Earthquake with magnitude of ML 1.1 on date 13-01-2020 and time 03:37:32 (Italy) in region 4 km SE Balsorano (AQ)

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

  • 13-01-2020 02:37:32 (UTC)
  • 13-01-2020 03:37:32 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 41.78, 13.6 at 15 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 9 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
Vicalvi FR 15 783 58627
Arpino FR 15 7262 65889
Morino AQ 15 1448 67337
Alvito FR 16 2713 70050
Pescasseroli AQ 16 2203 72253
Civita d'Antino AQ 16 979 73232
Monte San Giovanni Campano FR 17 12929 86161
Veroli FR 18 20560 106721
Lecce nei Marsi AQ 18 1702 108423
Boville Ernica FR 19 8737 117160
Opi AQ 19 420 117580
Casalvieri FR 19 2698 120278
Fontana Liri FR 19 2953 123231
San Donato Val di Comino FR 19 2107 125338
Collepardo FR 20 968 126306
Ortucchio AQ 20 1860 128166
Santopadre FR 20 1357 129523

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km S of L'Aquila (69753 inhabitants)
68 Km NE of Latina (125985 inhabitants)
69 Km E of Velletri (53303 inhabitants)
70 Km E of Tivoli (56533 inhabitants)
76 Km E of Guidonia Montecelio (88673 inhabitants)
79 Km SW of Chieti (51815 inhabitants)
82 Km E of Aprilia (73446 inhabitants)
89 Km E of Anzio (54211 inhabitants)
91 Km SW of Pescara (121014 inhabitants)
92 Km E of Pomezia (62966 inhabitants)
93 Km SW of Montesilvano (53738 inhabitants)
93 Km E of Roma (2864731 inhabitants)
98 Km S of Teramo (54892 inhabitants)
99 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
Rev 100 ML 1.1 2020-01-13
02:37:32
41.78 13.6 15 2020-01-13
02:42:33
Sala Sismica INGV-Roma 75505341
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-01-13 02:37:32 ± 0.06
Latitude 41.78 ± 0.00
Longitude 13.60 ± 0.00
Depth (km) 15 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 75505341

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 269
Semi-minor axis of confidence ellipse (meter) 164
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 320
Circular confidence region, given by single value of horizontal uncertainty (meter) 270
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 101
Number of associated phases, regardless of their use for origin computation 12
Number of defining phases 12
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.1
Epicentral distance of station closest to the epicenter (degree) 0.08903
Epicentral distance of station farthest from the epicenter (degree) 0.34174
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 6
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.2
Num. used stations 8
Type of magnitude ML
Reference to an origin 75505341
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-01-13 02:42:33
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.INTR.HHZ. 2020-01-13T02:37:44.18 0.1 undecidable manual S 44 0.322 99 0.1 95
IV.GIUL.HHZ. 2020-01-13T02:37:44.85 0.3 undecidable manual S 229 0.3417 98 0.17 70
IV.PTQR.HHZ. 2020-01-13T02:37:43.06 0.3 undecidable manual S 328 0.2824 101 0.12 71
IV.GUAR.HHZ. 2020-01-13T02:37:40.92 0.1 undecidable manual S 273 0.2158 107 -0.1 97
IV.GIUL.HHZ. 2020-01-13T02:37:39.21 0.3 undecidable manual P 229 0.3417 98 -0.12 70
IV.PTQR.HHZ. 2020-01-13T02:37:38.30 0.3 undecidable manual P 328 0.2824 101 -0.02 73
IV.POFI.HHZ. 2020-01-13T02:37:38.12 0.1 undecidable manual S 128 0.1043 132 0.01 100
IV.INTR.HHZ. 2020-01-13T02:37:38.91 0.3 undecidable manual P 44 0.322 99 -0.07 71
IV.GUAR.HHZ. 2020-01-13T02:37:37.20 0.1 undecidable manual P 273 0.2158 107 -0.01 98
IV.VVLD.HHZ. 2020-01-13T02:37:37.61 0.3 undecidable manual S 10 0.089 138 -0.17 73
IV.POFI.HHZ. 2020-01-13T02:37:35.54 0.1 undecidable manual P 128 0.1043 132 0.01 100
IV.VVLD.HHZ. 2020-01-13T02:37:35.41 0.1 undecidable manual P 10 0.089 138 0.06 99
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VVLD.HHE. ML:1.1 0.000132 0.14 AML other m 2020-01-13T02:37:37.96
IV.VVLD.HHN. ML:1.4 0.00023 1.62 AML other m 2020-01-13T02:37:38.84
IV.POFI.HHE. ML:0.8 6.07E-5 1.12 AML other m 2020-01-13T02:37:38.34
IV.GUAR.HHE. ML:0.9 4.02E-5 0.52 AML other m 2020-01-13T02:37:38.79
IV.POFI.HHN. ML:0.7 5.065E-5 0.16 AML other m 2020-01-13T02:37:39.06
IV.GUAR.HHN. ML:1.2 8.95E-5 0.24 AML other m 2020-01-13T02:37:41.13
IV.INTR.HHN. ML:1.3 7.195E-5 1.2 AML other m 2020-01-13T02:37:45.12
IV.INTR.HHE. ML:1.2 6.32E-5 1.56 AML other m 2020-01-13T02:37:47.16
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