Earthquake with magnitude of ML 1.5 on date 25-10-2016 and time 11:25:20 (Italy) in region 5 km W Micigliano (RI)

A magnitude ML 1.5 earthquake occured in region: 5 km W Micigliano (RI), on

  • 25-10-2016 09:25:20 (UTC)
  • 25-10-2016 11:25:20 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 42.4590, 12.9990 at 26 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
Micigliano RI 5 127 127
Castel Sant'Angelo RI 8 1308 1435
Borgo Velino RI 8 972 2407
Cantalice RI 8 2755 5162
Antrodoco RI 8 2588 7750
Cittaducale RI 9 6828 14578
Poggio Bustone RI 10 2055 16633
Posta RI 11 694 17327
Leonessa RI 12 2435 19762
Borbona RI 13 617 20379
Rieti RI 13 47698 68077
Rivodutri RI 13 1253 69330
Concerviano RI 15 291 69621
Morro Reatino RI 16 373 69994
Belmonte in Sabina RI 18 636 70630
Labro RI 18 374 71004
Colli sul Velino RI 19 533 71537
Cagnano Amiterno AQ 19 1369 72906
Greccio RI 19 1558 74464
Polino TR 19 233 74697
Petrella Salto RI 19 1197 75894
Contigliano RI 20 3783 79677

Municipalities with at least 50000 inhabitants

An earthquake occurred to
31 Km E of Terni (111501 inhabitants)
35 Km W of L'Aquila (69753 inhabitants)
56 Km NE of Guidonia Montecelio (88673 inhabitants)
57 Km N of Tivoli (56533 inhabitants)
60 Km SE of Foligno (57155 inhabitants)
62 Km W of Teramo (54892 inhabitants)
74 Km E of Viterbo (67173 inhabitants)
76 Km NE of Roma (2864731 inhabitants)
88 Km SE of Perugia (166134 inhabitants)
88 Km N of Velletri (53303 inhabitants)
95 Km W of Montesilvano (53738 inhabitants)
97 Km W of Chieti (51815 inhabitants)
97 Km NE of Pomezia (62966 inhabitants)
99 Km NE of Fiumicino (78395 inhabitants)
100 Km W of Pescara (121014 inhabitants)
100 Km N of Aprilia (73446 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 1.5 2016-10-25
09:25:20
42.4592 12.9993 26 2016-10-25
09:36:45
Sala Sismica INGV-Roma 30530371
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 2016-10-25 09:25:20 ± 0.4
Latitude 42.4592 ± 0.0063
Longitude 12.9993 ± 0.0146
Depth (km) 26 ± 2 (from location)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 100 -> SURVEY-INGV
Event type earthquake
Origin ID 30530371

Uncertainty

Field Value
Preferred uncertainty description uncertainty ellipse
Semi-major axis of confidence ellipse (meter) 1187
Semi-minor axis of confidence ellipse (meter) 410
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi) 69
Circular confidence region, given by single value of horizontal uncertainty (meter) 1190.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 150
Number of associated phases, regardless of their use for origin computation 10
Number of defining phases 7
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) 0.00000
Epicentral distance of station farthest from the epicenter (degree) 0.20954
Number of stations at which the event was observed 7
Number of stations from which data was used for origin computation 4
Magnitude information

ML:1.5

Field Value
Value 1.5
Uncertainty 0.2
Num. used stations 2
Type of magnitude ML
Reference to an origin 30530371
Agency INGV
Autore Sala Sismica INGV-Roma
Time of creation (UTC) 2016-10-25 09:36:45
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
IV.ARVD.HHZ. 2016-10-25T09:25:39.63 3.0 negative manual Pg 6.26 0
IV.VVLD.HHZ. 2016-10-25T09:25:32.40 3.0 undecidable manual Pg 0.17 0
IV.FIAM.HHZ. 2016-10-25T09:25:30.75 0.1 undecidable manual S 155 23.2545 133 0.06 99
IV.T1211.EHZ. 2016-10-25T09:25:29.22 0.1 undecidable manual S 305 14.3745 148 0.06 100
IV.LNSS.HHZ. 2016-10-25T09:25:29.32 0.1 undecidable manual S 12 16.2726 144 -0.13 98
IV.VIVA.HHZ. 2016-10-25T09:25:27.31 3.0 positive manual P -0.08 0
IV.FIAM.HHZ. 2016-10-25T09:25:26.01 0.6 positive manual P 155 23.2545 133 -0.26 47
IV.LNSS.HHZ. 2016-10-25T09:25:25.74 0.1 positive manual P 12 16.2726 144 0.18 97
IV.RM33.EHZ. 2016-10-25T09:25:25.91 1.0 positive manual P 73 18.4704 141 0.15 24
IV.T1211.EHZ. 2016-10-25T09:25:24.96 1.0 positive manual P 305 14.3745 148 -0.43 23
Station Magnitude and Amplitude
SCNL mag Generic_amplitude Period Type Category Unit Time_window_reference
IV.FIAM.HHN. ML:1.2 0.0000764 0.52 AML other m 2016-10-25T09:25:30.42
IV.FIAM.HHE. ML:1.3 0.0000853 0.38 AML other m 2016-10-25T09:25:31.80
IV.LNSS.HHN. ML:1.6 0.0001795 0.42 AML other m 2016-10-25T09:25:31.46
IV.LNSS.HHE. ML:1.8 0.0002805 0.4 AML other m 2016-10-25T09:25:29.81
TDMT - Time Domain Moment Tensor
Fault Plane solutions in the area
Download
Type Description Link
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QuakeML - full Event, Origin, FocalMechanism, Amplitude, Arrival, Pick, Station Magnitude Download