Earthquake with magnitude of Md 2.3 on date 13-04-1997 and time 07:29:05 (Italy) in region 4 km N Esperia (FR)

A magnitude Md 2.3 earthquake occured in region: 4 km N Esperia (FR), on

  • 13-04-1997 05:29:05 (UTC)
  • 13-04-1997 07:29:05 (UTC +02:00) Italian time

and geographic coordinates (lat, lon) 41.4210, 13.6940 at 5 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
Esperia FR 4 3828 3828
Pontecorvo FR 5 13242 17070
San Giorgio a Liri FR 6 3164 20234
Castelnuovo Parano FR 7 883 21117
Aquino FR 8 5370 26487
Pignataro Interamna FR 8 2595 29082
Ausonia FR 9 2619 31701
Piedimonte San Germano FR 10 6535 38236
Coreno Ausonio FR 11 1644 39880
Sant'Apollinare FR 12 1919 41799
Vallemaio FR 12 937 42736
Pico FR 12 2888 45624
Villa Santa Lucia FR 12 2632 48256
Castrocielo FR 12 3965 52221
Spigno Saturnia LT 13 2961 55182
Sant'Andrea del Garigliano FR 14 1505 56687
Cassino FR 14 36142 92829
Campodimele LT 14 622 93451
Colle San Magno FR 14 699 94150
San Giovanni Incarico FR 15 3336 97486
Roccasecca FR 15 7365 104851
Sant'Ambrogio sul Garigliano FR 15 966 105817
Terelle FR 17 422 106239
Santi Cosma e Damiano LT 17 6897 113136
Colfelice FR 17 1932 115068
Falvaterra FR 17 554 115622
Rocca d'Evandro CE 17 3283 118905
Castelforte LT 17 4386 123291
Pastena FR 18 1462 124753
Minturno LT 18 19783 144536
Cervaro FR 19 8109 152645
Lenola LT 19 4189 156834
Sant'Elia Fiumerapido FR 20 6166 163000
Formia LT 20 38127 201127
Itri LT 20 10677 211804

Municipalities with at least 50000 inhabitants

An earthquake occurred to
66 Km NW of Aversa (53047 inhabitants)
66 Km NW of Caserta (76326 inhabitants)
66 Km E of Latina (125985 inhabitants)
69 Km NW of Giugliano in Campania (122974 inhabitants)
71 Km NW of Marano di Napoli (59874 inhabitants)
72 Km NW of Pozzuoli (81661 inhabitants)
76 Km NW of Afragola (65057 inhabitants)
76 Km NW of Casoria (77642 inhabitants)
78 Km NW of Acerra (59573 inhabitants)
80 Km NW of Napoli (974074 inhabitants)
82 Km E of Velletri (53303 inhabitants)
86 Km NW of Portici (55274 inhabitants)
87 Km NW of Ercolano (53709 inhabitants)
89 Km E of Anzio (54211 inhabitants)
89 Km E of Aprilia (73446 inhabitants)
90 Km NW of Torre del Greco (86275 inhabitants)
96 Km SE of Tivoli (56533 inhabitants)
97 Km W of Benevento (60091 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
Bulletin
Rev1000
Md 2.3 1997-04-13
05:29:05
41.421 13.694 5 2013-07-15
08:41:04
Bollettino Sismico Italiano INGV 266019
Preferred location and magnitude until now.
Origin information

Origin

Field Value
Time (UTC) 1997-04-13 05:29:05 ± 0.503
Latitude 41.4210 ± 0.0259
Longitude 13.6940 ± 0.0433
Depth (km) 5 (operator assigned)
Evaluation mode of Origin manual
Evaluation status of Origin reviewed
Version 1000 -> BULLETIN-VAX
Event type earthquake
Origin ID 266019

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) 4614.0
Confidence level of the uncertainty (%) 68

Quality

Field Value
Largest azimuthal gap in station distribution as seen from epicenter (degree) 221
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) 0.3
Epicentral distance of station closest to the epicenter (degree) 0.00219
Epicentral distance of station farthest from the epicenter (degree) 0.00575
Number of stations at which the event was observed 4
Number of stations from which data was used for origin computation 4
Magnitude information

Md:2.3

Field Value
Value 2.3
Uncertainty
Num. used stations 3
Type of magnitude Md
Reference to an origin 266019
Agency INGV
Autore Bollettino Sismico Italiano INGV
Time of creation (UTC) 2013-01-04 21:11:31
Picking and Arrival
SCNL Time Uncertainty Polarity Evaluation_mode Phase Azimuth Distance(km) Takeoff_angle Residual Weight
--.PQ9.Z. 1997-04-13T05:29:28.19 10.0 undecidable manual SG 340 0.6327 -0.33 0.5
--.RMI2.Z. 1997-04-13T05:29:23.21 10.0 undecidable manual SG 111 0.4551 0.47 0.5
--.PQ9.Z. 1997-04-13T05:29:18.57 10.0 undecidable manual PG 340 0.6327 -0.06 1.7
--.RMI2.Z. 1997-04-13T05:29:16.20 10.0 undecidable manual PG 111 0.4551 0.72 0.6
--.RFI.Z. 1997-04-13T05:29:13.91 10.0 undecidable manual SG 119 0.2442 -0.97 0.1
--.SDI.Z. 1997-04-13T05:29:11.94 10.0 undecidable manual PG 16 0.2997 0.05 2.1
--.RFI.Z. 1997-04-13T05:29:10.38 10.0 undecidable manual PG 119 0.2442 -0.38 1.5
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