Earthquake with magnitude of ML 0.9 on date 24-07-2020 and time 22:52:52 (UTC) in region 2 km NE Cittareale (RI)

A magnitude ML 0.9 earthquake occured in region: 2 km NE Cittareale (RI), on

  • 24-07-2020 22:52:52 (UTC)
  • 25-07-2020 00:52:52 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.6320, 13.1760 at 13 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 2 482 482
Accumoli RI 9 667 1149
Amatrice RI 9 2657 3806
Montereale AQ 13 2581 6387
Posta RI 14 694 7081
Borbona RI 14 617 7698
Capitignano AQ 16 665 8363
Cascia PG 16 3217 11580
Campotosto AQ 18 542 12122
Monteleone di Spoleto PG 18 599 12721
Arquata del Tronto AP 19 1178 13899
Leonessa RI 19 2435 16334
Norcia PG 19 4957 21291
Cagnano Amiterno AQ 20 1369 22660

Municipalities with at least 50000 inhabitants

An earthquake occurred to
36 Km NW of L'Aquila (69753 inhabitants)
43 Km W of Teramo (54892 inhabitants)
44 Km E of Terni (111501 inhabitants)
53 Km SE of Foligno (57155 inhabitants)
79 Km NE of Guidonia Montecelio (88673 inhabitants)
81 Km NE of Tivoli (56533 inhabitants)
81 Km W of Montesilvano (53738 inhabitants)
83 Km SE of Perugia (166134 inhabitants)
87 Km W of Pescara (121014 inhabitants)
87 Km W of Chieti (51815 inhabitants)
91 Km E of Viterbo (67173 inhabitants)
100 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
Reviewed
Rev100
ML 0.9 2020-07-24
22:52:52
42.6322 13.1763 13 2020-07-24
23:20:04
Sala Sismica INGV-Roma 81318151
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2020-07-24 22:52:52 ± 0.13
Latitude 42.6322 ± 0.0072
Longitude 13.1763 ± 0.0049
Depth (km) 13 ± 1 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 81318151

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 782
Semi-minor axis of confidence ellipse (meter) 224
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 16
Circular confidence region, given by single value of horizontal uncertainty (meter) 780.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 162
Number of associated phases, regardless of their use for origin computation 13
Number of defining phases 11
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.16
Epicentral distance of station closest to the epicenter (degree) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.31476
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 6
Magnitude information

ML:0.9

Field Value
Value 0.9
Uncertainty 0.2
Num. used stations 4
Type of magnitude ML
Reference to an origin 81318151
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2020-07-24 23:20:04
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.TERO.HHZ. 2020-07-24T22:53:03.60 0.6 undecidable manual S 92 34.9428 95 -0.37 45
IV.GAVE.EHZ. 2020-07-24T22:53:01.04 0.3 undecidable manual S 286 23.9538 100 -0.03 74
IV.SMA1.EHZ. 2020-07-24T22:52:58.40 0.6 undecidable manual S 91 12.9759 121 0.09 50
IV.TERO.HHZ. 2020-07-24T22:52:58.96 0.6 undecidable manual P 92 34.9428 95 -0.03 49
IV.RM33.EHZ. 2020-07-24T22:52:58.52 0.6 undecidable manual S 167 13.9749 118 -0.03 50
IV.GAVE.EHZ. 2020-07-24T22:52:57.37 0.3 positive manual P 286 23.9538 100 0.06 74
IV.T1299.HNE. 2020-07-24T22:52:57.19 0.6 undecidable manual S 88 8.6802 137 -0.23 49
IV.RM33.EHZ. 2020-07-24T22:52:56.07 1.0 negative manual P 167 13.9749 118 0.22 24
IV.SMA1.EHZ. 2020-07-24T22:52:55.95 0.3 negative manual P 91 12.9759 121 0.24 72
IV.T1299.HNE. 2020-07-24T22:52:55.30 0.1 undecidable manual P 88 8.6802 137 0.1 100
IV.LNSS.HHZ. 2020-07-24T22:52:55.34 0.6 undecidable manual P 254 11.5773 126 -0.19 49
IV.NRCA.HHZ. 2020-07-24T22:52:54.16 3.0 undecidable manual S 0
IV.NRCA.HHZ. 2020-07-24T22:52:52.93 3.0 undecidable manual P 0
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.SMA1.EHE. ML:1.2 0.00016450000000000001 0.34 AML other m 2020-07-24T22:52:58.84
IV.SMA1.EHN. ML:0.8 0.00006534999999999999 0.76 AML other m 2020-07-24T22:52:59.72
IV.GAVE.EHN. ML:0.7 0.000030400000000000004 0.5 AML other m 2020-07-24T22:53:01.55
IV.GAVE.EHE. ML:0.8 0.000035999999999999994 0.42 AML other m 2020-07-24T22:53:01.58
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