (69753 inhabitants)
67 Km NE of Latina (125985 inhabitants)
69 Km E of Velletri (53303 inhabitants)
69 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km SW of Chieti (51815 inhabitants)
81 Km E of Aprilia (73446 inhabitants)
89 Km E of Anzio (54211 inhabitants)
92 Km SW of Pescara (121014 inhabitants)
92 Km E of Pomezia (62966 inhabitants)
93 Km E of Roma (2864731 inhabitants)
94 Km SW of Montesilvano (53738 inhabitants)
98 Km S of Teramo (54892 inhabitants)
100 Km NW of Caserta (76326 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
Reviewed
Rev100
ML 1.3 2020-11-27
16:51:38
41.78 13.6 14 2020-11-27
17:02:51
Sala Sismica INGV-Roma 85053361
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-11-27 16:51:38 ± 0.04
Latitude 41.78 ± 0.00
Longitude 13.60 ± 0.00
Depth (km) 14 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 85053361

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 199
Semi-minor axis of confidence ellipse (meter) 147
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 358
Circular confidence region, given by single value of horizontal uncertainty (meter) 200
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 75
Number of associated phases, regardless of their use for origin computation 33
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.08
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.36512
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 8
Magnitude information

ML:1.3

Field Value
Value 1.3
Uncertainty 0.2
Num. used stations 10
Type of magnitude ML
Reference to an origin 85053361
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-11-27 17:02:51
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.HCRL.HHZ. 2020-11-27T16:52:38.35 3.0 negative manual Pn -3.43 0
MN.VAE.HHZ. 2020-11-27T16:52:30.05 3.0 negative manual Pn -6.43 0
XK.GIZZ.HHZ. 2020-11-27T16:52:29.65 3.0 positive manual Pn 1.19 0
IV.IST3.HHZ. 2020-11-27T16:52:25.05 3.0 positive manual Pn 0.57 0
IV.MRVN.HHZ. 2020-11-27T16:52:12.00 3.0 undecidable manual Pn 3.92 0
IV.CERA.HHZ. 2020-11-27T16:51:51.88 0.3 undecidable manual S 120 0.3651 96 -0.07 71
IV.GIUL.HHZ. 2020-11-27T16:51:51.24 0.3 undecidable manual S 229 0.339 97 0.05 71
IV.INTR.HHZ. 2020-11-27T16:51:50.79 0.6 undecidable manual S 45 0.3247 97 0.03 48
IV.MILN.HNZ. 2020-11-27T16:51:50.23 3.0 undecidable manual Sn -0.52 0
IV.PTQR.HHZ. 2020-11-27T16:51:49.58 0.6 undecidable manual S 329 0.2806 99 0.11 48
IV.GUAR.HHZ. 2020-11-27T16:51:47.38 0.3 undecidable manual S 273 0.2122 105 -0.1 72
IV.CERA.HHZ. 2020-11-27T16:51:46.29 0.3 undecidable manual P 120 0.3651 96 -0.04 71
IV.INTR.HHZ. 2020-11-27T16:51:45.57 0.1 undecidable manual P 45 0.3247 97 -0.07 95
IV.GIUL.HHZ. 2020-11-27T16:51:45.84 0.1 undecidable manual P 229 0.339 97 -0.05 95
IV.LRP.EHZ. 2020-11-27T16:51:45.24 0.6 undecidable manual S 183 0.1349 120 -0.12 49
IV.VVLD.HHZ. 2020-11-27T16:51:44.17 0.6 undecidable manual S 13 0.0899 135 -0.13 49
IV.POFI.HHZ. 2020-11-27T16:51:44.70 0.3 undecidable manual S 127 0.1079 129 0.01 75
IV.PTQR.HHZ. 2020-11-27T16:51:44.85 0.1 undecidable manual P 329 0.2806 99 -0.04 96
IV.GUAR.HHZ. 2020-11-27T16:51:43.79 0.1 undecidable manual P 273 0.2122 105 0.05 98
IV.POFI.HHZ. 2020-11-27T16:51:42.15 0.1 undecidable manual P 127 0.1079 129 0.01 100
IV.LRP.EHZ. 2020-11-27T16:51:42.63 0.1 undecidable manual P 183 0.1349 120 0.11 98
IV.VVLD.HHZ. 2020-11-27T16:51:42.03 0.1 negative manual P 13 0.0899 135 0.12 98
IV.SAP2.EHZ. 2020-11-27T16:51:27.71 3.0 undecidable manual Pn -1.26 0
IV.MSSA.HHZ. 2020-11-27T16:51:21.40 3.0 undecidable manual S -5.39 0
IV.SARZ.HHZ. 2020-11-27T16:51:19.96 3.0 negative manual P -1.4 0
IV.ATCC.EHZ. 2020-11-27T16:51:18.87 3.0 negative manual P -2.75 0
IV.MPAG.EHZ. 2020-11-27T16:51:17.71 3.0 negative manual P -2.77 0
IV.NARO.HHZ. 2020-11-27T16:51:17.91 3.0 undecidable manual P -0.9 0
IV.ATFO.HHZ. 2020-11-27T16:51:16.86 3.0 positive manual P -3.01 0
IV.FRON.EHZ. 2020-11-27T16:51:16.20 3.0 negative manual P -4.36 0
IV.MCIV.CHZ. 2020-11-27T16:51:14.37 3.0 negative manual P -4.19 0
IT.FIE.HGZ. 2020-11-27T16:51:08.42 3.0 undecidable manual S -1.32 0
IV.FIR.HHZ. 2020-11-27T16:51:06.97 3.0 undecidable manual S -2.27 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIR.HNE. ML:3.4 0.000332 1.02 AML other m 2020-11-27T16:51:07.81
IV.FIR.HHE. ML:3.4 0.000315 0.34 AML other m 2020-11-27T16:51:11.00
IV.FIR.HNN. ML:3.5 0.0003735 1.2 AML other m 2020-11-27T16:51:14.23
IV.FIR.HHN. ML:3.4 0.0003175 0.58 AML other m 2020-11-27T16:51:15.89
IV.ATFO.HHN. ML:2 2.8335E-5 0.78 AML other m 2020-11-27T16:51:39.54
IV.ATFO.HHE. ML:2 3.203E-5 0.92 AML other m 2020-11-27T16:51:40.62
IV.VVLD.HHN. ML:1.6 0.000438 0.16 AML other m 2020-11-27T16:51:44.42
IV.VVLD.HHE. ML:1.3 0.0002105 0.2 AML other m 2020-11-27T16:51:44.70
IV.POFI.HHN. ML:0.9 7.05E-5 0.34 AML other m 2020-11-27T16:51:45.66
IV.POFI.HHE. ML:0.9 7.945E-5 0.26 AML other m 2020-11-27T16:51:45.67
IV.LRP.EHN. ML:1.3 0.0001575 0.16 AML other m 2020-11-27T16:51:45.80
IV.LRP.EHE. ML:1.6 0.0003175 1.7 AML other m 2020-11-27T16:51:46.06
IV.PTQR.HHE. ML:1.4 9.81E-5 0.32 AML other m 2020-11-27T16:51:49.83
IV.PTQR.HHN. ML:1 3.775E-5 1.78 AML other m 2020-11-27T16:51:51.97
IV.INTR.HHE. ML:1.1 4.745E-5 0.88 AML other m 2020-11-27T16:51:51.08
IV.CERA.HHN. ML:1.2 4.925E-5 0.2 AML other m 2020-11-27T16:51:53.18
IV.INTR.HHN. ML:1.2 5.965E-5 0.62 AML other m 2020-11-27T16:51:54.68
IV.CERA.HHE. ML:1.1 3.815E-5 0.96 AML other m 2020-11-27T16:51:54.50
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