Earthquake with magnitude of ML 1.4 on date 15-05-2021 and time 14:34:30 (UTC) in region 5 km NE Cittareale (RI)

A magnitude ML 1.4 earthquake occured in region: 5 km NE Cittareale (RI), on

  • 15-05-2021 14:34:30 (UTC)
  • 15-05-2021 16:34:30 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6410, 13.2090 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.

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 5 482 482
Amatrice RI 7 2657 3139
Accumoli RI 7 667 3806
Montereale AQ 13 2581 6387
Capitignano AQ 15 665 7052
Borbona RI 16 617 7669
Posta RI 16 694 8363
Campotosto AQ 16 542 8905
Arquata del Tronto AP 16 1178 10083
Cascia PG 18 3217 13300
Norcia PG 19 4957 18257

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
41 Km W of Teramo (54892 inhabitants)
47 Km E of Terni (111501 inhabitants)
54 Km SE of Foligno (57155 inhabitants)
78 Km W of Montesilvano (53738 inhabitants)
81 Km NE of Guidonia Montecelio (88673 inhabitants)
82 Km NE of Tivoli (56533 inhabitants)
85 Km SE of Perugia (166134 inhabitants)
85 Km W of Pescara (121014 inhabitants)
85 Km W of Chieti (51815 inhabitants)
94 Km E of Viterbo (67173 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 1.4 2021-05-15
14:34:30
42.6408 13.2092 10 2021-05-15
15:00:47
Sala Sismica INGV-Roma 90129591
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2021-05-15 14:34:30 ± 0.09
Latitude 42.6408 ± 0.0054
Longitude 13.2092 ± 0.0073
Depth (km) 10 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 90129591

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 575
Semi-minor axis of confidence ellipse (meter) 550
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 154
Circular confidence region, given by single value of horizontal uncertainty (meter) 580.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 82
Number of associated phases, regardless of their use for origin computation 16
Number of defining phases 16
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.25
Epicentral distance of station closest to the epicenter (degree) 0.09353
Epicentral distance of station farthest from the epicenter (degree) 0.45056
Number of stations at which the event was observed 9
Number of stations from which data was used for origin computation 9
Magnitude information

ML:1.4

Field Value
Value 1.4
Uncertainty 0.3
Num. used stations 10
Type of magnitude ML
Reference to an origin 90129591
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2021-05-15 15:00:47
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.MF5.EHZ. 2021-05-15T14:34:45.38 0.6 undecidable manual S 28 43.5231 50 0.83 38
IV.ARRO.EHZ. 2021-05-15T14:34:42.81 0.6 undecidable manual S 259 36.8298 50 0.05 48
IV.CSP1.EHZ. 2021-05-15T14:34:39.66 0.6 undecidable manual P 360 50.0166 50 0.17 45
IV.GAVE.EHZ. 2021-05-15T14:34:39.70 0.6 undecidable manual S 283 26.3514 50 -0.25 47
IV.NRCA.HHZ. 2021-05-15T14:34:38.41 0.6 undecidable manual S 340 22.755 114 -0.41 45
IV.MF5.EHZ. 2021-05-15T14:34:38.71 0.6 undecidable manual P 28 43.5231 50 0.22 46
IV.ARRO.EHZ. 2021-05-15T14:34:37.51 0.6 undecidable manual P 259 36.8298 50 0.06 48
IV.TERO.HHZ. 2021-05-15T14:34:36.17 0.3 undecidable manual P 93 32.2455 50 -0.58 64
IV.RM33.EHZ. 2021-05-15T14:34:36.23 0.6 undecidable manual S 178 14.6742 124 -0.11 49
IV.LNSS.HHZ. 2021-05-15T14:34:36.53 0.6 undecidable manual S 253 14.3745 125 0.25 48
IV.SMA1.EHZ. 2021-05-15T14:34:35.06 0.6 undecidable manual S 96 10.3785 134 -0.12 49
IV.NRCA.HHZ. 2021-05-15T14:34:35.02 0.1 positive manual P 340 22.755 114 -0.16 96
IV.GAVE.EHZ. 2021-05-15T14:34:35.69 0.1 positive manual P 283 26.3514 50 -0.14 96
IV.RM33.EHZ. 2021-05-15T14:34:33.76 0.1 positive manual P 178 14.6742 124 0.01 100
IV.LNSS.HHZ. 2021-05-15T14:34:33.94 0.1 positive manual P 253 14.3745 125 0.23 96
IV.SMA1.EHZ. 2021-05-15T14:34:33.26 0.1 undecidable manual P 96 10.3785 134 0.18 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:2.2 0.00193 0.34 AML other m 2021-05-15T14:34:35.58
IV.SMA1.EHN. ML:1.8 0.0008169999999999999 0.26 AML other m 2021-05-15T14:34:35.55
IV.RM33.EHN. ML:1.3 0.000179 0.24 AML other m 2021-05-15T14:34:36.40
IV.LNSS.HHN. ML:1.3 0.0002 0.36 AML other m 2021-05-15T14:34:36.64
IV.LNSS.HHE. ML:1.3 0.0002065 1.2 AML other m 2021-05-15T14:34:37.69
IV.RM33.EHE. ML:1.2 0.00015 1.16 AML other m 2021-05-15T14:34:37.97
IV.NRCA.HHE. ML:1.4 0.0001555 0.12 AML other m 2021-05-15T14:34:38.64
IV.NRCA.HHN. ML:1.1 0.00007585 0.88 AML other m 2021-05-15T14:34:39.37
IV.GAVE.EHE. ML:1.3 0.000122 0.34 AML other m 2021-05-15T14:34:40.23
IV.GAVE.EHN. ML:1.4 0.000126 0.3 AML other m 2021-05-15T14:34:40.43
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