Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.6 on date 28-05-2020 and time 10:46:21 (UTC) in region 2 km NW Cittareale (RI)

A magnitude ML 1.6 earthquake occured in region: 2 km NW Cittareale (RI), on

  • 28-05-2020 10:46:21 (UTC)
  • 28-05-2020 12:46:21 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6280, 13.1420 at 12 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
Cittareale RI 2 482 482
Accumoli RI 12 667 1149
Posta RI 12 694 1843
Amatrice RI 12 2657 4500
Borbona RI 13 617 5117
Montereale AQ 14 2581 7698
Cascia PG 15 3217 10915
Monteleone di Spoleto PG 16 599 11514
Leonessa RI 16 2435 13949
Capitignano AQ 18 665 14614
Norcia PG 19 4957 19571
Poggiodomo PG 19 117 19688
Cagnano Amiterno AQ 20 1369 21057

Municipalities with at least 50000 inhabitants

An earthquake occurred to
37 Km NW of L'Aquila (69753 inhabitants)
41 Km E of Terni (111501 inhabitants)
46 Km W of Teramo (54892 inhabitants)
51 Km SE of Foligno (57155 inhabitants)
78 Km NE of Guidonia Montecelio (88673 inhabitants)
79 Km NE of Tivoli (56533 inhabitants)
81 Km SE of Perugia (166134 inhabitants)
84 Km W of Montesilvano (53738 inhabitants)
88 Km E of Viterbo (67173 inhabitants)
90 Km W of Chieti (51815 inhabitants)
90 Km W of Pescara (121014 inhabitants)
98 Km NE of Roma (2864731 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 1.6 2020-05-28
10:46:21		 42.6278 13.1417 12 2020-11-19
12:36:51		 Bollettino Sismico Italiano INGV 80857301
Reviewed
Rev100 		ML 1.5 2020-05-28
10:46:21		 42.6288 13.1407 12 2020-05-28
10:53:35		 Sala Sismica INGV-Roma 79653381
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-05-28 10:46:21 ± 0.05
Latitude 42.6278 ± 0.0027
Longitude 13.1417 ± 0.0037
Depth (km) 12 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-INGV
Event type earthquake
Origin ID 80857301

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 270
Semi-minor axis of confidence ellipse (meter) 50
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 42
Circular confidence region, given by single value of horizontal uncertainty (meter) 270.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 68
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) 0.07824
Epicentral distance of station farthest from the epicenter (degree) 1.15563
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:1.6

Field Value
Value 1.6
Uncertainty 0.3
Num. used stations 35
Type of magnitude ML
Reference to an origin 80857301
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2020-07-07 10:46:55

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 24
Type of magnitude ML
Reference to an origin 79653381
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-05-28 10:53:35
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CRTC.HHZ. 2020-05-28T10:46:42.22 0.3 undecidable manual P 351 128.2716 90 -0.05 59
IV.MOMA.HHZ. 2020-05-28T10:46:37.20 0.3 undecidable manual S 293 50.5161 91 0.17 68
IV.CSP1.EHZ. 2020-05-28T10:46:37.61 0.3 undecidable manual S 6 51.7038 91 0.26 66
IV.CESI.HHE. 2020-05-28T10:46:36.25 0.6 undecidable manual S 335 46.0206 91 0.41 43
IV.FDMO.HHZ. 2020-05-28T10:46:35.56 0.3 undecidable manual S 354 45.5211 91 -0.14 68
IV.FIAM.HNN. 2020-05-28T10:46:34.23 0.1 undecidable manual S 183 39.9267 91 0.02 95
IV.GIGS.HHN. 2020-05-28T10:46:34.07 0.3 undecidable manual S 119 40.2264 91 -0.21 68
IV.EL6.EHZ. 2020-05-28T10:46:34.77 0.1 undecidable manual P 358 77.8665 90 0.26 84
IV.TERO.HHZ. 2020-05-28T10:46:33.40 0.1 undecidable manual S 91 37.7289 91 -0.22 91
IV.MC2.EHZ. 2020-05-28T10:46:32.21 0.3 undecidable manual S 7 31.6461 92 0.21 69
IV.VCEL.EHZ. 2020-05-28T10:46:32.51 0.1 undecidable manual P 114 62.6928 91 0.34 85
IV.MMO1.EHZ. 2020-05-28T10:46:32.67 0.3 undecidable manual S 27 33.6441 91 0.14 70
IV.T0110.HHZ. 2020-05-28T10:46:32.91 0.6 undecidable manual P 130 68.1762 91 -0.11 44
IV.ASSB.HHZ. 2020-05-28T10:46:32.08 0.3 undecidable manual P 320 60.495 91 0.25 65
IV.ARRO.EHZ. 2020-05-28T10:46:32.24 1.0 undecidable manual S 260 31.1466 92 0.37 22
IV.OFFI.HHZ. 2020-05-28T10:46:31.93 0.3 undecidable manual P 52 55.8996 91 0.81 55
IV.MOMA.HHZ. 2020-05-28T10:46:30.24 0.3 undecidable manual P 293 50.5161 91 -0.05 69
IV.CSP1.EHZ. 2020-05-28T10:46:30.36 0.3 undecidable manual P 6 51.7038 91 -0.12 68
IV.NRCA.HNZ. 2020-05-28T10:46:29.22 0.1 undecidable manual S 354 22.9548 93 -0.45 89
IV.FDMO.HHZ. 2020-05-28T10:46:29.36 0.1 undecidable manual P 354 45.5211 91 -0.16 91
IV.CESI.HHE. 2020-05-28T10:46:29.71 0.3 undecidable manual P 335 46.0206 91 0.11 69
IV.MTRA.EHZ. 2020-05-28T10:46:29.95 0.1 undecidable manual S 55 25.2525 92 -0.33 91
IV.CESX.HHE. 2020-05-28T10:46:29.67 0.6 undecidable manual P 267 45.3213 91 0.18 45
IV.CAMP.HHZ. 2020-05-28T10:46:29.86 0.3 undecidable manual S 115 24.0537 93 -0.12 71
IV.TERO.HHZ. 2020-05-28T10:46:28.11 0.1 undecidable manual P 91 37.7289 91 -0.21 91
IV.FIAM.HNN. 2020-05-28T10:46:28.63 0.1 undecidable manual P 183 39.9267 91 -0.04 94
IV.GIGS.HHN. 2020-05-28T10:46:28.60 0.3 undecidable manual P 119 40.2264 91 -0.1 70
IV.FEMA.HNE. 2020-05-28T10:46:28.03 0.6 undecidable manual P 349 37.8288 91 -0.3 45
IV.ARRO.EHZ. 2020-05-28T10:46:27.05 0.1 undecidable manual P 260 31.1466 92 -0.26 91
IV.MC2.EHZ. 2020-05-28T10:46:27.46 0.1 undecidable manual P 7 31.6461 92 0.07 95
IV.RM33.EHZ. 2020-05-28T10:46:27.45 0.1 undecidable manual S 156 14.4744 104 0.02 99
IV.MMO1.EHZ. 2020-05-28T10:46:27.60 0.3 undecidable manual P 27 33.6441 91 -0.09 71
IV.SMA1.EHZ. 2020-05-28T10:46:27.95 0.3 undecidable manual S 89 15.7731 100 0.18 72
IV.CAMP.HHZ. 2020-05-28T10:46:26.24 0.1 undecidable manual P 115 24.0537 93 0.02 97
IV.T1299.HNN. 2020-05-28T10:46:26.79 0.1 undecidable manual S 86 11.4774 117 0.11 97
IV.MTRA.EHZ. 2020-05-28T10:46:26.18 0.1 undecidable manual P 55 25.2525 92 -0.21 93
IV.SMA1.EHZ. 2020-05-28T10:46:25.16 0.1 undecidable manual P 89 15.7731 100 0.21 95
IV.LNSS.HHZ. 2020-05-28T10:46:25.90 0.3 undecidable manual S 251 8.6802 130 -0.17 73
IV.NRCA.HNZ. 2020-05-28T10:46:25.75 0.1 undecidable manual P 354 22.9548 93 -0.29 92
IV.RM33.EHZ. 2020-05-28T10:46:24.83 0.1 undecidable manual P 156 14.4744 104 0.08 98
IV.T1299.HNN. 2020-05-28T10:46:24.53 0.3 undecidable manual P 86 11.4774 117 0.22 71
IV.LNSS.HHZ. 2020-05-28T10:46:23.97 0.1 undecidable manual P 251 8.6802 130 0.01 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.LNSS.HNE. ML:2.3 0.0026091235 0.16 AML other m 2020-05-28T10:46:26.12
IV.LNSS.HNN. ML:2.1 0.0015361965 0.16 AML other m 2020-05-28T10:46:26.16
IV.LNSS.HHE. ML:2.3 0.0027221644999999997 0.16 AML other m 2020-05-28T10:46:26.04
IV.LNSS.HHN. ML:2.1 0.0017192005 0.16 AML other m 2020-05-28T10:46:26.16
IV.RM33.EHN. ML:1.7 0.00045473350000000003 0.0832 AML other m 2020-05-28T10:46:27.70
IV.RM33.HNN. ML:1.7 0.00046572044999999997 0.0896 AML other m 2020-05-28T10:46:27.70
IV.RM33.EHE. ML:1.6 0.00036204685000000006 0.256 AML other m 2020-05-28T10:46:28.85
IV.RM33.HNE. ML:1.6 0.00035530229999999993 0.1728 AML other m 2020-05-28T10:46:28.12
IV.SMA1.EHN. ML:2.1 0.0011973790000000002 0.2816 AML other m 2020-05-28T10:46:28.37
IV.SMA1.EHE. ML:2.4 0.0021357819999999997 0.3008 AML other m 2020-05-28T10:46:28.35
IV.MTRA.EHE. ML:1.9 0.00047577724999999996 0.2048 AML other m 2020-05-28T10:46:30.78
IV.MTRA.HNE. ML:1.9 0.00044985505000000005 0.1472 AML other m 2020-05-28T10:46:30.68
IV.MTRA.HNN. ML:1.6 0.0002487241 0.32 AML other m 2020-05-28T10:46:31.31
IV.MTRA.EHN. ML:1.7 0.0002646887 0.32 AML other m 2020-05-28T10:46:31.32
IV.CAMP.HHE. ML:1.1 0.00006764202 0.2816 AML other m 2020-05-28T10:46:30.39
IV.CAMP.HHN. ML:0.9 0.000047603390000000005 0.416 AML other m 2020-05-28T10:46:30.37
IV.ARRO.EHN. ML:1.4 0.00011252255 0.1792 AML other m 2020-05-28T10:46:34.31
IV.ARRO.EHE. ML:1.5 0.0001429472 0.1984 AML other m 2020-05-28T10:46:34.61
IV.TERO.HHN. ML:1.5 0.00011861565 0.064 AML other m 2020-05-28T10:46:34.36
IV.TERO.HHE. ML:1.4 0.00009332934000000001 0.1024 AML other m 2020-05-28T10:46:36.02
IV.TERO.HNE. ML:1.5 0.00011618960000000001 0.1344 AML other m 2020-05-28T10:46:33.90
IV.FDMO.HHN. ML:1.4 0.000066249905 0.1984 AML other m 2020-05-28T10:46:36.39
IV.FDMO.HHE. ML:1.4 0.00006346771000000002 0.2368 AML other m 2020-05-28T10:46:37.20
IV.MOMA.HHN. ML:1.6 0.00008971298 0.16 AML other m 2020-05-28T10:46:38.89
IV.MOMA.HHE. ML:1.5 0.000076057365 0.16 AML other m 2020-05-28T10:46:39.08
IV.CSP1.EHN. ML:1.4 0.00006386748000000001 0.3776 AML other m 2020-05-28T10:46:38.83
IV.CSP1.EHE. ML:1.4 0.00006931068 0.1792 AML other m 2020-05-28T10:46:39.49
IV.OFFI.HHE. ML:1.6 0.0000929719 0.3968 AML other m 2020-05-28T10:46:42.56
IV.ASSB.HHN. ML:1.1 0.00002658715 0.1856 AML other m 2020-05-28T10:46:41.71
IV.ASSB.HHE. ML:1.2 0.000028639825 0.0832 AML other m 2020-05-28T10:46:41.65
IV.VCEL.EHE. ML:1.4 0.000052213395000000004 0.32 AML other m 2020-05-28T10:46:47.80
IV.VCEL.EHN. ML:1.6 0.000076596415 0.2624 AML other m 2020-05-28T10:46:44.52
IV.EL6.EHE. ML:1.3 0.000030841344 0.1856 AML other m 2020-05-28T10:46:46.26
IV.EL6.EHN. ML:1.5 0.000047129710000000005 0.2624 AML other m 2020-05-28T10:46:48.23
IV.CRTC.HHE. ML:2.1 0.00008625659999999998 0.0576 AML other m 2020-05-28T10:46:48.10
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