Earthquake with magnitude of ML 1.0 on date 14-08-2023 and time 16:25:07 (UTC) in region 2 km W Motta Sant'Anastasia (CT)

A magnitude ML 1.0 earthquake occured in region: 2 km W Motta Sant'Anastasia (CT), on

  • 14-08-2023 16:25:07 (UTC)
  • 14-08-2023 18:25:07 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 37.5120, 14.9450 at 11 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
Motta Sant'Anastasia CT 2 12116 12116
Misterbianco CT 6 49410 61526
PaternĂ² CT 8 48228 109754
Camporotondo Etneo CT 8 5023 114777
Belpasso CT 9 28108 142885
San Pietro Clarenza CT 10 7743 150628
Gravina di Catania CT 12 25838 176466
Mascalucia CT 12 31958 208424
Catania CT 13 314555 522979
Santa Maria di Licodia CT 13 7641 530620
Sant'Agata li Battiati CT 13 9479 540099
Ragalna CT 13 3924 544023
Tremestieri Etneo CT 13 20589 564612
Nicolosi CT 14 7463 572075
San Giovanni la Punta CT 15 23060 595135
Pedara CT 16 14102 609237
San Gregorio di Catania CT 16 11966 621203
Biancavilla CT 16 24007 645210
Trecastagni CT 17 10910 656120
Viagrande CT 17 8563 664683
Aci Bonaccorsi CT 17 3524 668207
Valverde CT 18 7840 676047
Aci Castello CT 18 18723 694770
Aci Sant'Antonio CT 19 17984 712754
Adrano CT 19 36122 748876

Municipalities with at least 50000 inhabitants

An earthquake occurred to
13 Km W of Catania (314555 inhabitants)
23 Km SW of Acireale (52622 inhabitants)
59 Km NW of Siracusa (122291 inhabitants)
68 Km N of Ragusa (73313 inhabitants)
72 Km NE of Vittoria (63339 inhabitants)
74 Km N of Modica (54633 inhabitants)
78 Km E of Caltanissetta (63360 inhabitants)
79 Km NE of Gela (75827 inhabitants)
91 Km SW of Reggio di Calabria (183035 inhabitants)
93 Km SW of Messina (238439 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 1.0 2023-08-14
16:25:07
37.5122 14.9453 11 2023-08-14
16:31:48
Sala Sismica INGV-Roma 120123391
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2023-08-14 16:25:07 ± 0.13
Latitude 37.5122 ± 0.0063
Longitude 14.9453 ± 0.0170
Depth (km) 11 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 120123391

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1520
Semi-minor axis of confidence ellipse (meter) 730
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 266
Circular confidence region, given by single value of horizontal uncertainty (meter) 1520.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 134
Number of associated phases, regardless of their use for origin computation 7
Number of defining phases 7
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.28
Epicentral distance of station closest to the epicenter (degree) 0.11781
Epicentral distance of station farthest from the epicenter (degree) 0.36872
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.0

Field Value
Value 1.0
Uncertainty 0.1
Num. used stations 2
Type of magnitude ML
Reference to an origin 120123391
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2023-08-14 16:31:48
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.SSY.HHZ. 2023-08-14T16:25:21.70 0.6 undecidable manual S 164 40.9257 50 0.33 46
IV.SSY.HHZ. 2023-08-14T16:25:15.37 0.1 undecidable manual P 164 40.9257 50 -0.33 91
IV.HLNI.HHZ. 2023-08-14T16:25:15.45 0.6 undecidable manual S 200 19.2696 50 -0.14 49
IV.ESML.HHZ. 2023-08-14T16:25:13.51 0.6 undecidable manual S 334 13.0758 130 -0.38 47
IV.EPOZ.HHE. 2023-08-14T16:25:13.67 0.1 undecidable manual P 50 27.75 50 0 100
IV.HLNI.HHZ. 2023-08-14T16:25:12.49 0.1 undecidable manual P 200 19.2696 50 0.12 99
IV.ESML.HHZ. 2023-08-14T16:25:11.68 0.1 undecidable manual P 334 13.0758 130 0.29 97
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.HLNI.HHE. ML:1.1 0.00009415 0.1 AML other m 2023-08-14T16:25:16.42
IV.HLNI.HHN. ML:0.9 0.0000625 0.52 AML other m 2023-08-14T16:25:16.73
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