Istituto Nazionale di Geofisica e Vulcanologia

Earthquake with magnitude of ML 1.1 on date 28-03-2020 and time 21:59:40 (Italy) in region 2 km NE Massa d'Albe (AQ)

A magnitude ML 1.1 earthquake occured in region: 2 km NE Massa d'Albe (AQ), on

  • 28-03-2020 20:59:40 (UTC)
  • 28-03-2020 21:59:40 (UTC +01:00) Italian time

and geographic coordinates (lat, lon) 42.1190, 13.4090 at 10 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.

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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
Massa d'Albe AQ 2 1476 1476
Magliano de' Marsi AQ 5 3690 5166
Scurcola Marsicana AQ 8 2824 7990
Ovindoli AQ 9 1227 9217
Avezzano AQ 10 42515 51732
Celano AQ 12 11017 62749
Rocca di Mezzo AQ 14 1526 64275
Tagliacozzo AQ 14 6889 71164
Rocca di Cambio AQ 15 533 71697
Aielli AQ 16 1475 73172
Castellafiume AQ 16 1106 74278
Cappadocia AQ 16 528 74806
Borgorose RI 17 4591 79397
Capistrello AQ 17 5252 84649
Cerchio AQ 17 1635 86284
Sante Marie AQ 17 1166 87450
Luco dei Marsi AQ 18 6079 93529
Collarmele AQ 19 894 94423
Ocre AQ 19 1167 95590
Canistro AQ 20 995 96585
Villa Sant'Angelo AQ 20 424 97009

Municipalities with at least 50000 inhabitants

An earthquake occurred to
26 Km S of L'Aquila (69753 inhabitants)
53 Km E of Tivoli (56533 inhabitants)
58 Km E of Guidonia Montecelio (88673 inhabitants)
65 Km SW of Teramo (54892 inhabitants)
68 Km W of Chieti (51815 inhabitants)
71 Km NE of Velletri (53303 inhabitants)
75 Km SW of Montesilvano (53738 inhabitants)
77 Km SW of Pescara (121014 inhabitants)
80 Km SE of Terni (111501 inhabitants)
80 Km E of Roma (2864731 inhabitants)
84 Km NE of Latina (125985 inhabitants)
86 Km NE of Aprilia (73446 inhabitants)
90 Km NE of Pomezia (62966 inhabitants)
99 Km NE of Anzio (54211 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
Reviewed
Rev100 		ML 1.1 2020-03-28
20:59:40		 42.1188 13.4087 10 2020-03-28
21:21:21		 Sala Sismica INGV-Roma 77654221
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-03-28 20:59:40 ± 0.06
Latitude 42.1188 ± 0.0036
Longitude 13.4087 ± 0.0048
Depth (km) 10 ± 0 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 77654221

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 498
Semi-minor axis of confidence ellipse (meter) 73
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 131
Circular confidence region, given by single value of horizontal uncertainty (meter) 500.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 159
Number of associated phases, regardless of their use for origin computation 11
Number of defining phases 10
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.13
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.35973
Number of stations at which the event was observed 6
Number of stations from which data was used for origin computation 5
Magnitude information

ML:1.1

Field Value
Value 1.1
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 77654221
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-03-28 21:21:21
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.CERT.HHZ. 2020-03-28T20:59:53.98 0.3 undecidable manual S 242 39.9267 50 0.08 73
IV.VVLD.HHZ. 2020-03-28T20:59:52.02 0.6 undecidable manual S 147 32.8449 50 0.01 50
IV.VIVA.HHZ. 2020-03-28T20:59:52.87 3.0 negative manual P 0.1 0
IV.T0110.HHZ. 2020-03-28T20:59:52.11 0.6 undecidable manual S 68 32.6451 50 0.15 49
IV.FAGN.HHZ. 2020-03-28T20:59:48.73 0.6 undecidable manual S 41 21.7671 114 0 51
IV.CERT.HHZ. 2020-03-28T20:59:48.14 0.1 undecidable manual P 242 39.9267 50 -0.09 97
IV.T0110.HHZ. 2020-03-28T20:59:47.17 0.1 undecidable manual P 68 32.6451 50 0.07 99
IV.VVLD.HHZ. 2020-03-28T20:59:46.96 0.1 undecidable manual P 147 32.8449 50 -0.17 97
IV.PTQR.HHZ. 2020-03-28T20:59:45.44 0.3 undecidable manual S 184 10.7781 132 -0.06 77
IV.FAGN.HHZ. 2020-03-28T20:59:45.14 0.1 positive manual P 41 21.7671 114 -0.1 100
IV.PTQR.HHZ. 2020-03-28T20:59:43.57 0.1 undecidable manual P 184 10.7781 132 0.19 100
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.PTQR.HHN. ML:1.1 0.000143 1.36 AML other m 2020-03-28T20:59:45.09
IV.PTQR.HHE. ML:1.2 0.00020800000000000001 0.16 AML other m 2020-03-28T20:59:46.16
IV.FAGN.HHN. ML:1.6 0.0002475 1.62 AML other m 2020-03-28T20:59:48.92
IV.FAGN.HHE. ML:1.5 0.0002125 0.48 AML other m 2020-03-28T20:59:50.00
IV.T0110.HHN. ML:1.1 0.00005205 1.22 AML other m 2020-03-28T20:59:52.89
IV.T0110.HHE. ML:1.1 0.00005785 1.58 AML other m 2020-03-28T20:59:54.88
IV.VVLD.HHE. ML:0.8 0.0000313 0.36 AML other m 2020-03-28T20:59:54.78
IV.CERT.HHN. ML:0.8 0.00001875 0.72 AML other m 2020-03-28T20:59:56.86
IV.VVLD.HHN. ML:0.8 0.0000298 0.38 AML other m 2020-03-28T20:59:56.84
IV.CERT.HHE. ML:0.9 0.000025500000000000003 0.6 AML other m 2020-03-28T20:59:57.63
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