Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.7 on date 28-05-2021 and time 02:34:41 (Italy) in region 5 km NW Magliano de' Marsi (AQ)

A magnitude ML 1.7 earthquake occured in region: 5 km NW Magliano de' Marsi (AQ), on

  • 28-05-2021 00:34:41 (UTC)
  • 28-05-2021 02:34:41 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.1300, 13.3320 at 9 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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.

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Municipalities within 20 km from the epicenter

Distances are determinated based on the geographic coordintes of the (Istat).
Municipality Region Dist Inh Cum Inh
Magliano de' Marsi AQ 5 3690 3690
Massa d'Albe AQ 6 1476 5166
Scurcola Marsicana AQ 7 2824 7990
Tagliacozzo AQ 9 6889 14879
Borgorose RI 11 4591 19470
Sante Marie AQ 11 1166 20636
Avezzano AQ 14 42515 63151
Cappadocia AQ 14 528 63679
Ovindoli AQ 15 1227 64906
Castellafiume AQ 16 1106 66012
Pescorocchiano RI 17 2075 68087
Rocca di Cambio AQ 18 533 68620
Rocca di Mezzo AQ 18 1526 70146
Lucoli AQ 18 1011 71157
Tornimparte AQ 18 3187 74344
Celano AQ 19 11017 85361
Capistrello AQ 19 5252 90613

Municipalities with at least 50000 inhabitants

An earthquake occurred to
25 Km S of L'Aquila (69753 inhabitants)
48 Km E of Tivoli (56533 inhabitants)
52 Km E of Guidonia Montecelio (88673 inhabitants)
66 Km SW of Teramo (54892 inhabitants)
67 Km NE of Velletri (53303 inhabitants)
73 Km W of Chieti (51815 inhabitants)
74 Km SE of Terni (111501 inhabitants)
75 Km E of Roma (2864731 inhabitants)
80 Km SW of Montesilvano (53738 inhabitants)
82 Km W of Pescara (121014 inhabitants)
82 Km NE of Latina (125985 inhabitants)
82 Km NE of Aprilia (73446 inhabitants)
86 Km NE of Pomezia (62966 inhabitants)
96 Km NE of Anzio (54211 inhabitants)
99 Km E of Fiumicino (78395 inhabitants)
Recent and historical seismicity
Seismic hazard
Shakemap
Felt maps
Locations history
Type Magnitude Date and Time (UTC) Latitude Longitude Depth (km) Published time (UTC) Author Location ID
Bulletin
Rev1000 		ML 1.7 2021-05-28
00:34:41		 42.1305 13.3318 9 2021-12-29
11:12:01		 Bollettino Sismico Italiano INGV 90656991
Reviewed
Rev100 		ML 1.7 2021-05-28
00:34:41		 42.1308 13.3317 9 2021-05-28
00:43:01		 Sala Sismica INGV-Roma 90550111
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-28 00:34:41 ± 0.05
Latitude 42.1305 ± 0.0027
Longitude 13.3318 ± 0.0036
Depth (km) 9 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 90656991

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 261
Semi-minor axis of confidence ellipse (meter) 138
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 105
Circular confidence region, given by single value of horizontal uncertainty (meter) 260.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 50
Number of associated phases, regardless of their use for origin computation 42
Number of defining phases 42
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.21
Epicentral distance of station closest to the epicenter (degree) 0.11961
Epicentral distance of station farthest from the epicenter (degree) 0.63672
Number of stations at which the event was observed 25
Number of stations from which data was used for origin computation 25
Magnitudes information

ML:1.7

Field Value
Value 1.7
Uncertainty 0.2
Num. used stations 30
Type of magnitude ML
Reference to an origin 90550111
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-28 00:43:01

ML:1.7

Field Value
Value 1.7
Uncertainty 0.3
Num. used stations 33
Type of magnitude ML
Reference to an origin 90656991
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2021-05-31 08:39:38
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.POFI.HHZ. 2021-05-28T00:34:59.46 0.6 undecidable manual S 145 55.5 50 0.27 44
IV.VCEL.EHZ. 2021-05-28T00:34:58.45 0.6 undecidable manual S 55 51.0156 50 0.47 43
IV.INTR.HHZ. 2021-05-28T00:34:57.14 0.6 undecidable manual S 105 49.0176 50 -0.3 45
IV.MTCE.HHZ. 2021-05-28T00:34:57.87 0.3 undecidable manual S 256 50.0166 50 0.16 69
IV.CAMP.HHE. 2021-05-28T00:34:56.50 0.6 undecidable manual S 8 45.4212 50 0.01 48
IV.RCAV.EHZ. 2021-05-28T00:34:56.86 0.6 undecidable manual S 226 44.7219 50 0.54 42
IV.RM33.EHZ. 2021-05-28T00:34:55.91 0.6 undecidable manual S 347 43.0236 50 0.05 48
IV.GIGS.HHE. 2021-05-28T00:34:55.35 0.6 undecidable manual S 29 40.9257 50 0.07 48
IV.VVLD.HHZ. 2021-05-28T00:34:54.99 0.3 undecidable manual S 140 37.629 50 0.58 63
IV.GUAR.HHN. 2021-05-28T00:34:54.66 0.6 undecidable manual S 182 37.3293 50 0.33 45
IV.T0110.HHZ. 2021-05-28T00:34:54.89 0.3 undecidable manual S 73 38.1285 50 0.34 68
IV.LPEL.HHZ. 2021-05-28T00:34:53.84 0.6 undecidable manual P 97 70.6737 50 -0.18 44
IV.CERT.HHZ. 2021-05-28T00:34:53.74 0.3 undecidable manual S 235 35.1426 50 -0.02 73
IV.GIUL.HHZ. 2021-05-28T00:34:52.78 0.1 undecidable manual P 186 63.7917 50 -0.17 89
IV.TERO.HNE. 2021-05-28T00:34:52.16 0.6 undecidable manual P 22 58.9965 50 -0.05 46
IV.RMP.HHZ. 2021-05-28T00:34:52.86 0.6 undecidable manual P 236 62.5929 50 0.09 46
IV.T1299.EHE. 2021-05-28T00:34:52.01 0.6 undecidable manual P 356 55.9995 50 0.25 45
IV.LNSS.HNZ. 2021-05-28T00:34:51.65 0.6 undecidable manual P 336 57.5979 50 -0.35 44
IV.LRP.EHZ. 2021-05-28T00:34:51.98 0.3 undecidable manual P 159 57.5979 50 -0.02 70
IV.POFI.HHZ. 2021-05-28T00:34:51.35 0.3 undecidable manual P 145 55.5 50 -0.33 66
IV.FAGN.HHZ. 2021-05-28T00:34:51.12 0.6 undecidable manual S 54 25.5522 109 0.31 47
IV.SMA1.EHE. 2021-05-28T00:34:51.67 0.6 undecidable manual P 0 55.5 50 0 47
IV.VCEL.EHZ. 2021-05-28T00:34:51.52 0.3 undecidable manual P 55 51.0156 50 0.54 63
IV.INTR.HHZ. 2021-05-28T00:34:50.26 0.1 undecidable manual P 105 49.0176 50 -0.41 87
IV.FIAM.HHZ. 2021-05-28T00:34:50.36 0.3 undecidable manual S 311 23.3544 111 0.28 71
IV.MTCE.HHZ. 2021-05-28T00:34:50.62 0.1 undecidable manual P 256 50.0166 50 -0.21 91
MN.AQU.HNZ. 2021-05-28T00:34:50.74 0.6 undecidable manual S 14 25.5522 109 -0.05 49
IV.CAMP.HHE. 2021-05-28T00:34:50.02 0.3 undecidable manual P 8 45.4212 50 -0.1 70
IV.RCAV.EHZ. 2021-05-28T00:34:49.77 0.1 undecidable manual P 226 44.7219 50 -0.25 91
IV.GIGS.HHE. 2021-05-28T00:34:49.18 0.3 undecidable manual P 29 40.9257 50 -0.24 69
IV.RM33.EHZ. 2021-05-28T00:34:49.64 0.1 undecidable manual P 347 43.0236 50 -0.12 94
IT.CSO1.HGZ. 2021-05-28T00:34:49.39 0.6 undecidable manual S 261 20.3685 114 0.27 47
IV.T0110.HHZ. 2021-05-28T00:34:48.94 0.1 undecidable manual P 73 38.1285 50 -0.06 96
IV.CERT.HHZ. 2021-05-28T00:34:48.38 0.1 undecidable manual P 235 35.1426 50 -0.16 94
IV.VVLD.HHZ. 2021-05-28T00:34:48.68 0.1 undecidable manual P 140 37.629 50 -0.24 93
IV.GUAR.HHN. 2021-05-28T00:34:48.75 0.3 undecidable manual P 182 37.3293 50 -0.12 71
IV.FAGN.HHZ. 2021-05-28T00:34:46.79 0.1 undecidable manual P 54 25.5522 109 -0.05 98
IT.CSO1.HGZ. 2021-05-28T00:34:46.16 0.3 undecidable manual P 261 20.3685 114 0.29 71
IV.FIAM.HHZ. 2021-05-28T00:34:46.30 0.1 undecidable manual P 311 23.3544 111 -0.12 97
IV.PTQR.HHZ. 2021-05-28T00:34:46.99 0.3 undecidable manual S 155 13.2756 124 0.02 76
MN.AQU.HNZ. 2021-05-28T00:34:46.72 0.1 undecidable manual P 14 25.5522 109 -0.11 97
IV.PTQR.HHZ. 2021-05-28T00:34:44.69 0.1 undecidable manual P 155 13.2756 124 0.07 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHE. ML:1.8 0.00076572305 0.34 AML other m 2021-05-28T00:34:47.36
IV.PTQR.HHN. ML:1.7 0.00057210485 0.28 AML other m 2021-05-28T00:34:47.46
IV.FIAM.HHN. ML:1.5 0.000184 0.34 AML other m 2021-05-28T00:34:53.26
IV.CERT.HNN. ML:1.9 0.0003501275 0.45 AML other m 2021-05-28T00:34:54.65
IV.CERT.HNE. ML:2.0 0.00040100000000000004 1.62 AML other m 2021-05-28T00:34:54.04
IV.CERT.HHN. ML:2.0 0.000381 0.16 AML other m 2021-05-28T00:34:54.65
IV.FIAM.HHE. ML:1.4 0.00016438219999999999 0.44 AML other m 2021-05-28T00:34:55.39
IV.T0110.HHN. ML:2.1 0.000496 0.56 AML other m 2021-05-28T00:34:57.76
IV.VVLD.HHE. ML:1.7 0.000195 1.46 AML other m 2021-05-28T00:34:58.74
IV.T0110.HHE. ML:2.0 0.00035 0.18 AML other m 2021-05-28T00:34:58.18
IV.RM33.EHN. ML:1.6 0.00011499999999999999 1.14 AML other m 2021-05-28T00:34:58.31
IV.MTCE.HHN. ML:1.6 0.00009429999999999999 0.38 AML other m 2021-05-28T00:34:58.62
IV.RM33.EHE. ML:1.6 0.0001315 0.24 AML other m 2021-05-28T00:34:59.69
IV.MTCE.HHE. ML:1.7 0.0001255 0.86 AML other m 2021-05-28T00:34:59.51
IV.POFI.HHE. ML:1.3 0.000043899999999999996 1.42 AML other m 2021-05-28T00:35:01.28
IV.VVLD.HHN. ML:1.6 0.00015676794999999998 0.28 AML other m 2021-05-28T00:34:55.70
IV.POFI.HHN. ML:1.4 0.0000541 0.64 AML other m 2021-05-28T00:35:01.78
IV.LRP.EHN. ML:0.8 0.00001585 0.38 AML other m 2021-05-28T00:35:01.66
IV.INTR.HHN. ML:1.7 0.00014700000000000002 1.18 AML other m 2021-05-28T00:35:01.40
IV.INTR.HHE. ML:1.5 0.00008434999999999999 0.48 AML other m 2021-05-28T00:35:02.24
IV.LRP.EHE. ML:1.6 0.0000853 0.68 AML other m 2021-05-28T00:35:02.84
IV.GIUL.HHN. ML:1.4 0.000042550000000000004 1.58 AML other m 2021-05-28T00:35:04.09
IV.RMP.HHE. ML:2.2 0.00031800000000000003 1.18 AML other m 2021-05-28T00:35:04.15
IV.VCEL.EHN. ML:1.9 0.0001905 0.64 AML other m 2021-05-28T00:35:04.89
IV.VCEL.EHE. ML:2.0 0.00022799999999999999 0.28 AML other m 2021-05-28T00:35:04.80
IV.RMP.HHN. ML:2.3 0.000409 0.46 AML other m 2021-05-28T00:35:05.52
IV.GIUL.HHE. ML:1.3 0.0000343 1.46 AML other m 2021-05-28T00:35:05.86
IV.LPEL.HHE. ML:1.8 0.0001049 0.26 AML other m 2021-05-28T00:35:06.68
IV.LPEL.HHN. ML:1.7 0.00007494999999999999 0.74 AML other m 2021-05-28T00:35:07.50
IV.MOMA.HHE. ML:1.6 0.000037900000000000006 0.3 AML other m 2021-05-28T00:35:19.28
IV.MOMA.HHN. ML:1.5 0.000031100000000000004 1 AML other m 2021-05-28T00:35:20.64
IV.FIAM.HNN. ML:1.7 0.0003398609 0.33 AML other m 2021-05-28T00:34:53.26
IV.VVLD.HNE. ML:1.8 0.00023871955 0.54 AML other m 2021-05-28T00:34:58.01
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
QuakeML - small Event, Origin, FocalMechanism Download
QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download