Earthquake with magnitude of Md 2.2 on date 19-04-1985 and time 09:52:55 (UTC) in region 8 km S Cisterna di Latina (LT)

A magnitude Md 2.2 earthquake occured in region: 8 km S Cisterna di Latina (LT), on

  • 19-04-1985 09:52:55 (UTC)
  • 19-04-1985 11:52:55 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.52, 12.82 at 10 km depth.

The earthquake was located by: Bollettino Sismico Italiano INGV.

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
Cisterna di Latina LT 8 36868 36868
Latina LT 9 125985 162853
Sermoneta LT 14 9842 172695
Norma LT 15 3946 176641
Nettuno RM 15 49167 225808
Cori LT 15 11065 236873
Aprilia LT 16 73446 310319
Bassiano LT 18 1583 311902
Anzio RM 18 54211 366113
Velletri RM 19 53303 419416
Rocca Massima LT 19 1136 420552
Lanuvio RM 20 13632 434184

Municipalities with at least 50000 inhabitants

An earthquake occurred to
9 Km NW of Latina (125985 inhabitants)
16 Km E of Aprilia (73446 inhabitants)
18 Km E of Anzio (54211 inhabitants)
19 Km S of Velletri (53303 inhabitants)
31 Km SE of Pomezia (62966 inhabitants)
49 Km S of Tivoli (56533 inhabitants)
50 Km SE of Roma (2864731 inhabitants)
54 Km S of Guidonia Montecelio (88673 inhabitants)
56 Km SE of Fiumicino (78395 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
Rev 1000 Md 2.2 1985-04-19
09:52:55
41.52 12.82 10 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 4979
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1985-04-19 09:52:55 ± 0.847
Latitude 41.52 ± 0.04
Longitude 12.82 ± 0.04
Depth (km) 10 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 4979

Uncertainty

Field Value
Preferred uncertainty description horizontal uncertainty
Semi-major axis of confidence ellipse (meter)
Semi-minor axis of confidence ellipse (meter)
Azimuth of major axis of confidence ellipse. Measured clockwise from South-North direction at epicenter (gradi)
Circular confidence region, given by single value of horizontal uncertainty (meter) 5650
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 266
Number of associated phases, regardless of their use for origin computation 6
Number of defining phases 6
RMS of the travel time residuals of the arrivals used for the origin computation (sec) 0.5
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00834
Number of stations at which the event was observed 3
Number of stations from which data was used for origin computation 3
Magnitude information

Md:2.2

Field Value
Value 2.2
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 4979
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 17:09:30
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance Takeoff_angle Residual Weight
--.AQU.Z. 1985-04-19T09:53:27.00 10.0 undecidable manual SG 27 0.0083 -0.15 0.7
--.SD1.Z. 1985-04-19T09:53:23.00 10.0 undecidable manual SG 75 0.0068 1.41 0.1
--.AQU.Z. 1985-04-19T09:53:13.00 10.0 undecidable manual PG 27 0.0083 -0.65 1.1
--.SD1.Z. 1985-04-19T09:53:10.00 10.0 undecidable manual PG 75 0.0068 -0.44 1.7
--.RDP.Z. 1985-04-19T09:53:05.00 10.0 undecidable manual SG 341 0.0022 -0.06 0.9
--.RDP.Z. 1985-04-19T09:53:01.50 10.0 undecidable manual PG 341 0.0022 0.6 1.5
TDMT - Time Domain Moment Tensor
Focal Mechanism in the area
Download
Type Description Link
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