Earthquake with magnitude of ML 1.0 on date 22-05-2020 and time 12:49:21 (Italy) in region 7 km N Santo Stefano di Sessanio (AQ)

A magnitude ML 1.0 earthquake occured in region: 7 km N Santo Stefano di Sessanio (AQ), on

  • 22-05-2020 10:49:21 (UTC)
  • 22-05-2020 12:49:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4, 13.66 at 16 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
Santo Stefano di Sessanio AQ 7 111 111
Castel del Monte AQ 7 413 524
Calascio AQ 9 137 661
Barisciano AQ 10 1828 2489
Castelvecchio Calvisio AQ 10 153 2642
Castelli TE 11 1159 3801
Ofena AQ 11 506 4307
Carapelle Calvisio AQ 11 87 4394
Isola del Gran Sasso d'Italia TE 11 4773 9167
Villa Santa Lucia degli Abruzzi AQ 12 123 9290
San Pio delle Camere AQ 13 661 9951
Poggio Picenze AQ 13 1136 11087
Farindola PE 14 1518 12605
Prata d'Ansidonia AQ 14 496 13101
San Demetrio ne' Vestini AQ 15 1854 14955
Arsita TE 15 829 15784
Colledara TE 16 2179 17963
Villa Celiera PE 16 681 18644
Tossicia TE 16 1406 20050
Pietracamela TE 16 271 20321
Caporciano AQ 17 230 20551
Castel Castagna TE 17 500 21051
Sant'Eusanio Forconese AQ 17 394 21445
Capestrano AQ 17 884 22329
Montebello di Bertona PE 17 991 23320
Fagnano Alto AQ 18 418 23738
Villa Sant'Angelo AQ 18 424 24162
Carpineto della Nora PE 18 662 24824
Bisenti TE 19 1952 26776
Fossa AQ 19 721 27497
Brittoli PE 19 290 27787
Navelli AQ 19 554 28341
Civitella Casanova PE 19 1815 30156
Fontecchio AQ 19 369 30525
Fano Adriano TE 20 296 30821

Municipalities with at least 50000 inhabitants

An earthquake occurred to
22 Km E of L'Aquila (69753 inhabitants)
29 Km S of Teramo (54892 inhabitants)
42 Km W of Montesilvano (53738 inhabitants)
42 Km W of Chieti (51815 inhabitants)
46 Km W of Pescara (121014 inhabitants)
85 Km E of Terni (111501 inhabitants)
86 Km NE of Tivoli (56533 inhabitants)
89 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
Reviewed
Rev100
ML 1.0 2020-05-22
10:49:21
42.4 13.66 16 2020-05-22
10:57:17
Sala Sismica INGV-Roma 79444651
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-22 10:49:21 ± 0.29
Latitude 42.40 ± 0.01
Longitude 13.66 ± 0.01
Depth (km) 16 ± 3 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79444651

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1034
Semi-minor axis of confidence ellipse (meter) 355
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 61
Circular confidence region, given by single value of horizontal uncertainty (meter) 1030
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 104
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 14
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.29
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.23113
Number of stations at which the event was observed 31
Number of stations from which data was used for origin computation 7
Magnitude information

ML:1

Field Value
Value 1
Uncertainty 0.3
Num. used stations 9
Type of magnitude ML
Reference to an origin 79444651
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-22 10:57:17
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
IV.ZONE.HHZ. 2020-05-22T10:51:15.20 3.0 undecidable manual Sn 0.67 0
IV.AGLI.HHZ. 2020-05-22T10:51:15.36 3.0 undecidable manual Sg 20.25 0
IV.SARZ.HHZ. 2020-05-22T10:51:13.58 3.0 undecidable manual Sn -1.14 0
IV.BOB.HHZ. 2020-05-22T10:51:08.69 3.0 undecidable manual Sn 2.92 0
IV.CET2.HHZ. 2020-05-22T10:50:59.03 3.0 undecidable manual Sg 17.77 0
GU.GSCL.HHZ. 2020-05-22T10:50:49.91 3.0 undecidable manual Sg 6.07 0
IV.ZCCA.HHZ. 2020-05-22T10:50:47.42 3.0 undecidable manual Sg 8.38 0
AC.KBN.HHZ. 2020-05-22T10:50:45.29 3.0 positive manual Pn 8.12 0
CH.FUORN.HHZ. 2020-05-22T10:50:41.71 3.0 undecidable manual Pg 9.14 0
IV.CAVE.HHZ. 2020-05-22T10:50:40.12 3.0 undecidable manual Sn -7.74 0
MN.CLTB.HHZ. 2020-05-22T10:50:33.93 3.0 undecidable manual Pg 7.79 0
CR.ZAG.BHZ. 2020-05-22T10:50:30.78 3.0 undecidable manual Pg 14.39 0
IV.SARZ.HHZ. 2020-05-22T10:50:28.26 3.0 negative manual Pn 4.43 0
IV.PETRA.HHZ. 2020-05-22T10:50:27.47 3.0 negative manual Pn 5.14 0
IV.EPOZ.HNZ. 2020-05-22T10:50:23.89 3.0 undecidable manual Pn -2.16 0
TV.SF01.EHZ. 2020-05-22T10:50:10.93 3.0 undecidable manual Sg 1.46 0
IV.MCIV.CHZ. 2020-05-22T10:50:09.04 3.0 undecidable manual Sg 1.76 0
IV.CET2.HHZ. 2020-05-22T10:50:08.53 3.0 negative manual Pn 3.5 0
IV.PAOL.HHZ. 2020-05-22T10:49:57.67 3.0 undecidable manual Sn 0.91 0
IV.CMPR.HHZ. 2020-05-22T10:49:50.26 3.0 undecidable manual Pn -2 0
IX.STN3.HHZ.02 2020-05-22T10:49:48.94 3.0 negative manual Pn -2.94 0
IV.MAON.HHZ. 2020-05-22T10:49:48.36 3.0 undecidable manual Pn -2.02 0
IV.ARVD.HHZ. 2020-05-22T10:49:45.10 3.0 undecidable manual Pg 2.65 0
IV.VIVA.HHZ. 2020-05-22T10:49:45.10 3.0 undecidable manual Sn -2.99 0
IV.APEC.HHZ. 2020-05-22T10:49:43.68 3.0 undecidable manual Pn -2.33 0
IV.GUAR.HHZ. 2020-05-22T10:49:30.63 3.0 undecidable manual Pg 0.29 0
MN.AQU.HHZ. 2020-05-22T10:49:30.14 0.6 undecidable manual S 256 0.1961 114 0.34 47
IV.TERO.HHZ. 2020-05-22T10:49:30.44 0.6 undecidable manual S 349 0.2266 110 -0.18 49
IV.CAMP.HHZ. 2020-05-22T10:49:30.51 0.6 undecidable manual S 306 0.2311 109 -0.24 48
IV.T0110.HHZ. 2020-05-22T10:49:29.69 0.6 undecidable manual S 154 0.1907 115 0.05 51
IV.VCEL.EHZ. 2020-05-22T10:49:28.42 0.6 undecidable manual S 93 0.1313 128 0.28 49
IV.FAGN.HHZ. 2020-05-22T10:49:28.50 0.6 undecidable manual S 203 0.1466 124 -0.02 51
IV.CAMP.HHZ. 2020-05-22T10:49:27.57 0.1 undecidable manual P 306 0.2311 109 0.85 79
IV.GIGS.HHN. 2020-05-22T10:49:27.03 0.6 undecidable manual S 308 0.0845 143 -0.15 51
IV.TERO.HHZ. 2020-05-22T10:49:26.39 0.6 undecidable manual P 349 0.2266 110 -0.26 48
IV.VCEL.EHZ. 2020-05-22T10:49:25.24 0.3 positive manual P 93 0.1313 128 0.02 77
IV.FAGN.HHZ. 2020-05-22T10:49:25.37 0.3 positive manual P 203 0.1466 124 -0.07 76
IV.T0110.HHZ. 2020-05-22T10:49:25.94 0.6 positive manual P 154 0.1907 115 -0.14 49
MN.AQU.HHZ. 2020-05-22T10:49:25.90 0.1 undecidable manual P 256 0.1961 114 -0.27 96
IV.GIGS.HHN. 2020-05-22T10:49:24.47 0.1 undecidable manual P 308 0.0845 143 -0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.VCEL.EHE. ML:0.8 5.3761635E-5 0.1792 AML other m 2020-05-22T10:49:28.61
IV.VCEL.EHN. ML:0.9 6.415692E-5 0.1984 AML other m 2020-05-22T10:49:28.50
IV.FAGN.HHE. ML:1.2 0.00012388 0.2816 AML other m 2020-05-22T10:49:32.38
IV.FAGN.HHN. ML:1.4 0.00017640435 0.2752 AML other m 2020-05-22T10:49:29.30
IV.T0110.HHE. ML:1 6.108595E-5 0.2816 AML other m 2020-05-22T10:49:30.05
IV.T0110.HHN. ML:1.2 0.00010161163 0.384 AML other m 2020-05-22T10:49:29.96
IV.TERO.HHE. ML:0.6 2.2008495E-5 0.096 AML other m 2020-05-22T10:49:31.33
IV.TERO.HHN. ML:0.7 2.556629E-5 0.1408 AML other m 2020-05-22T10:49:31.33
IV.GUAR.HHE. ML:1.2 2.2847745E-5 0.0576 AML other m 2020-05-22T10:49:35.13
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