Earthquake with magnitude of ML 1.4 on date 23-05-2020 and time 05:01:16 (UTC) in region 4 km SW Avezzano (AQ)

A magnitude ML 1.4 earthquake occured in region: 4 km SW Avezzano (AQ), on

  • 23-05-2020 05:01:16 (UTC)
  • 23-05-2020 07:01:16 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.01, 13.39 at 9 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
Avezzano AQ 4 42515 42515
Capistrello AQ 5 5252 47767
Castellafiume AQ 5 1106 48873
Canistro AQ 7 995 49868
Scurcola Marsicana AQ 8 2824 52692
Luco dei Marsi AQ 8 6079 58771
Cappadocia AQ 9 528 59299
Magliano de' Marsi AQ 10 3690 62989
Civitella Roveto AQ 10 3268 66257
Massa d'Albe AQ 12 1476 67733
Trasacco AQ 13 6246 73979
Tagliacozzo AQ 13 6889 80868
Filettino FR 14 565 81433
Civita d'Antino AQ 15 979 82412
Celano AQ 16 11017 93429
Vallepietra RM 16 283 93712
Morino AQ 17 1448 95160
Ovindoli AQ 18 1227 96387
Cerchio AQ 18 1635 98022
Aielli AQ 18 1475 99497
San Benedetto dei Marsi AQ 19 3909 103406
Sante Marie AQ 19 1166 104572
Trevi nel Lazio FR 20 1822 106394

Municipalities with at least 50000 inhabitants

An earthquake occurred to
38 Km S of L'Aquila (69753 inhabitants)
49 Km E of Tivoli (56533 inhabitants)
55 Km E of Guidonia Montecelio (88673 inhabitants)
62 Km NE of Velletri (53303 inhabitants)
72 Km NE of Latina (125985 inhabitants)
75 Km SW of Chieti (51815 inhabitants)
76 Km E of Roma (2864731 inhabitants)
77 Km NE of Aprilia (73446 inhabitants)
77 Km SW of Teramo (54892 inhabitants)
83 Km E of Pomezia (62966 inhabitants)
84 Km SW of Montesilvano (53738 inhabitants)
85 Km SW of Pescara (121014 inhabitants)
87 Km SE of Terni (111501 inhabitants)
89 Km NE of Anzio (54211 inhabitants)
99 Km E of Fiumicino (78395 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 1.4 2020-05-23
05:01:16
42.01 13.39 9 2020-05-23
05:10:22
Sala Sismica INGV-Roma 79469881
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-23 05:01:16 ± 0.13
Latitude 42.01 ± 0.01
Longitude 13.39 ± 0.01
Depth (km) 9 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 79469881

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 557
Semi-minor axis of confidence ellipse (meter) 425
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 268
Circular confidence region, given by single value of horizontal uncertainty (meter) 560
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 63
Number of associated phases, regardless of their use for origin computation 40
Number of defining phases 21
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.27
Epicentral distance of station closest to the epicenter (degree) 0
Epicentral distance of station farthest from the epicenter (degree) 0.51891
Number of stations at which the event was observed 27
Number of stations from which data was used for origin computation 11
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.2
Num. used stations 16
Type of magnitude ML
Reference to an origin 79469881
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-23 05:10:22
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
GU.ROTM.HHZ. 2020-05-23T05:03:06.53 3.0 undecidable manual Sn -0.95 0
IV.LPDG.HHZ. 2020-05-23T05:03:02.21 3.0 positive manual Pg 20.549999 0
XK.GIZZ.HHZ. 2020-05-23T05:02:45.93 3.0 undecidable manual Sn -4.45 0
GU.ROTM.HHZ. 2020-05-23T05:02:30.81 3.0 undecidable manual Pg 14.45 0
IV.BRSN.EHZ. 2020-05-23T05:02:28.73 3.0 undecidable manual Sg 9.95 0
ST.RONC.EHZ. 2020-05-23T05:02:25.00 3.0 negative manual Pg 9.31 0
XK.GIZZ.HHZ. 2020-05-23T05:02:17.67 3.0 undecidable manual Pg 10.92 0
IV.PZUN.HHZ. 2020-05-23T05:02:17.65 3.0 undecidable manual Sn -0.13 0
IV.SARZ.HHZ. 2020-05-23T05:02:16.83 3.0 positive manual Pn 4.38 0
OT.OT05.EHZ. 2020-05-23T05:02:12.09 3.0 undecidable manual Sg 6.05 0
IV.ERC.EHZ. 2020-05-23T05:02:08.04 3.0 undecidable manual Pn 0.81 0
IV.MNTV.HNZ. 2020-05-23T05:02:03.60 3.0 negative manual Pn -1.07 0
IV.FIR.HHZ. 2020-05-23T05:01:49.25 3.0 positive manual Pg 3.23 0
OT.OT13.EHZ. 2020-05-23T05:01:45.56 3.0 positive manual Pn -2.01 0
OT.OT05.EHZ. 2020-05-23T05:01:42.32 3.0 negative manual Pn 0.48 0
IV.RNI2.HHZ. 2020-05-23T05:01:40.80 3.0 undecidable manual S 1.16 0
IV.ROSPO.HHZ. 2020-05-23T05:01:39.69 3.0 positive manual Pg 4.34 0
IV.NARO.HHZ. 2020-05-23T05:01:38.85 3.0 positive manual Pn -0.05 0
IV.GIUL.HHZ. 2020-05-23T05:01:33.66 0.6 undecidable manual S 193 0.4596 50 0.48 58
IV.LRP.EHZ. 2020-05-23T05:01:31.19 0.6 undecidable manual S 158 0.3867 50 0.17 63
IV.INTR.HHZ. 2020-05-23T05:01:31.37 0.6 undecidable manual S 89 0.3795 50 0.57 57
IV.T0110.HHZ. 2020-05-23T05:01:30.25 0.3 undecidable manual S 52 0.3606 50 0.01 98
IV.POFI.HHZ. 2020-05-23T05:01:30.25 0.6 undecidable manual S 141 0.3741 50 -0.38 61
IV.FIAM.HHZ. 2020-05-23T05:01:29.57 0.6 undecidable manual S 322 0.3318 50 0.18 64
IV.CERT.HHZ. 2020-05-23T05:01:28.52 0.6 undecidable manual S 259 0.3112 50 -0.26 63
IV.LPEL.HHZ. 2020-05-23T05:01:28.53 3.0 positive manual P 1.18 0
IV.FAGN.HHZ. 2020-05-23T05:01:28.39 0.6 undecidable manual S 28 0.295 50 0.1 65
IV.RM33.EHZ. 2020-05-23T05:01:28.21 0.3 undecidable manual P 345 0.5189 50 1.02 69
IV.GIUL.HHZ. 2020-05-23T05:01:26.11 0.6 undecidable manual P 193 0.4596 50 -0.06 64
IV.VVLD.HHZ. 2020-05-23T05:01:25.62 0.3 undecidable manual S 129 0.2185 110 0.06 100
IV.GUAR.HHZ. 2020-05-23T05:01:25.71 0.3 undecidable manual S 196 0.2203 110 0.09 99
IV.INTR.HHZ. 2020-05-23T05:01:24.61 0.3 positive manual P 89 0.3795 50 -0.19 94
IV.POFI.HHZ. 2020-05-23T05:01:24.36 0.6 undecidable manual P 141 0.3741 50 -0.34 61
IV.LRP.EHZ. 2020-05-23T05:01:24.92 0.6 undecidable manual P 158 0.3867 50 0 65
IV.T0110.HHZ. 2020-05-23T05:01:24.06 0.6 undecidable manual P 52 0.3606 50 -0.41 60
IV.FAGN.HHZ. 2020-05-23T05:01:23.09 0.3 undecidable manual P 28 0.295 50 -0.26 95
IV.CERT.HHZ. 2020-05-23T05:01:23.33 0.3 undecidable manual P 259 0.3112 50 -0.3 93
IV.FIAM.HHZ. 2020-05-23T05:01:23.64 0.6 undecidable manual P 322 0.3318 50 -0.34 61
IV.VVLD.HHZ. 2020-05-23T05:01:21.65 0.3 positive manual P 129 0.2185 110 -0.12 99
IV.GUAR.HHZ. 2020-05-23T05:01:21.97 0.3 undecidable manual P 196 0.2203 110 0.17 98
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.GUAR.HHE. ML:1.6 0.000262 0.12 AML other m 2020-05-23T05:01:26.23
IV.GUAR.HHN. ML:1.6 0.0002695 0.6 AML other m 2020-05-23T05:01:26.52
IV.VVLD.HHE. ML:1.1 7.575E-5 0.78 AML other m 2020-05-23T05:01:27.40
IV.VVLD.HHN. ML:1.2 0.0001095 0.28 AML other m 2020-05-23T05:01:27.35
IV.FAGN.HHN. ML:0 0.000164 0.38 AML other m 2020-05-23T05:01:29.96
IV.CERT.HHE. ML:1.2 6.965E-5 0.62 AML other m 2020-05-23T05:01:30.66
IV.T0110.HHE. ML:1.5 0.00011555 0.24 AML other m 2020-05-23T05:01:31.05
IV.CERT.HHN. ML:1 3.775E-5 0.18 AML other m 2020-05-23T05:01:31.26
IV.INTR.HHN. ML:1.5 0.0001018 0.38 AML other m 2020-05-23T05:01:31.66
IV.POFI.HHN. ML:0.8 2.11E-5 0.44 AML other m 2020-05-23T05:01:32.36
IV.FAGN.HHE. ML:0 0.0003175 0.28 AML other m 2020-05-23T05:01:32.28
IV.T0110.HHN. ML:1.6 0.000128 0.34 AML other m 2020-05-23T05:01:32.70
IV.FIAM.HHN. ML:0.7 1.955E-5 0.36 AML other m 2020-05-23T05:01:32.57
IV.LRP.EHE. ML:1.1 4.245E-5 1.3 AML other m 2020-05-23T05:01:32.67
IV.INTR.HHE. ML:1.3 6.265E-5 1.2 AML other m 2020-05-23T05:01:32.34
IV.POFI.HHE. ML:0.8 2.19E-5 1.4 AML other m 2020-05-23T05:01:33.94
IV.FIAM.HHE. ML:0.7 1.855E-5 1.26 AML other m 2020-05-23T05:01:34.83
IV.LRP.EHN. ML:0.5 1.199E-5 0.48 AML other m 2020-05-23T05:01:34.10
IV.GIUL.HHN. ML:1 2.68E-5 0.56 AML other m 2020-05-23T05:01:37.63
IV.GIUL.HHE. ML:1 2.38E-5 1.34 AML other m 2020-05-23T05:01:39.88
IV.RM33.EHN. ML:1.1 2.39E-5 0.44 AML other m 2020-05-23T05:01:41.30
IV.RM33.EHE. ML:1.1 3.065E-5 0.92 AML other m 2020-05-23T05:01:44.59
OT.OT13.EHN. ML:4.9 0.01985 1 AML other m 2020-05-23T05:01:47.39
OT.OT13.EHE. ML:4.6 0.009885 1.44 AML other m 2020-05-23T05:01:48.92
IV.FIR.HNN. ML:3.2 0.000287 0.98 AML other m 2020-05-23T05:01:51.53
IV.FIR.HNE. ML:3.2 0.000279 0.98 AML other m 2020-05-23T05:01:52.79
IV.FIR.HHE. ML:3.2 0.000258 0.66 AML other m 2020-05-23T05:01:52.64
IV.FIR.HHN. ML:3.2 0.000281 0.06 AML other m 2020-05-23T05:01:57.66
IV.MNTV.HNE. ML:4.2 0.000798 0.5 AML other m 2020-05-23T05:02:07.00
IV.MNTV.HNN. ML:4.1 0.0006585 0.32 AML other m 2020-05-23T05:02:32.32
GU.ROTM.HHE. ML:4.2 0.000476 0.06 AML other m 2020-05-23T05:03:18.55
GU.ROTM.HHN. ML:4.2 0.0004725 0.34 AML other m 2020-05-23T05:03:18.60
IV.VVLD.HNE. ML:1.3 0.0001215467 0.48 AML other m 2020-05-23T05:01:28.24
IV.VVLD.HNN. ML:1.3 0.0001264208 2.9024 AML other m 2020-05-23T05:01:25.90
IV.INTR.HNE. ML:1.6 0.00012459895 1.7408 AML other m 2020-05-23T05:01:31.92
IV.INTR.HNN. ML:1.6 0.00014304983 0.4192 AML other m 2020-05-23T05:01:31.66
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